Information processing apparatus, information processing method, and program

Abstract

To display various AR contents.SOLUTION: The information processing device 1 includes the reading unit 12 that reads the link information indicating the resource for acquiring the marker information, the marker information acquisition unit 171 that accesses the resource indicated by the link information and acquires the marker information, the recognition unit 172 that recognizes the marker specified by the marker information from the image captured by the imaging unit 13, and the display control unit 173 that superimposes the content corresponding to the marker on the image captured by the imaging unit 13 and displays the content on the display unit 14 when the recognition unit 172 recognizes the marker.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] There is known a technique for detecting a marker included in a captured image and displaying an AR (Augumented Reality) content corresponding to the marker (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-41126 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional technology, a recognized marker and the content displayed when the marker is recognized are associated in advance, and the AR content displayed based on a single marker is limited. This has resulted in a problem in that users are unable to enjoy a wide variety of AR content. Furthermore, in conventional technology, the user's operations to recognize the marker are cumbersome, which has resulted in a problem in that users are unable to easily enjoy the content.

[0005] The present invention has been made in consideration of these points, and aims to make it possible to display a variety of AR contents. [Means for solving the problem]

[0006] An information processing device of a first aspect of the present invention includes a reading unit that reads link information recorded in an NFC (Near Field Communication) tag, the link information indicating a resource for acquiring marker information for identifying a marker; a marker information acquisition unit that accesses the resource indicated by the link information and acquires the marker information; a display unit that displays an image captured by an imaging unit; a recognition unit that recognizes the marker identified by the marker information from within the image captured by the imaging unit; and a display control unit that, when the recognition unit recognizes the marker, causes content corresponding to the marker to be superimposed on the image captured by the imaging unit and displayed on the display unit.

[0007] The reading unit may read link information indicating a resource for acquiring information for recognizing a marker attached to the object to which the NFC tag is attached.

[0008] The marker information acquisition unit may acquire the marker information for identifying a plurality of different markers, the recognition unit may recognize each of the plurality of different markers, and the display control unit may display content corresponding to each of the plurality of markers.

[0009] When the display control unit has displayed content and is no longer able to recognize the marker, the recognition unit may further recognize the object to which the marker is attached, and the display control unit may display content corresponding to the marker based on the position of the object.

[0010] The information processing device may further include an environmental information acquisition unit that acquires environmental information indicating the surrounding environment of the information processing device, and the display control unit may display the content corresponding to the marker in a display manner based on the surrounding environment indicated by the environmental information.

[0011] The information processing device may further include an authentication information acquisition unit that acquires authentication information for authenticating a user who uses the information processing device, and an authentication processing unit that transmits the authentication information of the user who uses the information processing device to a management device that manages the display of content and queries the management device as to whether or not the content corresponding to the marker can be displayed, and the display control unit may display the content corresponding to the marker if it is possible to display the content.

[0012] The marker information associates information for identifying the marker with content to be displayed when the marker indicated by the marker information is recognized, and the display control unit may, when the recognition unit recognizes the marker, display the content associated with the marker in the marker information.

[0013] The information processing device may further include an environmental information acquisition unit that acquires environmental information indicating the environment surrounding the information processing device, wherein the marker information associates information for identifying the marker, the surrounding environment, and a display mode of content corresponding to the marker, the content being displayed in accordance with the surrounding environment, and when the recognition unit recognizes the marker, the display control unit may display the content corresponding to the marker in the display mode associated with the marker in the marker information.

[0014] The marker information associates information for identifying the marker with content link information indicating a resource for obtaining content to be displayed when the marker is recognized, and when the recognition unit recognizes the marker, the display control unit may display the content corresponding to the marker by accessing the resource indicated by the content link information associated with the marker in the marker information.

[0015] An information processing method according to a second aspect of the present invention includes the steps of: reading link information recorded in an NFC tag, the link information indicating a resource for acquiring marker information for identifying a marker; accessing the resource indicated by the link information and acquiring the marker information; recognizing the marker identified by the marker information from an image captured by an imaging unit; and, when the marker is recognized, displaying content corresponding to the marker on a display unit by superimposing it on the image captured by the imaging unit.

[0016] In a third aspect of the program of the present invention, a computer is caused to execute the steps of: reading link information recorded in an NFC tag, the link information indicating a resource for acquiring marker information for identifying a marker; accessing the resource indicated by the link information and acquiring the marker information; recognizing the marker identified by the marker information from an image captured by an imaging unit; and, when the marker is recognized, displaying content corresponding to the marker on a display unit by superimposing it on the image captured by the imaging unit. [Effects of the Invention]

[0017] According to the present invention, it is possible to display a variety of AR contents. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a diagram for explaining an overview of an information processing system S according to an embodiment. [Figure 2] 1 is a block diagram showing a configuration of an information processing device 1. FIG. [Figure 3] 10 is a diagram showing an example of a screen displayed by a display control unit 173. FIG. [Figure 4] 10 is a diagram showing an example of a screen displayed by a display control unit 173. FIG. [Figure 5] 3 is a flowchart showing the flow of processing in the information processing device 1. [Figure 6] 10 is a diagram showing an example of marker information acquired by a marker information acquisition unit 171. FIG. [Figure 7] 10 is a diagram showing an example of marker information acquired by a marker information acquisition unit 171. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] [Outline of Information Processing System S] 1 is a diagram illustrating an overview of an information processing system S according to an embodiment. The information processing system S is a system for displaying AR content. The information processing system S includes an information processing device 1, a server 2, and an object 3. The object 3 includes an NFC tag 31 and a marker 32.

[0020] The information processing device 1 is an information terminal used by a user. It is desirable that the information processing device 1 be portable. The information processing device 1 is a smartphone, a tablet, or a personal computer. The information processing device 1 captures an image, recognizes a marker 32 that appears in the captured image, and displays AR content corresponding to the recognized marker 32.

[0021] The server 2 is a server that manages content to be displayed on the information processing device 1. In response to a request from the information processing device 1, the server 2 transmits information for identifying a target marker to be recognized by the information processing device 1, and functions as a management device that transmits AR content to be displayed by the information processing device 1.

[0022] The object 3 is an item to which a marker 32 is attached for displaying AR content on the information processing device 1. The object 3 is preferably a portable item so that the user can have the experience of superimposing AR content on a background photographed at any location and displaying it on the information processing device 1. One example of the object 3 is a ring, but the object 3 is not limited to this.

[0023] The object 3 is attached with an NFC tag 31. The NFC tag 31 stores link information. The link information indicates a method for accessing a resource for acquiring marker information for identifying the marker 32. An example of the resource information is a universal resource identifier (URI) of a storage resource that stores the marker information. The marker information is information for recognizing the marker 32 included in image data captured by the information processing device 1. An example of the marker information is information indicating the shape of the marker 32.

[0024] The resource information may include information for identifying the NFC tag 31. The resource information may also include a URI that links to a different resource for each object 3. This configuration allows the information processing device 1 to acquire marker information corresponding to the object 3.

[0025] Furthermore, the marker information may be associated with content to be displayed when the marker 32 is recognized, or may be associated with a URI for obtaining the content to be displayed when the marker 32 is recognized. By configuring the marker information in this way, a variety of content can be displayed on the information processing device 1 without increasing the number of types of markers 32.

[0026] The processing in the information processing system S will be described. The information processing device 1 reads the NFC tag 31 attached to the object 3 and acquires link information ((1) in FIG. 1). The information processing device 1 accesses the resource in the server 2 indicated by the link information and acquires marker information ((2) in FIG. 1). The information processing device 1 stores the acquired marker information.

[0027] The information processing device 1 captures an image of the object 3 and generates image data. The information processing device 1 analyzes the captured image data and recognizes the marker 32 included in the image data based on the marker information ((3) in FIG. 1). The information processing device 1 acquires content corresponding to the recognized marker 32 from the server 2 and displays the acquired content on the display unit by superimposing it on the image captured by the information processing device 1 ((4) in FIG. 1).

[0028] The information processing system S is configured so that the information processing device 1 acquires marker information, recognizes the marker 32 indicated by the acquired marker information, and displays content corresponding to the recognized marker 32, thereby making it possible to flexibly associate markers with content and display a variety of AR content.

[0029] In the above description, an example has been described in which the NFC tag 31 storing link information is attached to the object 3, but a QR code (registered trademark) in which link information is embedded may be attached to the object 3 instead of the NFC tag 31. In this case, the information processing device 1 reads the QR code attached to the object 3 and acquires the link information embedded in the QR code.

[0030] [Configuration of information processing device 1] 2 is a block diagram showing the configuration of the information processing device 1. The information processing device 1 has a communication unit 11, a reading unit 12, an imaging unit 13, a display unit 14, an input unit 15, a storage unit 16, and a control unit 17. The information processing device 1 may further have a GPS receiving module and various sensors. The control unit 17 has a marker information acquisition unit 171, a recognition unit 172, a display control unit 173, an authentication information acquisition unit 174, an authentication processing unit 175, and an environmental information acquisition unit 176.

[0031] The communication unit 11 is a communication interface for transmitting and receiving data to and from other devices via a network. The reading unit 12 is an NFC reader. The reading unit 12 reads the link information recorded in the NFC tag 31 and outputs it to the marker information acquisition unit 171.

[0032] The imaging unit 13 is a camera. The imaging unit 13 outputs image data generated by capturing an image to the recognition unit 172 and the display control unit 173. The display unit 14 is a display. The display unit 14 displays an image based on a signal generated by the display control unit 173. The display unit 14 displays the image captured by the imaging unit 13.

[0033] The input unit 15 is an input device for receiving input of an operation signal from a user, and examples of the input unit 15 include a touch panel display, a keyboard, and a mouse.

[0034] The storage unit 16 is a storage medium including a read-only memory (ROM), a random access memory (RAM), a solid-state drive (SSD), a hard disk drive, etc. The storage unit 16 stores in advance a program to be executed by the control unit 17.

[0035] The control unit 17 is a processor such as a CPU (Central Processing Unit), etc. The control unit 17 executes a program stored in the storage unit 16, thereby functioning as a marker information acquisition unit 171, a recognition unit 172, a display control unit 173, an authentication information acquisition unit 174, an authentication processing unit 175, and an environmental information acquisition unit 176.

[0036] The marker information acquisition unit 171 accesses the resource indicated by the link information and acquires the marker information. The marker information includes marker identification information for identifying the marker 32. The marker identification information indicates the shape of the marker 32 to be recognized in the image. The marker identification information may include the color of the marker 32. Information for identifying the marker 32 may be associated with the marker identification information.

[0037] The recognition unit 172 recognizes the marker 32 indicated by the marker identification information from the image captured by the imaging unit 13. The recognition unit 172 compares the image data input from the imaging unit 13 with the shape of the marker 32 indicated by the marker identification information, and identifies the marker 32 included in the image data. The recognition unit 172 recognizes the marker 32 included in the image data using known image recognition technology.

[0038] When the recognition unit 172 recognizes the marker 32, the display control unit 173 superimposes content corresponding to the marker 32 on the image captured by the imaging unit 13 and displays the content on the display unit 14. FIG. 3 is a diagram showing an example of a screen that the display control unit 173 displays on the display unit of the information processing device. The content is, for example, an AR object. The display control unit 173 displays content C at a predetermined position on the screen. The predetermined position may be, for example, the position of the recognized marker 32. Alternatively, the display position of the content relative to the marker 32 may be determined in advance, and the display control unit 173 may determine the display position of the content C based on the position of the recognized marker 32. The display control unit 173 transmits information for identifying the recognized marker 32 to the server 2, acquires content C corresponding to the marker 32 recognized by the recognition unit 172 from the server 2, and displays the acquired content on the display unit 14.

[0039] The information processing device 1 is configured to acquire marker information, recognize the marker 32 indicated by the acquired marker information, and display content corresponding to the recognized marker 32, thereby making it possible to display a variety of AR content.

[0040] The information processing device 1 may be configured so that the display control unit 173 acquires content corresponding to the marker 32 from the server 2 at the timing when the marker 32 is recognized.

[0041] In this case, the marker information associates information for identifying the marker 32 with content link information. The content link information indicates a method for accessing a resource on the server 2 to obtain content to be displayed in accordance with the recognized marker 32. One example of the content link information is a URI for obtaining the content.

[0042] When the recognition unit 172 recognizes a marker 32, the display control unit 173 accesses a resource indicated by content link information associated in the marker information with the recognized marker 32, thereby displaying the content corresponding to the marker 32. When the recognition unit 172 recognizes a marker 32, the display control unit 173 accesses a resource indicated by content link information corresponding to the recognized marker 32, and acquires the content corresponding to the recognized marker 32. The display control unit 173 displays the acquired content on the display unit 14 by superimposing it at a predetermined position on the screen.

[0043] By configuring the information processing device 1 to acquire and display content when the marker 32 is recognized, an administrator who manages the content can easily maintain the content, and the user can display the latest content.

[0044] The information processing device 1 may be configured to recognize a plurality of markers 32 and display a plurality of pieces of content corresponding to the recognized markers 32, respectively.

[0045] The reading unit 12 reads a plurality of different NFC tags 31 and acquires a plurality of pieces of link information. Each of the plurality of different NFC tags 31 may be attached to the same object 3, or each of the plurality of different objects 3. The marker information acquisition unit 141 accesses a resource indicated by each of the plurality of pieces of link information and acquires marker information for identifying the plurality of different markers 32. The marker information acquisition unit 141 stores the acquired marker information in the storage unit 16.

[0046] The recognition unit 172 recognizes each of the multiple different markers 32 included in the image data captured by the imaging unit 13. The display control unit 173 displays content corresponding to each of the multiple markers 32. FIG. 4 is a diagram showing an example of a screen displayed by the display control unit 173 in this case. As an example, the display control unit 173 refers to the marker information stored in the storage unit 16 and acquires content corresponding to each of the multiple markers (32A and 32B) recognized by the recognition unit 172. The display control unit 173 displays the content (3A and 3B) corresponding to the multiple different markers (32A and 32B) on the display unit 14 by superimposing them on the image captured by the imaging unit 13.

[0047] By configuring the information processing device 1 in this way, the user can enjoy combining and displaying a plurality of contents. As an example, the user can enjoy collecting objects 3 for displaying each of the plurality of contents.

[0048] A link destination indicated by the link information stored in the NFC may contain multiple pieces of marker information. In this case, the marker information acquisition unit 131 stores each of the acquired pieces of marker information in the storage unit 16.

[0049] The recognition unit 172 recognizes the marker 32 included in the image data captured by the imaging unit 13. The display control unit 173 displays the content that corresponds to the recognized marker in the marker information.

[0050] After the imaging unit 13 recognizes the marker 32 in an image captured and displays the content, the position at which the content is to be displayed is determined based on the position at which the marker 32 was recognized. In this case, how to determine the position at which the content is to be displayed when the marker 32 is no longer visible in the image becomes a problem. In such a case, the information processing device 1 may be configured to determine the position at which the content is to be displayed based on the position of the object 3 to which the marker 32 is attached. In this case, the storage unit 16 pre-stores information indicating the shape of the object 3 and information indicating the relative position at which the content is to be displayed with respect to the recognized object when the shape of the object is recognized. The shape of the object is, for example, information indicating multiple feature points of the object.

[0051] When the display control unit 173 displays content and the recognition unit 172 is unable to recognize the marker 32, the recognition unit 172 further recognizes the object 3 to which the marker 32 is attached. When the recognition unit 172 is unable to recognize the marker 32 included in the image, the recognition unit 172 recognizes the object 3 included in the image data captured by the imaging unit 13 and specifies the position and orientation of the object 3.

[0052] The display control unit 173 displays the content corresponding to the marker 32 based on the position of the object 3. The display control unit 173 determines the position at which to display the content based on the position and orientation of the object identified by the recognition unit 172 and the relative position at which to display the content stored in the storage unit 16.

[0053] By configuring the information processing device 1 to display content based on the recognized object 3 even when it is no longer able to recognize the marker 32, it becomes possible to determine the position of the content even when it is no longer able to recognize the marker 32, thereby reducing the sense of discomfort felt by users when viewing the displayed content.

[0054] When a user carries the information processing device 1, the user can enjoy the content more by configuring the information processing device 1 to display content according to the external environment, such as the temperature and weather of the information processing device 1. In this case, the server 2 may store a content display mode according to the weather, or may store a temperature threshold and a content display mode when the temperature exceeds the threshold or falls below the threshold.

[0055] The environmental information acquisition unit 176 acquires environmental information indicating the environment around the information processing device 1. The environmental information indicates, for example, the weather, temperature, humidity, etc. around the location of the information processing device 1. As an example, the information processing device 1 transmits location information indicating the location of the information processing device 1 to an external server (not shown), and acquires environmental information corresponding to the location of the information processing device 1.

[0056] The environmental information may be a date or a time. In this case, the server 2 stores a display mode of the content corresponding to the date or time indicated by the environmental information.

[0057] The display control unit 173 displays the content corresponding to the marker 32 in a display mode based on the surrounding environment indicated by the environmental information. When acquiring the content corresponding to the marker 32 recognized by the recognition unit 172, the display control unit 173 further transmits the environmental information to the server 2 and acquires the display mode of the content corresponding to the environmental information. The display control unit 173 displays the content on the display unit 14 in the acquired display mode. Examples of the display mode of the content include the background and brightness of the content. Furthermore, if the content to be displayed is a character, the display mode may be the costume, pose, or movement of the character.

[0058] The information processing device 1 may be configured to display content in a special manner when the content is in a specific location. That is, the environmental information may be the location information itself. In this case, the server 2 stores the location indicated by the location information and the display manner of the content in association with each other. The environmental information acquisition unit 176 acquires the location information from a GPS receiving module installed in the information processing device 1. When acquiring content corresponding to the marker 32 recognized by the recognition unit 172, the display control unit 173 transmits the environmental information, which is the location information, to the server 2. The server 2 transmits the display manner of the content selected based on the location indicated by the environmental information to the information processing device 1, and the display control unit 173 displays the content in the acquired display manner on the display unit 14.

[0059] The information processing device 1 is configured to transmit environmental information to the server 2 and acquire and display content corresponding to the environmental information, thereby making it possible to display content corresponding to the external environment of the information processing device 1. As a result, it becomes possible to motivate the user to move around while carrying the object 3.

[0060] [Processing flow in information processing device 1] 5 is a flowchart showing the flow of processing in the information processing device 1. The flowchart shown in FIG.

[0061] The reading unit 12 reads the link information recorded in the NFC tag 31 (S01). The marker information acquisition unit 171 accesses the resource indicated by the link information and acquires the marker information (S02).

[0062] The imaging unit 13 captures an image of the object 3 and generates image data (S03). The recognition unit 172 recognizes the marker 32 included in the image data generated by the imaging unit 13 (S04). The display control unit 173 accesses the resource indicated by the content link information corresponding to the recognized marker 32 in the marker information, and acquires the content (S05). The display control unit 173 displays the acquired content superimposed on the image captured by the imaging unit 13 (S06). The information processing device 1 ends the processing.

[0063] [Effects of information processing device 1] The information processing device 1 is configured to acquire marker information, recognize the marker 32 indicated by the acquired marker information, and display content corresponding to the recognized marker 32, thereby making it possible to display a variety of AR content.

[0064] <Modification> In the above description, an example has been described in which the information processing device 1 is configured to download content to be displayed each time the marker 32 is recognized, but the information processing device 1 may also be configured to download content when marker information is acquired.

[0065] FIG. 6 is a diagram showing an example of marker information acquired by the marker information acquisition unit 171. In the marker information, an "ID," "marker identification information," and "content" are associated with each other. The "ID" is an ID for identifying the correspondence between a marker and content. That is, the "content" indicates content to be displayed when the marker 32 indicated by the "marker identification information" is recognized. The server 2 stores the marker information shown in FIG. 6, and the marker information acquisition unit 171 acquires the marker information from the server 2 based on the link information acquired by the reading unit 12 and stores the acquired marker information in the storage unit 16. Note that a content administrator can add, change, or delete the correspondence between a marker and content in the marker information stored in the server 2. By adding, changing, or deleting the marker information, the content administrator can flexibly associate markers with content, allowing users to enjoy a variety of AR content.

[0066] When the recognition unit 172 recognizes a marker 32, the display control unit 173 displays the content corresponding to the marker in a display mode associated with the marker 32 in the marker information. The display control unit 173 refers to the marker information stored in the memory unit 16 and displays the content corresponding to the marker 32 recognized by the recognition unit 172 on the display unit 14 by superimposing it on the image data captured by the imaging unit 13.

[0067] When content is downloaded in advance, the display mode of the content corresponding to the environmental information is associated in the marker information. FIG. 7 is a diagram showing an example of the data structure of the marker information in this case. In the environmental information shown in FIG. 7, "marker identification information," "environment," and "content display mode" are associated. "Environment" corresponds to the environmental information acquired by the environmental information acquisition unit 176. In the marker information shown in FIG. 7, an example is shown in which the display mode of the content is controlled based on the weather. The "content display mode" indicates the display mode of the content that is displayed in accordance with the external environment indicated by the "environment."

[0068] When the recognition unit 172 recognizes the marker 32, the display control unit 173 displays content in a display mode corresponding to the surrounding environment indicated by the environment information, from among the content associated with the marker 32 in the marker information.

[0069] The information processing device 1 is configured to acquire content to be displayed in association with the marker identification information, thereby achieving the effect of reducing the load on the network when displaying content.

[0070] The information processing device 1 may be configured to authenticate a user, and if the authenticated user is able to display content corresponding to the marker 32, to display the content.

[0071] The authentication information acquisition unit 174 acquires authentication information for authenticating a user who uses the information processing device. An example of the authentication information is the user's ID (Identification) and password. As an example, when the recognition unit 172 recognizes the marker 32, the display control unit 173 causes the display unit 14 to display a screen prompting the user to input authentication information. The authentication information acquisition unit 174 acquires the authentication information input by the user.

[0072] The authentication processing unit 175 transmits authentication information of the user who uses the information processing device 1 to the server 2 that manages the display of content, and inquires of the server 2 as to whether or not the content corresponding to the marker 32 can be displayed. The authentication processing unit 175 transmits information for identifying the recognized marker 32 and the authentication information acquired by the authentication information acquisition unit 174 to the server 2, and inquires as to whether or not the content corresponding to the recognized marker 32 can be displayed.

[0073] The display control unit 173 displays the content corresponding to the recognized marker when it is possible to display the content corresponding to the marker 32. When the server 2 responds that the content can be displayed, the display control unit 173 displays the content.

[0074] By configuring the information processing device 1 to display content based on whether the content can be displayed to a user, it becomes possible to display content only to specific users. As a result, it becomes possible to encourage interaction between users, such as by showing each other content.

[0075] Furthermore, this invention will make it possible to contribute to Goal 9 of the United Nations' Sustainable Development Goals (SDGs), which is "Build resilient infrastructure, promote inclusive and sustainable industrialization, and promote innovation and resilience."

[0076] The present invention has been described above using embodiments, but the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. For example, all or part of the device can be configured by functionally or physically distributing or integrating any unit. Furthermore, new embodiments resulting from any combination of multiple embodiments are also included in the embodiments of the present invention. The effects of the new embodiments resulting from the combination also have the effects of the original embodiments. [Explanation of symbols]

[0077] 1. Information processing equipment 2 Server 11 Communications Department 12 Reading unit 13 Imaging unit 14 Display section 15 Input section 16 Memory section 17 Control Unit 171 Marker information acquisition unit 172 Recognition part 173 Display control unit 174 Authentication Information Acquisition Unit 175 Authentication processing section 176 Environmental Information Acquisition Department

Claims

1. a reading unit that reads link information recorded in an NFC (Near Field Communication) tag, the link information indicating a resource for acquiring marker information for identifying the marker; a marker information acquisition unit that accesses the resource indicated by the link information and acquires the marker information; a display unit that displays an image captured by the imaging unit; a recognition unit that recognizes the marker identified by the marker information from an image captured by an imaging unit; a display control unit that, when the recognition unit recognizes the marker, causes a content corresponding to the marker to be superimposed on an image captured by the imaging unit and displayed on a display unit; An information processing device having the above.

2. the reading unit reads link information indicating a resource for acquiring information for recognizing a marker attached to the object to which the NFC tag is attached; The information processing device according to claim 1 .

3. the marker information acquisition unit acquires the marker information for identifying a plurality of different markers; the recognition unit recognizes each of the plurality of different markers; the display control unit displays content corresponding to each of the plurality of markers; The information processing device according to claim 1 .

4. the recognition unit, when the display control unit has caused the content to be displayed and the marker cannot be recognized, further recognizes the object to which the marker is attached; the display control unit displays content corresponding to the marker based on the position of the object; The information processing device according to claim 1 .

5. an environmental information acquisition unit that acquires environmental information indicating a surrounding environment of the information processing device; the display control unit displays the content corresponding to the marker in a display mode based on the surrounding environment indicated by the environmental information. The information processing device according to claim 1 .

6. an authentication information acquisition unit that acquires authentication information for authenticating a user who uses the information processing device; an authentication processing unit that transmits authentication information of a user who uses the information processing device to a management device that manages display of content, and inquires of the management device whether or not the content corresponding to the marker can be displayed; and the display control unit causes the content corresponding to the marker to be displayed when the content can be displayed; The information processing device according to claim 1 .

7. In the marker information, information for identifying the marker is associated with content to be displayed when the marker indicated by the marker information is recognized, the display control unit, when the recognition unit recognizes the marker, causes content associated with the marker in the marker information to be displayed. The information processing device according to claim 1 .

8. an environmental information acquisition unit that acquires environmental information indicating a surrounding environment of the information processing device; the marker information associates information for identifying the marker with a surrounding environment and a display mode of the content corresponding to the marker and displayed in accordance with the surrounding environment; when the recognition unit recognizes the marker, the display control unit displays the content corresponding to the marker in a display mode associated with the marker in the marker information; The information processing device according to claim 7 .

9. In the marker information, information for identifying the marker is associated with content link information indicating a resource for acquiring content to be displayed when the marker is recognized, when the recognition unit recognizes the marker, the display control unit accesses a resource indicated by content link information associated with the marker in the marker information, thereby displaying the content corresponding to the marker. The information processing device according to claim 1 .

10. The computer executes reading link information recorded in the NFC tag, the link information indicating a resource for acquiring marker information for identifying the marker; accessing the resource indicated by the link information and acquiring the marker information; Recognizing the marker identified by the marker information from an image captured by an imaging unit; When the marker is recognized, displaying content corresponding to the marker on a display unit in such a manner that the content is superimposed on an image captured by the imaging unit; An information processing method comprising:

11. On the computer, reading link information recorded in the NFC tag, the link information indicating a resource for acquiring marker information for identifying the marker; accessing the resource indicated by the link information and acquiring the marker information; Recognizing the marker identified by the marker information from an image captured by an imaging unit; When the marker is recognized, displaying content corresponding to the marker on a display unit in such a manner that the content is superimposed on an image captured by the imaging unit; A program that executes the following.

Images