Display system

Abstract

To solve the following problem: operation setting information is created on the basis of user setting, so that there is a case where an operation setting is different from a setting condition corresponding to scenes of video contents.SOLUTION: A display system includes: a display device capable of displaying a first image; an imaging device capturing the image displayed by the display device and creating a captured image including the first image; a control unit controlling the display device; and a server acquiring the captured image via a network. The server acquires related information related to scenes constituted by the first image included in the captured image, determines, on the basis of the related information, correction information for correcting a display mode of a second image displayed after the first image by the display device, and transmits the correction information to the control unit. The control unit corrects the display mode on the basis of the correction information.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a display system. [Background technology]

[0002] There is known a projector that can set operation setting information based on image information. The projector described in Patent Document 1 is connected to an information providing server via a network. The projector transmits usage information including image content of the image information to the information providing server. The usage information is generated when a user performs a selection operation on a menu screen. The information providing server transmits operation setting information corresponding to the usage information to the projector. The operation setting information is information related to image quality adjustments such as color tone, color density, sharpness, brightness, and contrast. The projector adjusts the projection operation based on the operation setting information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-217310 A Summary of the Invention [Problem to be solved by the invention]

[0004] Since the operation setting information is generated based on user settings, the settings may differ from the setting conditions corresponding to the scenes of the video content. [Means for solving the problem]

[0005] The display system of the present disclosure includes a display device capable of displaying a first image, an imaging device that captures the first image displayed by the display device and generates a captured image including the first image, a control device that controls the display device, and a server that acquires the captured image via a network, wherein the server acquires related information relating to a scene constituted by the first image included in the captured image, and determines correction information for correcting a display mode of a second image displayed after the first image by the display device based on the related information, transmits the correction information to the control device, and the control device corrects the display mode based on the correction information.

[0006] The display system of the present disclosure includes a display device capable of displaying a first image, an imaging device that captures the first image displayed by the display device and generates a captured image including the first image, a control device that controls the display device, and a server that acquires the captured image via a network, wherein the server acquires related information relating to a scene constituted by the first image included in the captured image and transmits the related information to the control device, and the control device determines correction information for correcting a display mode of a second image displayed by the display device after the first image based on the related information, and corrects the display mode based on the correction information.

[0007] The display system of the present disclosure includes a display device capable of displaying a first image, an imaging device that captures the first image displayed by the display device and generates a captured image including the first image, and a control device that acquires the captured image and controls the display device, wherein the control device acquires related information relating to a scene constituted by the first image included in the captured image, and corrects the display mode of a second image displayed by the display device after the first image based on the related information. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of an image display system. [Diagram 2] FIG. 1 is a block diagram showing the configuration of an image display system. [Diagram 3] FIG. 4 is a diagram showing an example of a conversion table. [Figure 4] FIG. 2 is a diagram illustrating a schematic diagram of video content and imaging data. [Diagram 5] FIG. 4 is a diagram showing a control flow performed between a projector and a service providing server. [Figure 6] FIG. 4 is a diagram showing a control flow performed between a service providing server and an information providing server. [Figure 7] FIG. 1 is a diagram showing a schematic configuration of an image display system. [Figure 8] FIG. 1 is a block diagram showing the configuration of an image display system. [Figure 9] 4 is a diagram showing a control flow performed in a projector, an image providing device, and a service providing server. [Figure 10] FIG. 1 is a diagram showing a schematic configuration of an image display system. [Figure 11] FIG. 1 is a block diagram showing the configuration of an image display system. [Figure 12] FIG. 4 is a diagram showing a control flow performed between a projector and a service providing server. [Figure 13] FIG. 1 is a diagram showing a schematic configuration of an image display system. [Figure 14] FIG. 1 is a block diagram showing the configuration of an image display system. [Figure 15] FIG. 4 is a diagram showing a control flow performed between a projector and an information providing server. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] First embodiment The first embodiment illustrates an image display system 1 that corrects a projection image PG projected by a projector 10 using a correction profile transmitted from a service providing server 200. The projector 10 transmits imaging data CD captured by an imaging unit 20 to the service providing server 200 via a communication network NW. The service providing server 200 generates a correction profile based on the imaging data CD. The service providing server 200 transmits the correction profile to the projector 10 via the communication network NW.

[0010] FIG. 1 shows a schematic configuration of an image display system 1. FIG. 1 shows a schematic configuration of a first image display system 1a, which is an example of the image display system 1. The first image display system 1a includes a projector 10, an imaging unit 20, an image providing device 100, a service providing server 200, and an information providing server 300. The projector 10, the service providing server 200, and the information providing server 300 are communicatively connected via a communication network NW. The first image display system 1a may include a microphone 30. The image display system 1 including the first image display system 1a corresponds to an example of a display system.

[0011] The communication network NW is composed of communication facilities such as a public line network, a dedicated line, or other communication lines. The communication network NW may be a wide area network or a local network. The communication network NW may be composed of at least one of a wireless communication circuit and a wired communication circuit. The communication network NW corresponds to an example of a network.

[0012] The projector 10 projects the projection image PG onto the projection surface SC. The projector 10 is capable of displaying the projection image PG on the projection surface SC by projecting the projection image PG onto the projection surface SC. The projector 10 corresponds to an example of a display device. The projection image PG corresponds to an example of an image.

[0013] The projection surface SC displays the projection image PG. The projection surface SC shown in FIG. 1 is made of a flat plate-like member, but is not limited to this. The projection surface SC may be made of cloth or the like. The projection surface SC may be a wall or floor of a building. The projection surface SC may be made of a curved surface or a surface having projections and recesses. The projection surface SC corresponds to an example of a projection target.

[0014] The imaging unit 20 captures a projection image PG. The imaging unit 20 captures a projection surface SC including the projection image PG, and captures the entire projection image PG. The imaging unit 20 captures the projection image PG to generate imaging data CD. The imaging data CD is data indicating the captured projection image PG. The imaging unit 20 corresponds to an example of an imaging device. The imaging data CD corresponds to an example of a captured image.

[0015] The imaging unit 20 has an imaging element such as a complementary metal oxide semiconductor (CMOS), a charge coupled device (CCD), etc. The imaging unit 20 shown in Fig. 1 captures a projection image PG based on the control of the projector 10, and generates imaging data CD.

[0016] 1 is provided in the projector 10, but is not limited to this. The imaging unit 20 may be configured separately from the projector 10. When the imaging unit 20 is configured separately from the projector 10, the imaging unit 20 is connected to the projector 10 for communication by wire or wirelessly. The arrangement position of the imaging unit 20 is set appropriately.

[0017] The image providing device 100 transmits image data to the projector 10. The image data is data for causing the projector 10 to project a scene image SG included in the video content VC of a movie, a TV drama, or the like. That is, the video content VC, which is a type of projection image PG, is displayed on the projection surface SC by the projector 10. The image providing device 100 may transmit attribute information regarding the video content VC to the projector 10. The attribute information is an example of content information indicating the type, details, etc. of the video content VC. The image providing device 100 acquires the video content VC via the communication network NW. The image providing device 100 may acquire the video content VC from a drive that plays media. The image providing device 100 is, for example, configured as a personal computer. The image providing device 100 may be configured as various types of disc players.

[0018] The image providing device 100 shown in FIG. 1 is connected to the projector 10 via a video cable 150. The video cable 150 transmits image data and the like from the image providing device 100 to the projector 10. The video cable 150 is composed of an HDMI (High-Definition Multimedia Interface) cable, a USB (Universal Serial Bus) cable, or the like. HDMI is a registered trademark. The image providing device 100 is connected to the projector 10 via the video cable 150, but is not limited to this. The image providing device 100 may be connected to the projector 10 wirelessly. The image providing device 100 may be connected to the projector 10 via a communication network NW.

[0019] The service providing server 200 transmits the correction parameters to the projector 10. The correction parameters include image quality parameters and audio parameters. The image quality parameters are data for correcting the image quality of the projection image PG when the projector 10 projects the projection image PG based on the image data. The audio parameters are data for correcting the output audio when the projector 10 plays back the playback audio data SD included in the video content VC. The service providing server 200 transmits the correction parameters to the projector 10, thereby correcting the display mode, etc., of the projection image PG projected by the projector 10.

[0020] The service providing server 200 acquires the imaging data CD. The service providing server 200 acquires content information, evaluation information, and the like, based on the imaging data CD. The content information is various information related to the video content VC including the scene image SG related to the imaging data CD. The imaging data CD is acquired by imaging the video content VC including the scene image SG, so the imaging data CD includes the scene image SG. More specifically, an image corresponding to the scene image SG is captured in the imaging data CD. The evaluation information is information indicating evaluations, etc. related to the video content VC, the scene image SG, and the like. The service providing server 200 acquires the content information, evaluation information, and the like from the information providing server 300 via the communication network NW. The service providing server 200 may be configured as a cloud server. The service providing server 200 corresponds to an example of a server. The video content VC corresponds to an example of content. The scene image SG is an image constituting one scene of the video content VC. One scene of the video content VC is, for example, a prologue, a climax, an ending, painful, or sad. The scene images SG include a scene image showing a prologue, a scene image showing a climax, a scene image showing an ending, etc. In this embodiment, a plurality of scene images SG constitute one scene. In other words, a scene is common to a plurality of scene images SG.

[0021] The information providing server 300 provides various information to the service providing server 200. The information providing server 300 is connected to the service providing server 200 via the communication network NW. The information providing server 300 transmits various information to the service providing server 200 based on a request instruction from the service providing server 200.

[0022] The information providing server 300 is composed of an SNS server, a web server, etc. SNS is an abbreviation for Social Networking Service. The information providing server 300 stores a plurality of web pages. The information providing server 300 transmits various information included in the web pages to the service providing server 200. The information providing server 300 corresponds to an example of a website.

[0023] 1 shows one information providing server 300, but is not limited to this. The first image display system 1a may be connected to a plurality of information providing servers 300 via a communication network NW. The service providing server 200 is connected to the plurality of information providing servers 300 via the communication network NW to acquire various information.

[0024] The microphone 30 inputs ambient sound, which is sound around the projector 10. When the projector 10 projects a scene image SG included in the video content VC, the microphone 30 acquires sound output corresponding to the scene image SG and generates audio data. The microphone 30 transmits the audio data to the projector 10. The microphone 30 may be a built-in microphone built into the projector 10, or an external microphone attached to the projector 10. The microphone 30 does not necessarily have to be provided.

[0025] Fig. 2 shows a block configuration of the image display system 1. Fig. 2 shows a block configuration of a first image display system 1a which is an example of the image display system 1. The projector 10, the service providing server 200, and the information providing server 300 are connected via a communication network NW. The projector 10 is connected to the image providing device 100 via a communication interface 70.

[0026] The projector 10 includes an imaging unit 20, a microphone 30, an image projection device 40, a storage device 50, a projector control device 60, and a communication interface 70. The projector 10 shown in Fig. 2 has the imaging unit 20 and the microphone 30 built in. The imaging unit 20 and the microphone 30 are connected for communication with the projector control device 60 and the like.

[0027] The imaging unit 20 captures the projection image PG in response to an instruction from a user, etc. The imaging unit 20 may capture the projection image PG at a predetermined time interval based on the control of the projector control device 60. The imaging unit 20 generates imaging data CD by capturing the projection image PG. The imaging unit 20 generates one or more pieces of imaging data CD. The imaging unit 20 transmits the imaging data CD to the storage device 50, and causes the storage device 50 to store the imaging data CD.

[0028] The microphone 30 inputs ambient sound of the projector 10 when the imaging unit 20 captures the projection image PG. The microphone 30 inputs ambient sound based on the control of the projector control device 60. The ambient sound includes sound output corresponding to the scene image SG. The microphone 30 generates audio data by inputting the ambient sound. The microphone 30 transmits the audio data to the storage device 50. The audio data is stored in the storage device 50 in association with the imaging data CD.

[0029] The image projection device 40 projects image light onto a projection surface SC. The image projection device 40 projects a projection image PG onto the projection surface SC by projecting the image light. The image projection device 40 includes a light source 41, a light modulation device 43, and an optical unit 45. The image projection device 40 corresponds to an example of a projection device.

[0030] The light source 41 emits light to the light modulation device 43. The light source 41 is constituted by a lamp light source such as a halogen lamp, a xenon lamp, an extra-high pressure mercury lamp, etc. The light source 41 may be constituted by a solid-state light source such as an LED (Light Emitting Diode) or a laser light source.

[0031] The light modulation device 43 has a light modulation element. The light modulation element modulates the light emitted from the light source 41. The light modulation element is composed of a transmissive liquid crystal light valve, a reflective liquid crystal light valve, a digital mirror device, etc. The light modulation device 43 emits the image light modulated by the light modulation element to the optical unit 45.

[0032] The optical unit 45 has optical elements such as lenses and mirrors. The optical unit 45 emits the image light modulated by the light modulation device 43 toward the projection surface SC. The optical unit 45 emits the image light toward the projection surface SC, thereby projecting a projection image PG onto the projection surface SC.

[0033] The storage device 50 stores various data, programs, etc. The storage device 50 stores a control program CP. The storage device 50 stores imaging data CD and a mode setting value MV. The storage device 50 may store audio data generated by the microphone 30. The storage device 50 is composed of a volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a non-volatile memory such as a flash memory, etc.

[0034] The control program CP is firmware that causes the projector control device 60 to operate as various functional units. The control program CP, when executed by the projector control device 60, causes the projector control device 60 to operate as various functional units.

[0035] The imaging data CD is generated by the imaging unit 20. The storage device 50 stores one or more pieces of imaging data CD. When the microphone 30 generates audio data, the imaging data CD is stored together with the audio data.

[0036] The mode setting value MV is data related to the color mode of the projector 10. The projector 10 projects the projection image PG onto the projection surface SC in a color mode such as natural mode, cinema mode, dynamic mode, etc. The mode setting value MV is setting data used when generating the projection image PG corresponding to the color mode. The mode setting value MV is composed of a plurality of values ​​corresponding to a plurality of parameters to be set. The mode setting value MV may have a value for setting a parameter related to audio output. The storage device 50 stores a plurality of mode setting values ​​MV. The storage device 50 stores the mode setting values ​​MV corresponding to each color mode.

[0037] The projector control device 60 is a controller that controls the projector 10. As an example, the projector control device 60 is a processor having a CPU (Central Processing Unit). The projector control device 60 is composed of one or more processors. The projector control device 60 may have a semiconductor memory such as a ROM or a RAM. The semiconductor memory functions as a work area of ​​the projector control device 60. The projector control device 60 functions as various functional units by executing a control program CP. The projector control device 60 functions as a communication control unit 61, a correction control unit 63, and an image processing unit 65 by executing the control program CP. The projector control device 60 may function as a functional unit other than the communication control unit 61, the correction control unit 63, and the image processing unit 65 by executing the control program CP. The projector control device 60 corresponds to an example of a control device.

[0038] The communication control unit 61 controls communication with the image providing device 100 and the service providing server 200 via the communication interface 70. The communication control unit 61 controls communication of image data transmitted from the image providing device 100. The communication control unit 61 causes the imaging data CD to be transmitted to the service providing server 200 via the communication interface 70. After transmitting the imaging data CD, the communication control unit 61 causes the correction parameters transmitted from the service providing server 200 to be received.

[0039] When the user performs a predetermined input operation on the projector 10, the communication control unit 61 controls the communication interface 70 to transmit the imaging data CD stored in the storage device 50 to the service providing server 200. The communication control unit 61 assigns a shooting time to the imaging data CD. The shooting time is the time when the imaging unit 20 captured the projection image PG. The communication control unit 61 transmits the imaging data CD with the shooting time assigned to it to the service providing server 200. The communication control unit 61 may also transmit audio data stored together with the imaging data CD.

[0040] After transmitting the imaging data CD, the communication control unit 61 receives correction parameters from the service providing server 200. The correction parameters are data related to the imaging data CD. The communication control unit 61 controls the communication interface 70 to transmit the correction parameters to the correction control unit 63.

[0041] The correction control unit 63 obtains correction parameters based on the imaging data CD and performs correction using the correction parameters. The correction parameters are used when correcting the display mode of the projection image PG including the image quality, size, etc. of the projection image PG projected on the projection surface SC. The correction control unit 63 corrects the image data using the correction parameters transmitted from the service providing server 200 based on the imaging data CD. As an example, the correction control unit 63 replaces a preset mode setting value MV with the correction parameters. The correction control unit 63 may correct the preset mode setting value MV using the correction parameters. The correction control unit 63 corrects the mode setting value MV using the correction parameters. The correction control unit 63 may add a change time to the corrected mode setting value MV. The change time is added to the correction parameter transmitted from the service providing server 200. The correction control unit 63 transmits the corrected mode setting value MV to the image processing unit 65.

[0042] The image processing unit 65 corrects the image data using a preset mode setting value MV or a corrected mode setting value MV. The image processing unit 65 receives image data transmitted from the image providing device 100. The image processing unit 65 corrects the image data based on the preset mode setting value MV. The image processing unit 65 reads out the mode setting value MV corresponding to the mode setting from the storage device 50. The image processing unit 65 corrects the image data using the mode setting value MV. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC using the corrected image data. The image projection device 40 projects the projection image PG corresponding to the set color mode onto the projection surface SC.

[0043] When the image processing unit 65 receives the corrected mode setting value MV from the correction control unit 63, it corrects the image data using the corrected mode setting value MV. When the image processing unit 65 receives the mode setting value MV with the change time added, it corrects the image data corresponding to the projection image PG to be projected after the change time using the corrected mode setting value MV. The image processing unit 65 corrects the display mode of the projection image PG, i.e., the projection image PG, based on the correction parameters. The display mode includes the image quality and size of the projection image PG, playback sound accompanying the projection image PG, etc.

[0044] The communication interface 70 is an interface circuit that communicates with the image providing device 100, the service providing server 200, etc. The communication interface 70 connects to the image providing device 100, etc., by wire or wirelessly in accordance with a predetermined communication protocol. The communication interface 70 includes a wired connector, a wireless communication port, etc. The wired connector is an HDMI connector, a USB connector, a LAN (Local Area Network) connector, etc. The wireless communication port is a Wi-Fi communication port, a Bluetooth communication port, etc. Wi-Fi and Bluetooth are registered trademarks. The communication interface 70 transmits imaging data CD, etc. to the service providing server 200. The communication interface 70 receives correction parameters, etc. from the service providing server 200. The communication interface 70 receives image data, etc. from the image providing device 100.

[0045] The image providing device 100 is communicatively connected to the communication interface 70. The image providing device 100 transmits image data to the communication interface 70. The image providing device 100 transmits image data corresponding to the scene image SG to the communication interface 70 at predetermined time intervals.

[0046] The service providing server 200 receives the imaging data CD from the projector 10 via the communication network NW. The service providing server 200 performs various processes based on the imaging data CD. The service providing server 200 includes a server control device 210 and a server storage device 220.

[0047] The server control device 210 is a controller that controls the service providing server 200. As an example, the server control device 210 is a processor having a CPU. The server control device 210 is configured with one or more processors. The server control device 210 functions as a discrimination unit 211 and a parameter generation unit 213 by executing the image quality adjustment program AP. The server control device 210 may function as a functional unit other than the discrimination unit 211 and the parameter generation unit 213 by executing the image quality adjustment program AP.

[0048] The determination unit 211 identifies the video content VC corresponding to the imaging data CD and the scene image SG included in the video content VC. The determination unit 211 receives the imaging data CD transmitted from the projector 10. The determination unit 211 transmits the imaging data CD to the information providing server 300 via the communication network NW, and searches for the video content VC related to the scene image SG included in the imaging data CD. The determination unit 211 receives the search result from the information providing server 300. The determination unit 211 identifies the video content VC corresponding to the scene image SG included in the imaging data CD from the search result. Furthermore, the determination unit 211 identifies the scene image SG related to the imaging data CD from the multiple scene images SG included in the video content VC. The determination unit 211 identifies that the scene of the video content VC corresponding to the scene image SG is, for example, a climax.

[0049] After identifying the video content VC including the scene image SG included in the imaging data CD, the discrimination unit 211 acquires content information indicating an overview of the video content VC. The content information is the title, genre, language, cast, director, etc. of the video content VC. If the search result includes content information, the discrimination unit 211 acquires the content information from the search result. If the search result is, for example, the title of the video content VC, the discrimination unit 211 transmits the title as a search keyword to the information providing server 300 and performs a re-search. The discrimination unit 211 acquires the content information as a search result of the re-search.

[0050] After acquiring the content information, the discrimination unit 211 acquires evaluation information related to the identified video content VC. The discrimination unit 211 transmits the content information to the information providing server 300 as a search keyword. The information providing server 300 searches for evaluation information based on the content information. The evaluation information is a subjective evaluation, a playback image evaluation, a playback sound evaluation, etc. related to the video content VC. The subjective evaluation is an impression, evaluation, etc. of a viewer who has already viewed the identified video content VC. The subjective evaluation is an explanatory article on the video content VC written on a web page, a comment posted on an SNS, etc. The evaluation information may be information related to the entire video content VC, or an evaluation for each chapter CH or scene image SG. The evaluation information includes various text information. The text information is, for example, sentence information such as the explanatory article on the video content VC described above and a comment posted on an SNS. The evaluation information includes one or more extracted terms. The evaluation information corresponds to an example of related information. The extracted term corresponds to an example of a state index. The extracted term is an index indicating a scene of the video content VC. The information server 300 transmits the searched evaluation information to the determination unit 211. The determination unit 211 acquires the evaluation information.

[0051] The parameter generating unit 213 generates correction parameters based on the evaluation information. The parameter generating unit 213 receives the evaluation information including the extracted term from the determining unit 211. The parameter generating unit 213 reads out the conversion table CT from the server storage device 220. The parameter generating unit 213 determines correction parameters based on the extracted term and the conversion table CT. The correction parameters correspond to an example of correction information. Details of the conversion table CT will be described later. The service providing server 200 transmits the correction parameters to the projector 10.

[0052] The server storage device 220 stores various data, programs, etc. The server storage device 220 stores an image quality adjustment program AP. The server storage device 220 stores a conversion table CT. The server storage device 220 is composed of a volatile semiconductor memory such as a RAM, a non-volatile memory such as a ROM or a flash memory, etc. The server storage device 220 may have a magnetic memory such as a HDD (Hard Disk Drive).

[0053] The image quality adjustment program AP is software that causes the server control device 210 to operate as various functional units. The image quality adjustment program AP, when executed by the server control device 210, causes the server control device 210 to operate as various functional units.

[0054] The conversion table CT associates the evaluation information with image parameters, etc. The conversion table CT associates an extraction term included in the evaluation information with image parameters, etc. included in the correction parameters. The image parameters, etc. specify the display mode of the projection image PG. The conversion table CT corresponds to an example of correspondence information.

[0055] FIG. 3 shows an example of the conversion table CT. FIG. 3 shows the conversion table CT including an extracted term, an application range, a setting mode, a video parameter, and an audio parameter. The conversion table CT may include elements other than the extracted term, the application range, the setting mode, the video parameter, and the audio parameter. In the conversion table CT, elements other than the extracted term and the video parameter are set appropriately. The conversion table CT associates the extracted term with the video parameter.

[0056] The extracted terms are extracted from text information included in the evaluation information. The extracted terms are terms related to subjective evaluations and the like included in the text information. The extracted terms are set in advance and stored in a conversion table CT.

[0057] The application range indicates the range in which the video parameters etc. included in the correction parameters are used. The image processing unit 65 of the projector 10 can perform correction using the corrected mode setting value MV on image data relating to the entire or part of the projection image PG. The application range indicates the area in the projection image PG when the image processing unit 65 corrects the image data. The main character indicates, as an example, the range in which the main character appearing in the video content VC is displayed.

[0058] The setting mode indicates a mode corresponding to the extracted term. The setting mode is a name indicating a plurality of image parameters. The setting mode may be the same as or different from the color modes that can be set in the projector 10.

[0059] The image parameters indicate the setting values ​​of each setting item related to the image quality and image size of the projected image PG. The setting items shown in Fig. 3 are brightness, color tone, contrast, and image size. The image parameters may include setting items other than brightness, color tone, contrast, and image size. The image parameters correspond to an example of parameters.

[0060] Among the multiple setting items, the image size indicates the enlargement / reduction ratio of the projection image PG. The projector 10 can enlarge or reduce the projection image PG. The enlargement / reduction ratio of the projection image PG indicates the enlargement ratio or reduction ratio of the projection image PG. When the projector 10 acquires the correction parameters including the enlargement / reduction ratio of the projection image PG, it enlarges or reduces the projection image PG. The enlargement / reduction ratio of the projection image PG corresponds to an example of the enlargement / reduction ratio of the image. The enlargement / reduction ratio of the projection image PG is the ratio of the size of the projection image PG after the size of the projection image PG is changed to the size of the projection image PG before the size is changed. The unit of the enlargement / reduction ratio is, for example, %. The conversion table CT shown in FIG. 3 includes the enlargement / reduction ratio of the projection image PG as a setting item, but may include a size value of the projection image PG instead of the enlargement / reduction ratio. The size value of the projection image PG corresponds to an example of the size of the image. The conversion table CT may include at least one of the enlargement / reduction ratio of the projection image PG and the size value of the projection image PG. The size value of the projected image PG is expressed either by the vertical and horizontal dimensions of the projected image PG, or by the diagonal dimension of the projected image PG. The size value is, for example, in pixels.

[0061] The audio parameters are setting items related to the sound reproduced by the projector 10. The audio parameters shown in FIG. 3 indicate the correction ratio of the volume of the reproduced sound. When the projector 10 projects the projection image PG onto the projection surface SC, it outputs sound based on the reproduced sound data SD. The audio parameters correct the output sound. The audio parameters shown in FIG. 3 indicate the volume of the reproduced sound, but are not limited to this. The audio parameters may be values ​​that correct the balance between treble and bass of the reproduced sound, etc. The audio parameters correspond to an example of parameters.

[0062] The information providing server 300 performs image search, text search, etc., and transmits the search results to the service providing server 200. The information providing server 300 receives the imaging data CD. The information providing server 300 uses the imaging data CD to search for video content VC related to the imaging data CD. The information providing server 300 receives content information. The information providing server 300 searches for evaluation information of the video content VC using the content information as a search keyword.

[0063] Fig. 4 is a schematic diagram of a video content VC and imaging data CD. Fig. 4 is a schematic diagram of a plurality of scene images SG and playback sound data SD included in the video content VC. Fig. 4 shows one imaging data CD, but is not limited to this.

[0064] The video content VC includes a plurality of scene images SG and playback sound data SD corresponding to each of the plurality of scene images SG. The plurality of scene images SG may be associated with chapters CH.

[0065] The multiple scene images SG included in the video content VC are stored in the video content VC in chronological order: first scene image SG1, second scene image SG2, third scene image SG3, kth scene image SGk, nth scene image SGn, n+1th scene image SGn+1, and n+2th scene image SGn+2. Here, k is any integer. n is any integer greater than k.

[0066] The video content VC holds a plurality of scene images SG grouped together in chapters CH. The first scene image SG1, the second scene image SG2, and the third scene image SG3 shown in Fig. 4 are grouped together in the first chapter CH1. The nth scene image SGn, the n+1th scene image SGn+1, and the n+2nd scene image SGn+2 are grouped together in the mth chapter CHm, where m is any integer.

[0067] The playback sound data SD is divided into a plurality of data in time series. The playback sound data SD shown in Fig. 4 is divided into first playback sound data SD1, second playback sound data SD2, third playback sound data SD3, k-th playback sound data SDk, n-th playback sound data SDn, n+1-th playback sound data SDn+1, and n+2-th playback sound data SDn+2. The first playback sound data SD1 is associated with the first scene image SG1. The k-th playback sound data SDk is associated with the k-th scene image SGk.

[0068] The information providing server 300 searches for video content VC including a scene image SG that matches or approximately matches the imaging data CD. FIG. 4 shows that the imaging data CD and the k-th scene image SGk match or approximately match. The information providing server 300 identifies the k-th scene image SGk as the scene image SG related to the imaging data CD. The information providing server 300 identifies the video content VC including the k-th scene image SGk as a search result. The information providing server 300 may identify the video content VC using audio data associated with the imaging data CD.

[0069] The information providing server 300 transmits the title of the identified video content VC or content information including the title as a search result to the service providing server 200. The information providing server 300 may transmit the identified video content VC to the service providing server 200 as a search result in addition to the content information.

[0070] The information providing server 300 receives the content information as a search keyword from the service providing server 200. The information providing server 300 searches for the evaluation information using the content information as a search keyword. The information providing server 300 acquires the evaluation information including the extracted term as a search result. The information providing server 300 transmits the evaluation information to the service providing server 200.

[0071] Fig. 5 shows a control flow performed between the projector 10 and the service providing server 200. Fig. 5 shows, in a flowchart, a control flow for correcting the display mode of the projection image PG by correcting image data based on the captured image data CD.

[0072] In step S101, the projector 10 projects the projection image PG onto the projection surface SC. The projector 10 receives image data from the image providing device 100. The image data is data for projecting a scene image SG included in the video content VC as the projection image PG. The image data may be provided with playback sound data SD. The image processing unit 65 of the projector 10 receives the image data via the communication interface 70. The image processing unit 65 reads out a mode setting value MV corresponding to a preset color mode from the storage device 50. The color mode is preset by a user. The color mode may be an initial setting that is preset in the projector 10. The image processing unit 65 corrects the image data using the mode setting value MV. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC using the corrected image data.

[0073] After projecting the projection image PG onto the projection surface SC, the projector 10 generates imaging data CD in step S103. The imaging unit 20 captures the projection image PG projected onto the projection surface SC. The imaging unit 20 captures the projection image PG when triggered by an instruction from a user or the like. The imaging unit 20 captures the projection image PG to generate imaging data CD. The imaging unit 20 may capture the projection image PG at a predetermined time interval to generate a plurality of imaging data CD. When the imaging unit 20 generates the imaging data CD, the microphone 30 inputs ambient sound of the projector 10. The microphone 30 may generate audio data from the input ambient sound. The imaging unit 20 stores the imaging data CD in the storage device 50.

[0074] After generating the imaging data CD, the projector 10 transmits the imaging data CD to the service providing server 200 in step S105. The correction control unit 63 reads out the imaging data CD stored in the storage device 50. The correction control unit 63 may receive the imaging data CD transmitted from the imaging unit 20. The correction control unit 63 acquires the imaging data CD. The correction control unit 63 may receive audio data from the microphone 30. When the correction control unit 63 receives the audio data, it adds the audio data to the imaging data CD. The correction control unit 63 adds the imaging time at which the imaging unit 20 captured the projection image PG to the imaging data CD. The correction control unit 63 transmits the imaging data CD to the communication control unit 61. The communication control unit 61 causes the imaging data CD to be transmitted to the service providing server 200 via the communication interface 70. The communication interface 70 transmits the imaging data CD to the service providing server 200.

[0075] After the projector 10 transmits the imaging data CD to the service providing server 200, the service providing server 200 receives the imaging data CD in step S131. The determination unit 211 of the service providing server 200 acquires the imaging data CD by receiving the imaging data CD from the projector 10 via the communication network NW.

[0076] After acquiring the imaging data CD, the service providing server 200 acquires the evaluation information in step S141. The service providing server 200 communicates with the information providing server 300 to acquire the evaluation information. Details of the control flow between the service providing server 200 and the information providing server 300 are shown in FIG.

[0077] Fig. 6 shows a control flow performed between the service providing server 200 and the information providing server 300. Fig. 6 shows a control flow performed between step S131 and step S141 shown in Fig. 5. Fig. 6 shows, in a flowchart, a control flow in which the service providing server 200 acquires evaluation information from the information providing server 300.

[0078] After acquiring the imaging data CD, in step S133, the service providing server 200 transmits the imaging data CD to the information providing server 300. When audio data is added to the imaging data CD, the service providing server 200 transmits the imaging data CD to which the audio data has been added to the information providing server 300.

[0079] When the service providing server 200 transmits the imaging data CD to the information providing server 300, the information providing server 300 receives the imaging data CD in step S151. The information providing server 300 receives the imaging data CD from the service providing server 200 via the communication network NW.

[0080] After receiving the imaging data CD, the information providing server 300 searches for video content VC in step S153. The information providing server 300 performs an image search using the imaging data CD. The information providing server 300 searches for video content VC including a scene image SG that matches or approximately matches the imaging data CD. The information providing server 300 searches for the video content VC and identifies the video content VC including a scene image SG related to the imaging data CD.

[0081] After searching for the video content VC, the information providing server 300 acquires content information in step S155. The information providing server 300 acquires content information related to the identified video content VC. The information providing server 300 may acquire a k-th scene image SGk related to the imaging data CD shown in FIG.

[0082] After acquiring the content information, in step S157, the information providing server 300 transmits the content information to the service providing server 200. The information providing server 300 may transmit the k-th scene image SGk to the service providing server 200.

[0083] When the information providing server 300 transmits the content information to the service providing server 200, the service providing server 200 receives the content information in step S135. The service providing server 200 receives the content information from the information providing server 300 via the communication network NW. The service providing server 200 may receive the k-th scene image SGk.

[0084] After receiving the content information, the service providing server 200 transmits a search instruction for evaluation information to the information providing server 300 in step S137. In the control flow shown in Fig. 6, the search instruction for evaluation information is transmitted from the service providing server 200 to the information providing server 300 after receiving the content information, but is not limited to this. The search instruction for evaluation information may be transmitted when the service providing server 200 transmits the imaging data CD to the information providing server 300.

[0085] When the service providing server 200 transmits the search instruction for the evaluation information, the information providing server 300 receives the search instruction in step S159. The information providing server 300 receives the search instruction from the service providing server 200 via the communication network NW.

[0086] When the information providing server 300 receives the search instruction, in step S161, the information providing server 300 searches for evaluation information related to the specified video content VC. As an example, the information providing server 300 searches for evaluation information from a web page stored in the information providing server 300. The information providing server 300 may search for evaluation information from a web page stored in another web server connected via the communication network NW. The information providing server 300 searches for evaluation information related to the entire specified video content VC and evaluation information such as chapters CH and scene images SG included in the video content VC. The information providing server 300 acquires the evaluation information by searching for the evaluation information. When searching for evaluation information such as chapters CH and scene images SG included in the video content VC, the information providing server 300 may acquire scene image information indicating the corresponding scene images SG as a search result. The scene image information is composed of image data or text data. The scene image information corresponds to an example of image information.

[0087] After searching for the rating information, in step S163, the information providing server 300 transmits the searched rating information to the service providing server 200. The information providing server 300 transmits to the service providing server 200 rating information related to the entire identified video content VC, and rating information such as chapters CH and scene images SG included in the video content VC.

[0088] When the information providing server 300 transmits the rating information to the service providing server 200, the service providing server 200 acquires the rating information in step S141. The service providing server 200 receives the rating information from the information providing server 300, thereby acquiring the rating information.

[0089] As shown in Fig. 5, when the service providing server 200 acquires the evaluation information, a correction profile is generated in step S143. The parameter generating unit 213 of the service providing server 200 generates the correction profile based on the evaluation information. The evaluation information includes text information written on a web page or the like. The parameter generating unit 213 extracts extraction terms from the evaluation information. The parameter generating unit 213 reads out the conversion table CT from the server storage device 220. The parameter generating unit 213 determines correction parameters based on the extraction terms extracted from the evaluation information and the conversion table CT.

[0090] The parameter generating unit 213 generates a correction parameter for correcting the display mode of the entire video content VC. The parameter generating unit 213 may generate a correction parameter for correcting the display mode of a chapter CH or a scene image SG included in the video content VC.

[0091] When generating correction parameters for correcting the display mode of a chapter CH or a scene image SG included in the video content VC, the parameter generating unit 213 extracts evaluation information related to the chapter CH or the scene image SG. It is assumed that the first scene image SG1 and the second scene image SG2 shown in FIG. 4 constitute, for example, a scene of "sad". The parameter generating unit 213 acquires evaluation information related to the first scene image SG1 or a projection image PG based on the first scene image SG1. The parameter generating unit 213 acquires an extraction term from the evaluation information related to the first scene image SG1. The parameter generating unit 213 generates correction parameters for correcting at least the second scene image SG2 based on the extraction term. In other words, the parameter generating unit 213 acquires an extraction term from the evaluation information related to the k-th scene image SGk, and generates correction parameters for correcting the projection image PG of the k+1-th scene image SGk+1. It is preferable that the scene constituted by the k+1th scene image SGk+1 is the same as the scene constituted by the kth scene image SGk. The projection image PG based on the kth scene image SGk corresponds to an example of a first image. The projection image PG based on the k+1th scene image SGk+1 corresponds to an example of a second image. The projection image PG based on the k+1th scene image SGk+1 is a projection image projected after the projection image PG based on the kth scene image SGk. The projection image PG based on the k+1th scene image SGk+1 is a projection image projected immediately after the projection image PG based on the kth scene image SGk.

[0092] In order to correct the scene image SG that constitutes the same scene as the k-th scene image SGk, it is preferable to set a threshold value for the time from generating the correction parameters to applying the correction parameters. For example, when the result of acquiring the extracted terms from the evaluation information related to the first scene image SG1 is that the scene is "sad" while the scene constituted by the third scene image SG3 is actually "fun", the correction parameters based on the extracted terms extracted from the evaluation information related to the first scene image SG1 are inappropriate for the scene constituted by the third scene image SG3. By setting a threshold value for the time from generating the correction parameters to applying the correction parameters, it is possible to prevent the correction parameters from becoming inappropriate for the scene constituted by the third scene image SG3.

[0093] Also, one or more chapters CH may constitute one scene. For example, a first chapter CH1 and a second chapter (not shown) may constitute one scene. In this case, the parameter generation unit 213 acquires an extraction term from evaluation information related to a first scene image SG1 included in the first chapter CH1. The parameter generation unit 213 generates a correction parameter for correcting at least a scene image SG included in the second chapter based on the extraction term.

[0094] When generating correction parameters for correcting the display mode of a chapter CH or a scene image SG included in the video content VC, the parameter generation unit 213 extracts evaluation information related to the chapter CH or the scene image SG. The parameter generation unit 213 acquires evaluation information related to the scene image SG projected after the k-th scene image SGk shown in FIG. 4. As an example, the parameter generation unit 213 acquires evaluation information related to the m-th chapter CHm shown in FIG. 4. The parameter generation unit 213 acquires an extraction term from the evaluation information related to the m-th chapter CHm. The parameter generation unit 213 generates correction parameters for correcting the n-th scene image SGn etc. included in the m-th chapter CHm. The parameter generation unit 213 acquires the time from the k-th scene image SGk to the n-th scene image SGn as the elapsed time. The parameter generation unit 213 generates correction parameters including the elapsed time.

[0095] After generating the correction profile, the service providing server 200 transmits the correction profile to the projector 10 in step S145. The service providing server 200 transmits the correction parameters to the communication interface 70 of the projector 10 via the communication network NW.

[0096] When the service providing server 200 transmits the correction profile to the projector 10, the projector 10 receives the correction profile in step S107. The communication interface 70 of the projector 10 receives the correction profile transmitted from the service providing server 200 via the communication network NW. The communication interface 70 transmits correction parameters to the image processing unit 65.

[0097] When the projector 10 receives the correction parameters, it corrects the image data in step S109. The image processing unit 65 of the projector 10 corrects the image data using the correction parameters. When the correction parameters include the elapsed time, the image processing unit 65 corrects the image data corresponding to the projection image PG projected after the elapsed time using the correction parameters.

[0098] After correcting the image data using the correction parameters, the projector 10 corrects the display mode of the projection image PG in step S111. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC based on the corrected image data. The image processing unit 65 corrects the display mode of the projection image PG by having the image projection device 40 project the projection image PG based on the image data corrected with the correction parameters.

[0099] When the correction parameter is data for correcting the display mode of the entire video content VC, the image processing unit 65 corrects the display mode of the scene image SG projected after receiving the correction parameter. When the correction parameter is data for correcting the display mode of the chapter CH or the scene image SG included in the video content VC, the image processing unit 65 corrects the display mode of the projection image PG projected after an elapsed time. As an example of correcting the display mode of the chapter CH, the image processing unit 65 corrects the display mode of the nth scene image SGn included in the mth chapter CHm. When the correction parameter is data for correcting the display mode of the partial image included in the scene image SG, the image processing unit 65 corrects the display mode of the partial image. As an example, the image processing unit 65 corrects the display mode of the partial image in which the main character included in the scene image SG is displayed.

[0100] The first image display system 1a includes a projector 10 capable of displaying a projection image PG, an imaging unit 20 that captures the projection image PG based on the kth scene image SGk while being displayed by the projector 10, and generates imaging data CD including the projection image PG based on the kth scene image SGk, a projector control device 60 that controls the projector 10, and a service providing server 200 that acquires the imaging data CD via a communication network NW. The service providing server 200 acquires evaluation information related to video content VC including the scene image SG related to the imaging data CD, and determines correction parameters for correcting the display mode of the projection image PG based on the k+1th scene image SGk+1 based on the evaluation information, and transmits the correction parameters to the projector control device 60. The projector control device 60 corrects the display mode based on the correction parameters. The projector 10 corrects the display mode of the projection image PG using correction parameters based on the evaluation information of the video content VC. The projector 10 can project the projection image PG suitable for the video content VC onto the projection surface SC.

[0101] The service providing server 200 acquires the evaluation information from the information providing server 300 via the communication network NW, and determines the correction parameters based on the evaluation information. The service providing server 200 can acquire various pieces of evaluation information. The image display system 1 can correct the display mode of the projection image PG by referring to the evaluation information.

[0102] The service providing server 200 identifies a scene image SG based on the evaluation information obtained from the information providing server 300, and determines correction parameters based on the identified scene image SG and an extracted term that is included in the evaluation information and indicates the scene image SG. The service providing server 200 determines the correction parameters based on the evaluation information, and therefore can correct the display mode of the projection image PG in response to various evaluations.

[0103] The evaluation information includes scene image information indicating the scene image SG and text information related to the scene image SG. The service providing server 200 extracts an extraction term based on the text information. The service providing server 200 can obtain the extracted terms related to the correction parameters. The service providing server 200 can correct the display mode of the projection image PG using the extracted terms.

[0104] The service providing server 200 stores a conversion table CT in which the extracted terms and the image parameters for specifying the display mode are associated with each other, and determines correction parameters based on the extracted terms included in the evaluation information and the conversion table CT. The service providing server 200 determines the correction parameters using the conversion table CT stored in advance, so that the load imposed when determining the correction parameters can be reduced.

[0105] The projector 10 has an image projection device 40 that projects the kth scene image SGk and the k+1st scene image SGk+1 as projected images PG onto the projection surface SC, and it is preferable that the image parameters include at least one of the size of the k+1st scene image SGk+1 projected onto the projection surface SC and the enlargement / reduction ratio of the k+1st scene image SGk+1. The projector 10 can change the size of the projection image PG projected onto the projection surface SC based on the evaluation information. By changing the size of the projection image PG, the projector 10 can add a performance suitable for the video content VC.

[0106] In the first embodiment, the first image display system 1a includes a projector 10, but is not limited thereto. A flat panel such as a liquid crystal panel or an organic EL (Electro Luminescence) panel may be used instead of the projector 10. When the first image display system 1a includes a flat panel, the imaging unit 20 and the microphone 30 are provided separately from the flat panel. It is preferable that the first image display system 1a includes the projector 10. The projector 10 can appropriately change the size of the projection image PG projected onto the projection surface SC.

[0107] Second embodiment The second embodiment shows an image display system 1 that corrects a projection image PG projected by a projector 10 using a correction profile transmitted from a service providing server 200. The projector 10 captures an image of a projection image PG projected on a projection surface SC using an imaging unit 20, and generates imaging data CD. The projector 10 transmits the imaging data CD to an image providing device 100. The image providing device 100 transmits the imaging data CD to the service providing server 200 via a communication network NW. The service providing server 200 generates a correction profile based on the imaging data CD. The service providing server 200 transmits the correction profile to the image providing device 100 via the communication network NW. The image providing device 100 transmits image data corrected using the correction profile to the projector 10, and corrects the display mode of the projection image PG projected on the projection surface SC.

[0108] FIG. 7 shows a schematic configuration of the image display system 1. FIG. 7 shows a schematic configuration of a second image display system 1b, which is an example of the image display system 1. The second image display system 1b includes a projector 10, an imaging unit 20, an image providing device 100, a service providing server 200, and an information providing server 300. The projector 10 and the image providing device 100 are communicatively connected via a LAN cable 160. The image providing device 100, the service providing server 200, and the information providing server 300 are communicatively connected via a communication network NW. The second image display system 1b may include a microphone 30. The second image display system 1b corresponds to an example of a display system.

[0109] FIG. 8 shows a block configuration of the image display system 1. FIG. 8 shows a block configuration of a second image display system 1b, which is an example of the image display system 1. The projector 10 is connected to the image providing device 100 by wired connection via a LAN cable 160. The projector 10 may be connected to the image providing device 100 wirelessly. The projector 10 is not connected to the service providing server 200 via the communication network NW. The projector 10 is connected to the service providing server 200 via the image providing device 100. The service providing server 200 and the information providing server 300 shown in FIG. 8 have the same functions as the service providing server 200 and the information providing server 300 shown in FIG. 2.

[0110] The projector 10 includes an imaging unit 20, a microphone 30, an image projection device 40, a storage device 50, a projector control device 60, and a communication interface 70. The imaging unit 20, the microphone 30, the image projection device 40, and the communication interface 70 shown in Fig. 8 have the same configurations as the imaging unit 20, the microphone 30, the image projection device 40, and the communication interface 70 shown in Fig. 2.

[0111] The storage device 50 shown in Fig. 8 has the same configuration as the storage device 50 shown in Fig. 2. The contents stored in the storage device 50 shown in Fig. 8 are different from those stored in the storage device 50 shown in Fig. 2. The storage device 50 shown in Fig. 8 does not store a mode setting value MV.

[0112] 8 executes the control program CP to function as a communication control unit 61 and an image adjustment unit 67. The projector control device 60 shown in FIG. 8 does not function as the correction control unit 63 and the image processing unit 65 shown in FIG.

[0113] The image adjustment unit 67 adjusts image data transmitted from the image providing device 100. The image adjustment unit 67 performs various corrections resulting from the settings of the projector 10, such as keystone distortion correction and geometric distortion correction. The image adjustment unit 67 transmits the adjusted image data to the image projection device 40. The image adjustment unit 67 causes the image projection device 40 to project the projection image PG.

[0114] The image providing device 100 transmits image data corrected using the mode setting value MV to the projector 10. The image providing device 100 controls the projector 10 by transmitting the corrected image data to the projector 10. The image providing device 100 includes a PC control device 110 and a PC storage device 120. The image providing device 100 corresponds to an example of a control device.

[0115] The PC control device 110 is a controller circuit that controls each unit of the image providing device 100. As an example, the PC control device 110 is a processor having a CPU. The PC control device 110 is composed of one or more processors. The PC control device 110 functions as various functional units. The PC control device 110 functions as a PC correction control unit 111 and a PC image processing unit 113.

[0116] The PC correction control unit 111 controls various parameters for correcting image data. The PC correction control unit 111 receives the imaging data CD from the projector 10. The PC correction control unit 111 transmits the imaging data CD to the service providing server 200 via the communication network NW. The PC correction control unit 111 receives correction parameters based on the imaging data CD from the service providing server 200. The PC correction control unit 111 transmits the received correction parameters to the PC image processing unit 113. The PC correction control unit 111 transmits the correction parameters to the PC image processing unit 113, thereby causing the PC image processing unit 113 to correct the image data based on the correction parameters. The PC correction control unit 111 has a function similar to that of the correction control unit 63 shown in FIG. 2.

[0117] The PC image processing unit 113 corrects the image data using the mode setting value MV. The PC image processing unit 113 receives information related to the mode setting from the projector 10. The PC image processing unit 113 reads out the mode setting value MV corresponding to the color mode set in the projector 10 from the PC storage device 120. The PC image processing unit 113 corrects the image data using the mode setting value MV. The PC image processing unit 113 transmits the corrected image data to the projector 10. By transmitting the corrected image data, the PC image processing unit 113 causes the projector 10 to project a projection image PG in a display mode corresponding to the set color mode.

[0118] When the PC image processing unit 113 receives the correction parameters, it corrects the image data based on the correction parameters. The PC image processing unit 113 transmits the image data corrected based on the correction parameters to the projector 10. By transmitting the image data corrected based on the correction parameters, the PC image processing unit 113 causes the projector 10 to project a projection image PG in a display mode suitable for the video content VC. The PC image processing unit 113 has a function similar to that of the image processing unit 65 shown in FIG. 2.

[0119] The PC storage device 120 stores various data, programs, etc. The PC storage device 120 is composed of a volatile semiconductor memory such as RAM, a non-volatile memory such as ROM, a flash memory, etc. The PC storage device 120 stores image data for displaying a scene image SG included in the video content VC. The image providing device 100 may acquire the video content VC via a communication network NW. The PC storage device 120 stores playback sound data SD included in the video content VC. The PC storage device 120 may store content information related to the video content VC. The PC storage device 120 stores a mode setting value MV. The mode setting value MV stored in the PC storage device 120 is the same as the mode setting value MV stored in the storage device 50 shown in FIG. 2.

[0120] Fig. 9 shows a control flow performed by the projector 10, the image providing device 100, and the service providing server 200. Fig. 9 shows, in a flowchart, a control flow for correcting the display mode of the projected image PG by correcting image data based on the captured data CD.

[0121] In step S201, the image providing device 100 transmits image data to the projector 10. The image providing device 100 acquires image data for displaying a scene image SG included in the video content VC from an external device. The image providing device 100 receives information related to mode setting from the projector 10 in advance. The image providing device 100 reads out a mode setting value MV corresponding to the set color mode from the PC storage device 120. The image providing device 100 corrects the image data using the mode setting value MV. The image providing device 100 transmits the image data corrected using the mode setting value MV to the projector 10.

[0122] When the image providing device 100 transmits the image data to the projector 10, the projector 10 receives the image data in step S231. The communication interface 70 of the projector 10 receives the image data transmitted from the image providing device 100. The communication interface 70 transmits the image data to the projector control device 60. The image adjustment unit 67 of the projector control device 60 performs various adjustments on the image data. The image adjustment unit 67 transmits the image data to the image projection device 40.

[0123] After receiving the image data, the projector 10 projects the projection image PG onto the projection surface SC in step S233. The image projection device 40 receives the image data from the image adjustment unit 67. The image projection device 40 projects the projection image PG onto the projection surface SC based on the image data. The image projection device 40 displays the projection image PG on the projection surface SC by projecting the projection image PG onto the projection surface SC. The projector 10 outputs sound from a speaker (not shown) based on the playback sound data SD.

[0124] After projecting the projection image PG onto the projection surface SC, the projector 10 generates imaging data CD in step S235. The imaging unit 20 captures the projection image PG projected onto the projection surface SC. The imaging unit 20 captures the projection image PG when triggered by an instruction from a user or the like. The imaging unit 20 captures the projection image PG to generate imaging data CD. The imaging unit 20 may capture the projection image PG at a predetermined time interval to generate a plurality of imaging data CD. When the imaging unit 20 generates the imaging data CD, the microphone 30 inputs ambient sound of the projector 10. The microphone 30 may input the input ambient sound to generate audio data.

[0125] After generating the imaging data CD, the projector 10 transmits the imaging data CD to the image providing device 100 in step S237. The communication control unit 61 adds the imaging time when the imaging unit 20 captured the projection image PG to the imaging data CD. When the microphone 30 is generating audio data, the communication control unit 61 adds the audio data to the imaging data CD. The projector 10 transmits the imaging data CD to the image providing device 100 via the communication interface 70.

[0126] When the projector 10 transmits the imaging data CD to the image providing device 100, the image providing device 100 receives the imaging data CD in step S203. The image providing device 100 may temporarily store the imaging data CD in the PC storage device 120.

[0127] After receiving the imaging data CD, the image providing device 100 transmits the imaging data CD to the service providing server 200 in step S205. The image providing device 100 transmits the imaging data CD to the service providing server 200 via the communication network NW. When transmitting the imaging data CD to the service providing server 200, the image providing device 100 transmits a parameter generation instruction. The parameter generation instruction is an instruction to cause the service providing server 200 to generate correction parameters. The image providing device 100 may transmit content information related to the video content VC to the service providing server 200.

[0128] When the image providing device 100 transmits the imaging data CD to the service providing server 200, the service providing server 200 receives the imaging data CD in step S251. The service providing server 200 receives the imaging data CD and a parameter generation instruction from the image providing device 100 via the communication network NW. When the image providing device 100 transmits content information to the service providing server 200, the service providing server 200 receives the content information.

[0129] When the service providing server 200 receives the imaging data CD, in step S253, it identifies a scene image SG and video content VC. The service providing server 200 transmits the imaging data CD to the information providing server 300. The service providing server 200 uses the information providing server 300 to identify the video content VC and the scene image SG related to the imaging data CD. When the service providing server 200 receives the content information from the image providing device 100, it performs an image search using the imaging data CD. By performing the image search, the service providing server 200 identifies a scene image SG that matches or approximately matches the imaging data CD.

[0130] After identifying the scene image SG and video content VC, the service providing server 200 acquires rating information in step S255. The service providing server 200 transmits a search instruction for rating information to the information providing server 300. The service providing server 200 receives the search information searched for by the search instruction from the information providing server 300. The service providing server 200 acquires rating information related to the entire video content VC, and rating information for chapters CH, scene images SG, etc. included in the video content VC.

[0131] When the service providing server 200 acquires the evaluation information, in step S257, the service providing server 200 generates a correction profile. The parameter generating unit 213 of the service providing server 200 generates a correction profile based on the evaluation information. The evaluation information includes text information written on a web page or the like. The parameter generating unit 213 extracts an extraction term from the evaluation information. The parameter generating unit 213 reads out the conversion table CT from the server storage device 220. The parameter generating unit 213 determines a correction parameter based on the extraction term extracted from the evaluation information and the conversion table CT. The parameter generating unit 213 generates a correction parameter for correcting the display mode of the entire video content VC. The parameter generating unit 213 may generate a correction parameter for correcting the display mode of a chapter CH or a scene image SG included in the video content VC.

[0132] After generating the correction profile, in step S259, the service providing server 200 transmits the correction profile to the image providing device 100. The service providing server 200 transmits the correction parameters to the image providing device 100 via the communication network NW.

[0133] When the service providing server 200 transmits the correction profile to the image providing device 100, the image providing device 100 receives the correction profile in step S207. The PC control device 110 of the image providing device 100 receives the correction profile from the service providing server 200 via the communication network NW.

[0134] Upon receiving the correction parameters, the image providing device 100 corrects the image data in step S209. The PC image processing unit 113 of the image providing device 100 corrects the image data using the correction parameters. When the correction parameters include an elapsed time, the PC image processing unit 113 uses the correction parameters to correct the image data corresponding to the projection image PG projected after the elapsed time. The image providing device 100 corrects the display mode of the projection image PG projected by the projector 10 by correcting the image data based on the correction parameters.

[0135] After correcting the image data, the image providing device 100 transmits the image data to the projector 10 in step S211. The image providing device 100 transmits the image data corrected using the correction parameters to the communication interface 70 via the LAN cable 160.

[0136] When the image providing device 100 transmits the image data, the projector 10 receives the image data in step S239. The communication interface 70 receives the image data corrected using the correction parameters.

[0137] After receiving the image data, the projector 10 corrects the display mode of the projection image PG in step S241. The image adjustment unit 67 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC based on the corrected image data. The image adjustment unit 67 corrects the display mode of the projection image PG by having the image projection device 40 project the projection image PG based on the image data corrected using the correction parameters.

[0138] The second image display system 1b includes a projector 10 capable of displaying a projection image PG, an imaging unit 20 that captures the projection image PG based on the kth scene image SGk while being displayed by the projector 10, and generates imaging data CD including the projection image PG based on the kth scene image SGk, an image providing device 100 that controls the projector 10, and a service providing server 200 that acquires the imaging data CD via a communication network NW. The service providing server 200 acquires evaluation information related to video content VC including the scene image SG related to the imaging data CD, and determines correction parameters for correcting the display mode of the projection image PG based on the k+1th scene image SGk+1 based on the evaluation information, and transmits the correction parameters to the image providing device 100. The image providing device 100 corrects the display mode based on the correction parameters. The image providing device 100 corrects the display mode of the projection image PG using correction parameters based on the evaluation information of the video content VC. The image providing device 100 can project the projection image PG suited to the video content VC onto the projection surface SC.

[0139] Third embodiment The third embodiment illustrates an image display system 1 that corrects a projection image PG projected by a projector 10 using a correction profile. The projector 10 transmits imaging data CD captured by an imaging unit 20 to a service providing server 200 via a communication network NW. The service providing server 200 acquires evaluation information based on the imaging data CD. The service providing server 200 transmits the evaluation information to the projector 10 via the communication network NW. The projector 10 generates correction parameters based on the evaluation information. The projector 10 corrects the image data based on the correction parameters. The projector 10 corrects the display mode of the projection image PG by correcting the image data.

[0140] FIG. 10 shows a schematic configuration of the image display system 1. FIG. 10 shows a schematic configuration of a third image display system 1c which is an example of the image display system 1. The third image display system 1c includes a projector 10, an imaging unit 20, an image providing device 100, a service providing server 200, and an information providing server 300. The projector 10 and the image providing device 100 are connected via a video cable 150. The projector 10, the service providing server 200, and the information providing server 300 are communicatively connected via a communication network NW. The third image display system 1c may include a microphone 30. The third image display system 1c corresponds to an example of a display system.

[0141] 11 shows a block configuration of the image display system 1. FIG. 11 shows a block configuration of a third image display system 1c which is an example of the image display system 1. The projector 10, the service providing server 200, and the information providing server 300 are connected via a communication network NW. The communication interface 70 of the projector 10 is connected to the image providing device 100. The image providing device 100 and the information providing server 300 shown in FIG. 11 have the same functions as the image providing device 100 and the information providing server 300 shown in FIG. 2.

[0142] The projector 10 includes an imaging unit 20, a microphone 30, an image projection device 40, a storage device 50, a projector control device 60, and a communication interface 70. The imaging unit 20, the microphone 30, the image projection device 40, and the communication interface 70 shown in Fig. 11 have the same configurations as the imaging unit 20, the microphone 30, the image projection device 40, and the communication interface 70 shown in Fig. 2.

[0143] The storage device 50 shown in Fig. 11 has the same configuration as the storage device 50 shown in Fig. 2. The contents stored in the storage device 50 shown in Fig. 11 are different from those stored in the storage device 50 shown in Fig. 2. The storage device 50 shown in Fig. 11 stores a conversion table CT.

[0144] The correction control unit 63 functioning in the projector control device 60 generates correction parameters based on the imaging data CD. The correction control unit 63 transmits the imaging data CD to the service providing server 200. The correction control unit 63 receives evaluation information based on the imaging data CD from the service providing server 200. The correction control unit 63 generates correction parameters based on the evaluation information. The correction control unit 63 functions as the parameter generation unit 213 shown in FIG. 2.

[0145] The service providing server 200 receives the imaging data CD via the communication network NW. The determination unit 211 of the service providing server 200 acquires content information related to the video content VC using the imaging data CD. The service providing server 200 identifies the video content VC including a scene image SG that matches or approximately matches the imaging data CD. The determination unit 211 acquires evaluation information from the information providing server 300 using the content information related to the video content VC. The determination unit 211 transmits the evaluation information to the projector 10 via the communication network NW.

[0146] Fig. 12 shows a control flow performed between the projector 10 and the service providing server 200. Fig. 12 shows, in a flowchart, a control flow for correcting the display mode of the projection image PG by correcting image data using correction parameters generated by the projector 10.

[0147] In step S301, the projector 10 projects the projection image PG onto the projection surface SC. The projector 10 receives image data from the image providing device 100. The image data is data for projecting a scene image SG included in the video content VC as the projection image PG. The image data may be provided with playback sound data SD. The image processing unit 65 of the projector 10 receives the image data via the communication interface 70. The image processing unit 65 reads out a mode setting value MV corresponding to a preset color mode from the storage device 50. The color mode is preset by a user. The color mode may be an initial setting that is preset in the projector 10. The image processing unit 65 corrects the image data using the mode setting value MV. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC using the corrected image data.

[0148] After projecting the projection image PG onto the projection surface SC, the projector 10 generates imaging data CD in step S303. The imaging unit 20 captures the projection image PG projected onto the projection surface SC. The imaging unit 20 captures the projection image PG when triggered by an instruction from a user or the like. The imaging unit 20 captures the projection image PG to generate imaging data CD. The imaging unit 20 may capture the projection image PG at a predetermined time interval to generate a plurality of imaging data CD. When the imaging unit 20 generates the imaging data CD, the microphone 30 inputs ambient sound of the projector 10. The microphone 30 may generate audio data from the input ambient sound. The imaging unit 20 stores the imaging data CD in the storage device 50.

[0149] After generating the imaging data CD, the projector 10 transmits the imaging data CD to the service providing server 200 in step S305. The correction control unit 63 reads out the imaging data CD stored in the storage device 50. The correction control unit 63 may receive the imaging data CD transmitted from the imaging unit 20. The correction control unit 63 acquires the imaging data CD. The correction control unit 63 may receive audio data from the microphone 30. When the correction control unit 63 receives the audio data, it adds the audio data to the imaging data CD. The correction control unit 63 adds the imaging time at which the imaging unit 20 captured the projection image PG to the imaging data CD. The correction control unit 63 transmits the imaging data CD to the communication control unit 61. The communication control unit 61 causes the imaging data CD to be transmitted to the service providing server 200 via the communication interface 70. The communication interface 70 transmits the imaging data CD to the service providing server 200.

[0150] After the projector 10 transmits the imaging data CD to the service providing server 200, the service providing server 200 receives the imaging data CD in step S331. The determination unit 211 of the service providing server 200 acquires the imaging data CD by receiving the imaging data CD from the projector 10 via the communication network NW.

[0151] After acquiring the imaging data CD, the service providing server 200 acquires the evaluation information in step S333. The service providing server 200 communicates with the information providing server 300 to acquire the evaluation information. The service providing server 200 acquires the evaluation information by executing, as an example, the control flow shown in Fig. 6 together with the information providing server 300.

[0152] Upon acquiring the evaluation information, the service providing server 200 transmits the evaluation information to the projector 10 in step S335. The service providing server 200 transmits the evaluation information to the communication interface 70 of the projector 10 via the communication network NW.

[0153] When the service providing server 200 transmits the evaluation information to the projector 10, the projector 10 receives the evaluation information in step S307. The communication interface 70 of the projector 10 receives the evaluation information transmitted from the service providing server 200 via the communication network NW. The communication interface 70 transmits the evaluation information to the correction control unit 63. The correction control unit 63 receives the evaluation information.

[0154] Upon receiving the evaluation information, the projector 10 generates a correction profile in step S309. The correction control unit 63 of the projector 10 generates the correction profile based on the evaluation information. The evaluation information includes text information written on a web page or the like. The correction control unit 63 extracts extraction terms from the evaluation information. The correction control unit 63 reads out the conversion table CT from the storage device 50. The correction control unit 63 determines correction parameters based on the extraction terms extracted from the evaluation information and the conversion table CT.

[0155] The correction control unit 63 generates correction parameters for correcting the display mode of the entire video content VC. The correction control unit 63 may generate correction parameters for correcting the display mode of a chapter CH or a scene image SG included in the video content VC.

[0156] After generating the correction parameters, the projector 10 corrects the image data in step S311. The correction control unit 63 transmits the correction parameters to the image processing unit 65. The image processing unit 65 receives the correction parameters. The image processing unit 65 corrects the image data using the correction parameters. When the correction parameters include an elapsed time, the image processing unit 65 corrects the image data corresponding to the projection image PG projected after the elapsed time using the correction parameters.

[0157] After correcting the image data using the correction parameters, the projector 10 corrects the display mode of the projection image PG in step S313. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC based on the corrected image data. The image processing unit 65 corrects the display mode of the projection image PG by having the image projection device 40 project the projection image PG based on the image data corrected using the correction parameters.

[0158] The third image display system 1c includes a projector 10 capable of displaying a scene image SG as a projection image PG, an imaging unit 20 that captures the scene image SG displayed by the projector 10 and generates imaging data CD including the scene image SG, a projector control device 60 that controls the projector 10, and a service providing server 200 that acquires the imaging data CD via a communication network NW. The service providing server 200 acquires evaluation information related to the scene image SG that constitutes the scene image SG included in the imaging data CD, and transmits the evaluation information to the projector control device 60. The projector control device 60 determines correction parameters for correcting the display mode of the scene image SG that is displayed after the scene image SG captured by the projector 10 based on the evaluation information, and corrects the display mode based on the correction parameters. The projector 10 corrects the display mode of the projection image PG using correction parameters based on the evaluation information of the video content VC. The projector 10 can project the projection image PG suited to the video content VC onto the projection surface SC.

[0159] Fourth embodiment The fourth embodiment illustrates an image display system 1 that corrects a projection image PG projected by a projector 10 using a correction profile. The projector 10 transmits a search instruction including imaging data CD captured by an imaging unit 20, etc., to an information providing server 300 via a communication network NW. The information providing server 300 acquires content information, evaluation information, etc. in response to the search instruction. The information providing server 300 transmits the evaluation information to the projector 10 via the communication network NW. The projector 10 generates correction parameters based on the evaluation information. The projector 10 corrects image data based on the correction parameters. The projector 10 corrects the display mode of the projection image PG by correcting the image data.

[0160] FIG. 13 shows a schematic configuration of the image display system 1. FIG. 13 shows a schematic configuration of a fourth image display system 1d, which is an example of the image display system 1. The fourth image display system 1d includes a projector 10, an imaging unit 20, an image providing device 100, and an information providing server 300. The projector 10 and the image providing device 100 are connected via a video cable 150. The projector 10 and the information providing server 300 are communicably connected via a communication network NW. The fourth image display system 1d may include a microphone 30. The fourth image display system 1d may be connected to a plurality of information providing servers 300. The fourth image display system 1d corresponds to an example of a display system. The information providing server 300 corresponds to an example of a server.

[0161] 14 shows a block configuration of the image display system 1. FIG. 14 shows a block configuration of a fourth image display system 1d which is an example of the image display system 1. The projector 10 and the information providing server 300 are connected via a communication network NW. The communication interface 70 of the projector 10 is connected to the image providing device 100. The image providing device 100 and the information providing server 300 shown in FIG. 14 have the same functions as the image providing device 100 and the information providing server 300 shown in FIG. 2.

[0162] The projector 10 includes an imaging unit 20, a microphone 30, an image projection device 40, a storage device 50, a projector control device 60, and a communication interface 70. The imaging unit 20, the microphone 30, the image projection device 40, and the communication interface 70 shown in Fig. 14 have the same configurations as the imaging unit 20, the microphone 30, the image projection device 40, and the communication interface 70 shown in Fig. 2.

[0163] The storage device 50 shown in Fig. 14 has the same configuration as the storage device 50 shown in Fig. 2. The contents stored in the storage device 50 shown in Fig. 14 are different from those stored in the storage device 50 shown in Fig. 2. The storage device 50 shown in Fig. 14 stores a conversion table CT.

[0164] The correction control unit 63 functioning in the projector control device 60 generates correction parameters based on the imaging data CD. The correction control unit 63 transmits the imaging data CD to the information providing server 300. The correction control unit 63 causes the information providing server 300 to perform an image search using the imaging data CD. The information providing server 300 searches for video content VC including a scene image SG that matches or approximately matches the imaging data CD, and identifies the video content VC. The information providing server 300 acquires content information related to the identified video content VC. The information providing server 300 transmits the content information to the projector 10. The correction control unit 63 receives the content information.

[0165] The correction control unit 63 transmits an evaluation search instruction to the information providing server 300, using text information included in the content information as a search keyword. The information providing server 300 receives the evaluation search instruction. The information providing server 300 executes a search using the text information as a search keyword and acquires evaluation information. The information providing server 300 transmits the evaluation information to the projector 10. The correction control unit 63 receives the evaluation information. The correction control unit 63 generates correction parameters based on the evaluation information. The correction control unit 63 functions as the discrimination unit 211 and the parameter generation unit 213 shown in FIG. 2.

[0166] Fig. 15 shows a control flow performed between the projector 10 and the information providing server 300. Fig. 15 shows, in a flowchart, a control flow in which the projector 10 instructs the information providing server 300 to perform various searches and corrects the display mode of the projection image PG based on the search results.

[0167] In step S401, the projector 10 projects the projection image PG onto the projection surface SC. The projector 10 receives image data from the image providing device 100. The image data is data for projecting a scene image SG included in the video content VC as the projection image PG. The image data may be provided with playback sound data SD. The image processing unit 65 of the projector 10 receives the image data via the communication interface 70. The image processing unit 65 reads out a mode setting value MV corresponding to a preset color mode from the storage device 50. The color mode is preset by the user. The color mode may be an initial setting that is preset in the projector 10. The image processing unit 65 corrects the image data using the mode setting value MV. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC using the corrected image data.

[0168] After projecting the projection image PG onto the projection surface SC, the projector 10 generates imaging data CD in step S403. The imaging unit 20 captures the projection image PG projected onto the projection surface SC. The imaging unit 20 captures the projection image PG when triggered by an instruction from a user or the like. The imaging unit 20 captures the projection image PG to generate imaging data CD. The imaging unit 20 may capture the projection image PG at a predetermined time interval to generate a plurality of imaging data CD. When the imaging unit 20 generates the imaging data CD, the microphone 30 inputs ambient sound of the projector 10. The microphone 30 may generate audio data from the input ambient sound. The imaging unit 20 stores the imaging data CD in the storage device 50.

[0169] After generating the imaging data CD, the projector 10 transmits a content search instruction to the information providing server 300 in step S405. The correction control unit 63 reads out the imaging data CD stored in the storage device 50. The correction control unit 63 may receive the imaging data CD transmitted from the imaging unit 20. The correction control unit 63 acquires the imaging data CD. The correction control unit 63 may receive audio data from the microphone 30. When the correction control unit 63 receives the audio data, it adds the audio data to the imaging data CD. The correction control unit 63 adds the imaging time when the imaging unit 20 captured the projection image PG to the imaging data CD. The correction control unit 63 transmits the content search instruction and the imaging data CD to the communication control unit 61. The content search instruction is an instruction to search for content information related to the video content VC including the scene image SG related to the imaging data CD. The communication control unit 61 causes the content search instruction and the imaging data CD to be transmitted to the information providing server 300 via the communication interface 70. The communication interface 70 transmits a content search instruction and the imaging data CD to the information server 300 .

[0170] When the projector 10 transmits a content search instruction to the information providing server 300, the information providing server 300 receives the content search instruction in step S431. The information providing server 300 receives the content search instruction and the imaging data CD via the communication network NW.

[0171] After receiving the content search instruction, the information providing server 300 acquires content information in step S433. The information providing server 300 performs an image search using the imaging data CD. The information providing server 300 searches for video content VC including a scene image SG that matches or approximately matches the imaging data CD. The information providing server 300 searches for video content VC and identifies video content VC including a scene image SG related to the imaging data CD. The information providing server 300 acquires content information related to the identified video content VC.

[0172] After acquiring the content information, in step S435, the information providing server 300 transmits the content information to the projector 10. The information providing server 300 transmits, as the content information, the scene image SG included in the video content VC, and text information indicating the title, details, etc. of the video content VC to the projector 10.

[0173] When the information providing server 300 transmits the content information to the projector 10, the projector 10 receives the content information in step S407. The communication interface 70 receives the content information from the information providing server 300 via the communication network NW. The communication interface 70 transmits the content information to the correction control unit 63. The correction control unit 63 receives the content information.

[0174] After receiving the content information, the projector 10 determines in step S409 whether the scene image SG and the captured image data CD included in the content information match. When the correction control unit 63 determines that the scene image SG and the captured image data CD match, the process proceeds to step S411 (S409: YES). When the correction control unit 63 determines that the scene image SG and the captured image data CD do not match, the process returns to step S405 (step S409: NO). The correction control unit 63 again transmits a content search instruction to the information providing server 300 to execute a search again.

[0175] In step S411, the projector 10 transmits a rating search instruction to the information providing server 300. The rating search instruction is an instruction to cause the information providing server 300 to search for rating information related to the video content VC. The projector 10 transmits the rating search instruction and content information to the information providing server 300. The projector 10 may transmit content information that has been subjected to partial extraction, processing, etc. to the information providing server 300.

[0176] When the projector 10 transmits the rating search instruction to the information providing server 300, the information providing server 300 receives the rating search instruction in step S437. The information providing server 300 receives the rating search instruction and the content information via the communication network NW.

[0177] After receiving the rating search instruction, the information providing server 300 acquires rating information in step S439. The information providing server 300 searches for rating information related to the video content VC. As an example, the information providing server 300 searches for rating information from a web page stored in the information providing server 300. The information providing server 300 may search for rating information from a web server connected via the communication network NW. The information providing server 300 searches for rating information related to the entire video content VC and rating information such as chapters CH and scene images SG included in the video content VC. The information providing server 300 acquires rating information by searching for rating information. When searching for rating information such as chapters CH and scene images SG included in the video content VC, the information providing server 300 may acquire scene image information indicating the corresponding scene images SG as a search result.

[0178] When the information providing server 300 acquires the evaluation information, in step S441, it transmits the evaluation information to the projector 10. The information providing server 300 transmits the evaluation information to the communication interface 70 of the projector 10 via the communication network NW.

[0179] When the information providing server 300 transmits the evaluation information to the projector 10, the projector 10 receives the evaluation information in step S413. The communication interface 70 of the projector 10 receives the evaluation information transmitted from the information providing server 300 via the communication network NW. The communication interface 70 transmits the evaluation information to the correction control unit 63. The correction control unit 63 receives the evaluation information.

[0180] Upon receiving the evaluation information, the projector 10 generates a correction profile in step S415. The correction control unit 63 of the projector 10 generates the correction profile based on the evaluation information. The evaluation information includes text information written on a web page or the like. The correction control unit 63 extracts extraction terms from the evaluation information. The correction control unit 63 reads out the conversion table CT from the storage device 50. The correction control unit 63 determines correction parameters based on the extraction terms extracted from the evaluation information and the conversion table CT.

[0181] The correction control unit 63 generates correction parameters for correcting the display mode of the entire video content VC. The correction control unit 63 may generate correction parameters for correcting the display mode of a chapter CH or a scene image SG included in the video content VC.

[0182] After generating the correction parameters, the projector 10 corrects the image data in step S417. The correction control unit 63 transmits the correction parameters to the image processing unit 65. The image processing unit 65 receives the correction parameters. The image processing unit 65 corrects the image data using the correction parameters. When the correction parameters include the elapsed time, the image processing unit 65 corrects the image data corresponding to the projection image PG projected after the elapsed time using the correction parameters.

[0183] After correcting the image data using the correction parameters, the projector 10 corrects the display mode of the projection image PG in step S419. The image processing unit 65 transmits the corrected image data to the image projection device 40. The image projection device 40 projects the projection image PG onto the projection surface SC based on the corrected image data. The image processing unit 65 corrects the display mode of the projection image PG by having the image projection device 40 project the projection image PG based on the image data corrected using the correction parameters.

[0184] The fourth image display system 1d includes a projector 10 capable of displaying a scene image SG as a projection image PG, an imaging unit 20 that captures the scene image SG displayed by the projector 10 and generates imaging data CD including the scene image SG, and a projector control device 60 that acquires the imaging data CD and controls the projector 10. The projector control device 60 acquires evaluation information related to the scene image SG that constitutes the scene image SG included in the imaging data CD, and corrects the display mode of the scene image SG that is displayed after the scene image SG captured by the projector 10 based on the evaluation information. The projector 10 corrects the display mode of the projection image PG using correction parameters based on the evaluation information of the video content VC. The projector 10 can project the projection image PG suited to the video content VC onto the projection surface SC.

[0185] Variations The display system may acquire the evaluation information using only the service providing server 200. That is, the display system may acquire the evaluation information without using the search results of the video content VC related to the scene image SG included in the imaging data CD provided by the information providing server 300. For example, the service providing server 200 may store in advance a plurality of pieces of evaluation information corresponding to a plurality of types of video content VC. Each of the plurality of pieces of evaluation information includes scene image information and text information.

[0186] The determination unit 211 of the service providing server 200 searches for video content VC related to the scene image SG included in the imaging data CD by comparing the imaging data CD acquired via the network NW with each of a plurality of pieces of evaluation information stored in advance. The determination unit 211 identifies the video content VC corresponding to the scene image SG included in the imaging data CD from the search result of the video content VC.

[0187] The following is a summary of this disclosure.

[0188] Appendix 1 The display system of the present disclosure includes a display device capable of displaying a first image, an imaging device that captures the image displayed by the display device and generates a captured image including the first image, a control device that controls the display device, and a server that acquires the captured image via a network, wherein the server acquires related information relating to a scene constituted by a first image included in the captured image, and determines correction information for correcting a display mode of a second image displayed by the display device after the first image based on the related information, transmits the correction information to the control device, and the control device corrects the display mode based on the correction information. The display device corrects the display mode of the image using the correction information based on the related information relating to the content, and is able to display an image suited to the scene.

[0189] Appendix 2 In the display system according to Supplementary Note 1, the server acquires the related information from a website via the network, and determines the correction information based on the related information. The server can obtain various related information, and the display system can correct the display mode of the image by referring to the related information.

[0190] Appendix 3 In the display system described in Appendix 2, the server identifies the scene based on the related information obtained from the website, and determines the correction information based on the identified scene and a status indicator that is included in the related information and indicates the scene. The server determines the correction information based on the related information, and therefore can correct the display mode of the image in response to various evaluations.

[0191] Appendix 4 A display system according to claim 3, wherein the related information includes image information showing the scene and text information relating to the scene, and the server extracts the status indicator based on the text information. The server can obtain a status indicator related to the correction information, and can use the status indicator to correct the display manner of the image.

[0192] Appendix 5 In a display system as described in Supplementary Note 3 or Supplementary Note 4, the server stores correspondence information in which the status indicator and a parameter for identifying the display mode are associated with each other, and determines the correction information based on the status indicator included in the related information and the correspondence information. Since the server determines the correction information using correspondence information stored in advance, the load imposed when determining the correction information can be reduced.

[0193] Appendix 6 A display system as described in Appendix 5, wherein the display device has a projection device that projects the first image and the second image onto a projection target, and the parameters include at least one of the size of the second image projected onto the projection target and a scaling ratio of the second image. The display device can change the size of the image projected onto the projection target based on the related information. By changing the size of the image, the display device can add a presentation suitable for the content.

[0194] Appendix 7 The display system of the present disclosure includes a display device capable of displaying a first image, an imaging device that captures the first image displayed by the display device and generates a captured image including the first image, a control device that controls the display device, and a server that acquires the captured image via a network, wherein the server acquires related information relating to a scene constituted by the first image included in the captured image and transmits the related information to the control device, and the control device determines correction information for correcting a display mode of a second image displayed by the display device after the first image based on the related information, and corrects the display mode based on the correction information. The display device corrects the display mode of the image using the correction information based on the related information relating to the content, and is able to display an image suited to the scene.

[0195] Appendix 8 The display system of the present disclosure includes a display device capable of displaying a first image, an imaging device that captures the first image displayed by the display device and generates a captured image including the first image, and a control device that acquires the captured image and controls the display device, wherein the control device acquires related information relating to a scene constituted by the first image included in the captured image, and corrects the display mode of a second image displayed by the display device after the first image based on the related information. The display device corrects the display mode of the image using the correction information based on the related information relating to the content, and is able to display an image suited to the scene. [Explanation of symbols]

[0196] 1...image display system, 1a...first image display system, 1b...second image display system, 1c...third image display system, 1d...fourth image display system, 10...projector, 20...imaging unit, 30...microphone, 40...image projection device, 41...light source, 43...light modulation device, 45...optical unit, 50...storage device, 60...projector control device, 61...communication control unit, 63...correction control unit, 65...image processing unit, 67...image adjustment unit, 70...communication interface, 100...image providing device, 110...PC control device, 111...PC correction control unit, 113...PC image processing unit, 120...PC storage device, 150...video cable, 160...LAN cable, 200...service providing server, 210...server control device, 211...discrimination unit, 213...parameter generation unit, 220...server storage device, 300...information providing server, AP...image quality adjustment program, CD...imaging data, CH...chapter, CH1...first chapter, CHm...mth chapter, CP...control program, CT...conversion table, MV...mode setting value, NW...communications network, PG...projected image, SC...projection surface, SD...played sound data, SD1...first played sound data, SD2...second played sound data, SD3...third played sound data, SDk...kth played sound data, SDk+1...k+1th played sound data, SDn...nth played sound data, SDn+1...n+1th played sound data, SDn+2...n+2nd played sound data, SG...scene image, SG1...first scene image, SG2...second scene image, SG3...third scene image, SGk...kth scene image, SGk+1...k+1th scene image, SGn...nth scene image, SGn+1...n+1th scene image, SGn+2...n+2nd scene image, VC...video content.

Claims

1. a display device capable of displaying a first image; an imaging device that captures the first image to be displayed by the display device and generates a captured image including the first image; A control device that controls the display device; a server that acquires the captured image via a network, The server, acquiring related information relating to a scene constituted by the first image included in the captured image; determining correction information for correcting a display mode of a second image displayed after the first image by the display device based on the related information; Transmitting the correction information to the control device; The control device corrects the display mode based on the correction information. Display system.

2. The server, acquiring the related information from a website via the network; determining the correction information based on the related information; The display system of claim 1 .

3. The server, Identifying the scene based on the related information obtained from the website; determining the correction information based on the identified scene and a state indicator that is included in the related information and indicates the scene; The display system of claim 2 .

4. The related information is image information showing the scene; text information relating to the scene; The server, extracting the condition indicator based on the text information; The display system of claim 3.

5. The server, storing correspondence information in which the status indicator and a parameter for specifying the display mode are associated with each other; determining the correction information based on the condition index included in the association information and the correspondence information; A display system according to claim 3 or 4.

6. the display device includes a projection device that projects the first image and the second image onto a projection target; the parameters include at least one of a size of the second image projected onto the projection target and a scaling ratio of the second image; The display system of claim 5.

7. a display device capable of displaying a first image; an imaging device that captures the first image to be displayed by the display device and generates a captured image including the first image; A control device that controls the display device; a server that acquires the captured image via a network, The server, acquiring related information relating to a scene constituted by the first image included in the captured image; Transmitting the related information to the control device; The control device includes: determining correction information for correcting a display mode of a second image displayed after the first image by the display device based on the related information; correcting the display mode based on the correction information; Display system.

8. a display device capable of displaying a first image; an imaging device that captures the first image to be displayed by the display device and generates a captured image including the first image; a control device that acquires the captured image and controls the display device; Equipped with The control device includes: acquiring related information relating to a scene constituted by the first image included in the captured image; correcting a display mode of a second image displayed after the first image on the display device based on the related information; Display system.

Images