Image control device, lighting control device, image control method, and lighting control method

Abstract

To provide an image control device and the like, capable of offering a desired environment to a user while suppressing reduction in efficiency of a task that the user is performing.SOLUTION: An image control device controls an image displayed on a display device 20 used for a task performed by a user U, comprising: an attention region determination unit 13 configured to determine, in a first image of the display device 20, an attention region on which the user U is focusing; a storage unit 15 that stores in advance an image correction method for correcting the first image; a correction unit (for example, a control unit 14) configured to generate a second image by correcting an outside-attention-region image excluding the attention region of the user U in the first image, in accordance with the image correction method; and an output unit 16 configured to output information for displaying the corrected second image.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a video control device, a lighting control device, a video control method, and a lighting control method.

Background Art

[0002] Patent Document 1 discloses a display monitor that can reduce visual fatigue.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when a user is performing work or the like, it is desirable to provide the user with a desired environment without reducing the efficiency of the work being performed by the user. However, Patent Document 1 does not disclose a technique for providing a desired environment without reducing the efficiency of work.

[0005] Therefore, the present invention provides a video control device, a lighting control device, a video control method, and a lighting control method that can provide a desired environment to a user while suppressing a decrease in the efficiency of the work being performed by the user.

Means for Solving the Problems

[0006] A video control device according to an aspect of the present disclosure is a video control device that controls a video displayed on a display device used for work performed by a user, and includes a focus area determination unit that determines a focus area on which the user is focusing in a first video of the display device, a storage unit that stores in advance a video correction method for correcting the first video, a correction unit that generates a second video by correcting video outside the focus area excluding the focus area of the user in the first video according to the video correction method, and an output unit that outputs information for displaying the corrected second video.

[0007] An illumination control device according to an aspect of the present disclosure includes a focus area determination unit that determines a focus area on which the user is focusing in a space where the user stays, a storage unit that stores in advance an illumination light correction method for correcting illumination light, a correction unit that corrects illumination light irradiated by an illumination device and outside the focus area excluding the focus area of the user according to the illumination light correction method, and an output unit that outputs information for irradiating the corrected illumination light.

[0008] A video control method according to an aspect of the present disclosure is a video control method executed by a video control device that controls a video displayed on a display device used for work performed by a user. The method includes determining a focus area on which the user is focusing in a first video of the display device, executing a process for generating a second video by correcting video outside the focus area excluding the focus area of the user in the first video according to a video correction method stored in advance in a storage unit, and outputting information for displaying the corrected second video.

[0009] The lighting control method according to one aspect of the present disclosure is a lighting control method executed by a lighting control device. In a space where a user stays, a focused area that the user is focusing on is determined, and lighting light irradiated by a lighting device, which irradiates an area outside the focused area excluding the focused area of the user, is corrected according to a lighting light correction method stored in a storage unit in advance, and information for irradiating the corrected lighting light is output.

Effect of the Invention

[0010] According to one aspect of the present disclosure, it is possible to realize a video control device or the like that can provide a desired environment for a user while suppressing a decrease in the efficiency of work being performed by the user.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4A

Figure 4B

Figure 4C

Figure 4D

Figure 5

Figure 6A

Figure 6B

Figure 6C

Figure 6D

Figure 7

Figure 8A

Figure 8B

Figure 9A

Figure 9B

Figure 9C

[0012] Hereinafter, the embodiments will be specifically described with reference to the drawings.

[0013] Note that each of the embodiments described below shows comprehensive or specific examples. The numerical values, shapes, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples and are not intended to limit the present disclosure. In addition, among the components in the following embodiments, the components not described in the independent claims are described as optional components.

[0014] Also, each figure is a schematic diagram and is not necessarily drawn precisely. Therefore, for example, scales etc. in each figure do not necessarily match. Also, for substantially the same configuration in each figure, the same reference numerals are assigned, and overlapping explanations are omitted or simplified.

[0015] Also, in this specification, terms indicating the relationship between elements such as the same, as well as numerical values and numerical ranges, are not expressions representing only a strict meaning, but are expressions meaning to include substantially equivalent ranges, for example, a difference of about several percent (or about 10%).

[0016] Also, in this specification, ordinal numbers such as "first" and "second" do not mean the number or order of components, unless otherwise specified, and are used for the purpose of avoiding confusion and distinguishing between components of the same kind.

[0017] (Embodiment 1) Hereinafter, the control system according to this embodiment will be described with reference to FIGS. 1 to 6D.

[0018] [1-1. Configuration of the control system] First, the configuration of the control system according to this embodiment will be described with reference to FIG. 1. FIG. 1 is a diagram showing the configuration of the control system 1 according to this embodiment. In FIG. 1, it shows a state where the user U is performing an operation on the video displayed on the display device 20. Note that the video may be a still image or a moving image.

[0019] As shown in FIG. 1, the control system 1 includes a control device 10, a display device 20, and a lighting device 30. The user U stays in a space such as a workroom. The display device 20 is a monitor arranged in the space, and the lighting device 30 is a lighting device arranged in the space. The lighting device 30 is arranged so as to irradiate illumination light within the visual field of the user U. Note that the control system 1 may include at least one of the display device 20 and the lighting device 30 as a control target. Also, the number of the display device 20 and the lighting device 30 included in the control system 1 is not particularly limited, and may be one or more.

[0020] In FIG. 1, an example in which the control device 10 is a device separate from the display device 20 and the lighting device 30 is illustrated. However, for example, it may be built in at least one of the display device 20 and the lighting device 30.

[0021] The control device 10 executes processing for providing a desired environment to the user while suppressing a decrease in the efficiency of the work being performed by the user U. The control device 10 is communicably connected to the display device 20 and the lighting device 30, and executes the processing by controlling at least one of the display device 20 and the lighting device 30. The work may be, for example, work using a personal computer (PC) (e.g., character input, online meeting), viewing video content, work performed while checking a video (e.g., assembling parts, etc.), or other work. Also, the movement is the user U moving a part or all of the body, and may be, for example, moving a fingertip, walking, standing up, sitting down, etc.

[0022] The control device 10 is an information processing device (for example, a stimulus presentation control device) for presenting visually perceivable stimuli to the user U. For example, when the control device 10 controls the display device 20, the control device 10 functions as a video control device for controlling the video within the field of view of the user U. When the control device 10 controls the lighting device 30, the control device 10 functions as a lighting control device for controlling the lighting light within the field of view of the user U.

[0023] The control device 10 is realized by a non-volatile memory storing a program, a volatile memory which is a temporary storage area for executing the program, an input / output port, a communication interface, a processor for executing the program, and the like. Further, the control device 10 includes, as a functional configuration, a mode reception unit 11, a video input unit 12, a region of interest determination unit 13, a control unit 14, a storage unit 15, and an output unit 16.

[0024] When a plurality of modes are stored in the storage unit 15, the mode reception unit 11 receives an input of the mode selected by the user U. The mode can be, for example, a mode corresponding to the work being performed by the user U. The mode reception unit 11 is configured to include, for example, buttons, a keyboard, a touch panel, a microphone, etc., and receives an input from the user U by an input operation or voice, etc. Further, the mode reception unit 11 is configured to include, for example, a communication interface, and may receive the mode by communication from an information terminal such as a smartphone held by the user U. A dedicated application for controlling the display device 20 and the lighting device 30 may be installed in an information terminal such as a smartphone.

[0025] Here, the mode is a mode for realizing the desired environment of the user U, and includes at least one of a concentration mode, a relaxation mode, a wakefulness mode, and a divergence mode. The concentration mode is a mode for generating an environment in which the user U can concentrate on work. For example, it is a mode for performing lighting control or video control (e.g., video generation) so that the overall color tone is a cool color. Also, in the case of lighting control, for example, the illuminance is set higher than in the relaxation mode, for example, set to 500 lx or more.

[0026] The relaxation mode is a mode for generating an environment for relaxing the user U. For example, it is a mode for performing lighting control or video control so that the overall color tone is a warm color. Also, in the case of lighting control, the illuminance is set lower than in the concentration mode, for example, set to less than 500 lx, and further may be set to less than 400 lx. Also, in the relaxation mode, an environment for recovering the fatigue of the user U may be generated. Examples of videos effective for fatigue improvement include videos whose luminance distribution satisfies a predetermined characteristic such as 1 / f characteristic, or videos with a harmonious color tone whose colors satisfy a predetermined characteristic such as Zipf characteristic. The Zipf characteristic is an empirical rule that for a harmonious video, the element with the k-th largest appearance frequency is proportional to 1 / k compared to the frequency of the first-ranked one. Examples of those satisfying the Zipf characteristic include paintings and the like.

[0027] Thus, in the relaxation mode, at least one of displaying a video that is not easily mentally fatiguing or irradiating lighting light is performed in the work of the user U.

[0028] The wakefulness mode is a mode for generating an environment for reducing drowsiness. For example, it is a mode for performing lighting control or video control so that the luminance distribution contains a predetermined amount or more of high-frequency components. In the wakefulness mode, lighting control or video control is performed so as to lower the 1 / f approximation value in the luminance distribution.

[0029] The divergence mode is a mode for generating an environment in which the user U can generate new ideas or expand their thinking. For example, the luminance distribution contains many high-frequency components, and the color distribution is not made too non-uniform, and the entropy is controlled to be below a predetermined value (when each of the RGB values of the video is 8 bits, for example, 7 or less) by lighting control or video control. Entropy is calculated by the following formula 1, for example, when the probability of appearance of each pixel of the video is X.

[0030] Entropy = -Σ(X log X) (Formula 1)

[0031] Also, when the pattern of colors used in the video is small or the uniformity is high, the entropy tends to be low. If the entropy is too high, it becomes too calming and is considered an environment not conducive to coming up with ideas. Therefore, the entropy in the case where each of the RGB values of the video is 8 bits is set to 7 or less. Note that the entropy in the case where each of the RGB values of the video is 8 bits is not limited to 7 or less, and may be, for example, 8 or less, 6 or less, or 5 or less.

[0032] Note that the modes are not limited to the above four, and there may be other modes. Also, there may be only one preset mode. In this case, the control device 10 may not include the mode reception unit 11.

[0033] When the video input unit 12 corrects a video generated by an external device, the video generated by the external device is input. The video input unit 12 is configured to include, for example, a communication interface and acquires the video by communication. The external device may be, for example, the display device 20 when the control device 10 and the display device 20 are separate bodies. The video input unit 12 is an example of an input unit.

[0034] The attention area determination unit 13 determines the attention area within the field of view of the user U. The attention area is the area that the user U is paying attention to in the work that the user U is performing. The attention area determination unit 13 may determine the attention area by detecting the line of sight of the user U.

[0035] In this embodiment, the attention area determination unit 13 determines an area that the user U is paying attention to in the video (first video) currently being displayed on the display device 20. For example, when the user U is working using a PC, the attention area determination unit 13 may determine, as the attention area, the area occupied by the window or application on which the user U is operating on the screen of the PC monitor. Specific examples of the determination by the attention area determination unit 13 will be described later with reference to FIGS. 9A to 9C.

[0036] The control unit 14 controls the visual stimulus to the user U based on the attention area determined by the attention area determination unit 13. The control unit 14 controls the visual stimulus in the range outside the attention area, excluding the attention area, within the visual field of the user U based on the control parameter read from the storage unit 15. For example, the control unit 14 adjusts the visual stimulus in the range outside the attention area so that the feature amount related to the visual stimulus within the visual field of the user U approaches the control parameter. The visual stimulus includes at least one of video and illumination light.

[0037] The control unit 14 may correct the video outside the attention area, excluding the attention area of the user U, in the first video displayed on the display device 20 according to the video correction method, or correct the illumination light irradiated by the illumination device 30, that is, the illumination light irradiating the area outside the attention area, excluding the attention area of the user U (for example, the range outside the attention area within the visual field of the user U), according to the illumination light correction method. For example, the control unit 14 may correct the video outside the attention area according to the video correction method corresponding to the received mode, or correct the illumination light irradiating the area outside the attention area according to the illumination light correction method corresponding to the mode. Here, the correction means changing the control information for controlling the video or illumination light to realize a desired environment.

[0038] Note that the control unit 14 does not correct the illumination light and the video for the attention area from the viewpoint of suppressing a decrease in the work efficiency of the user U. It can be said that the control unit 14 corrects only the video in the range outside the attention area among the attention area and the range outside the attention area within the visual field of the user U. Further, it can be said that the control unit 14 corrects only a part of the screen of the display device 20, for example.

[0039] Note that the control unit 14 may perform the above correction on the video input to the video input unit 12. In this way, the control device 10 may perform video correction on the video input from an external device. The control unit 14 is an example of a correction unit.

[0040] The storage unit 15 stores various programs and various information for the control device 10 to execute processing. The storage unit 15 stores various preset information for correcting at least one of the output video and illumination light. The storage unit 15 may store, as various information, for example, a plurality of video candidates or illumination control candidate conditions in the range outside the attention area corresponding to the feature amount of the video in the attention area. Further, the storage unit 15 may store, as various information, for example, preset control parameters for visual stimulation.

[0041] The control parameter for visual stimulation is a control parameter for executing at least one of video control and illumination control, and includes control parameters corresponding to each mode. The control parameter includes a target value or a target range of at least one feature amount of luminance distribution, luminance dispersion, frequency characteristics of luminance (for example, spatial frequency characteristics), illuminance distribution, chromaticity distribution, color distribution, saturation dispersion, frequency characteristics of color (for example, spatial frequency characteristics), and color temperature. The target value or the target range is also simply referred to as a target.

[0042] Here, the video correction method is a method for correcting so that the feature amount of the video satisfies the target, and includes correcting the gradation value of the video outside the target area, replacing the video outside the target area with another video, and the like. Also, which method is used to correct the video may be, for example, preset or determined according to the mode. Further, a target corresponding to the mode may be included in the video correction method.

[0043] Also, the illumination light correction method is a method for correcting so that the video in the target area and the feature amount outside the target area satisfy the target, and includes changing the illumination control conditions of the illumination light outside the target area, and the like. Also, which method is used to correct the illumination light may be, for example, preset or determined according to the mode. Further, a target corresponding to the mode may be included in the illumination light correction method. The illumination control conditions include at least one of the color temperature, illuminance, and color tone of the illumination light.

[0044] The storage unit 15 is realized by, for example, a semiconductor memory or the like, but is not limited thereto.

[0045] The output unit 16 outputs a control signal for presenting a visual stimulus to at least one of the display device 20 and the illumination device 30 based on the control of the control unit 14. The output unit 16 causes the display device 20 to perform a desired display (for example, a display corresponding to the mode) by, for example, transmitting a control signal for displaying the video (second video) corrected by the control unit 14 to the display device 20. Also, the output unit 16 causes the illumination device 30 to perform a desired illumination (for example, an illumination corresponding to the mode) by, for example, transmitting a control signal for irradiating the illumination light according to the illumination control conditions corrected by the control unit 14 to the illumination device 30.

[0046] The display device 20 is a display device used for the work performed by the user U. For example, the display device 20 is a monitor connected to an information processing device such as a PC, and displays an image for the user to perform work. Note that the display device 20 may be any device as long as it can display an image for the user U. For example, it may be a monitor, digital signage, smart glasses, or the like.

[0047] The lighting device 30 irradiates illumination light on the range where the user U is working. The lighting device 30 may be, for example, a lighting device attached to the ceiling that illuminates the space where the user U stays, or may be lighting that illuminates the hands of the user U who is working. The lighting device 30 is realized by, for example, a ceiling light, a desk lamp, a spotlight, etc., but is not limited thereto.

[0048] [1-2. Operation of the control system] Subsequently, the operation of the control system 1 configured as described above will be described with reference to FIGS. 2 to 6D. FIG. 2 is a flowchart showing the operation (video control method, lighting control method) of the control system 1 according to the present embodiment.

[0049] As shown in FIG. 2, the mode reception unit 11 receives a selection of a control pattern from the user U (S11). For example, the mode reception unit 11 may receive a selection of a control pattern by receiving a selection of a mode from the user U. Note that when there is only one mode, step S11 may be omitted.

[0050] Next, the attention area determination unit 13 determines the attention area of the user U (S12).

[0051] Next, the control unit 14 reads the control parameters of the control pattern (mode) received in step S11 from the storage unit 15 (S13). The control parameters include the target of the feature amount corresponding to the control pattern. A feature amount is associated with each mode, and in step S13, the target of the feature amount corresponding to the mode received in step S11 is read from the storage unit 15.

[0052] Next, the control unit 14 determines a control target for realizing a desired environment (S14). Specifically, the control unit 14 determines whether the control target is the display device 20, the lighting device 30, or both the display device 20 and the lighting device 30. The control unit 14 may determine the control target according to, for example, the mode, or may determine the control target according to the situation of the user U. For example, when the line of sight of the user U is directed at the display device 20, the control unit 14 may determine at least the display device 20 as the control target. Further, for example, when the line of sight of the user U is directed at something other than the display device 20 such as the user's hand, the control unit 14 may determine at least the lighting device 30 as the control target. Note that a table in which the mode and the control target are associated may be stored in the storage unit 15.

[0053] Next, the control unit 14 generates control information for realizing a desired environment according to the mode (S15). The control unit 14 generates, for example, control information for the control target determined in step S14.

[0054] Note that in step S15, in order to suppress a sudden change in the video or illumination light in the range outside the attention area, control information for gradually switching over a predetermined period (for example, 1 second or more) may be generated. Thereby, it is possible to suppress giving the user U a sense of discomfort due to the switching of the video or illumination light.

[0055] Next, the output unit 16 outputs the generated control information to at least one of the display device 20 and the lighting device 30 (S16). The output unit 16 outputs a control signal corresponding to the control information to at least one of the display device 20 and the lighting device 30. The output unit 16 may output, for example, control information for displaying a corrected video (second video) to the display device 20, or may output control information for irradiating corrected illumination light to the lighting device 30.

[0056] Here, the generation of control information for controlling video will be described with reference to FIGS. 3 to 4D. FIG. 3 is a flowchart showing the operation (video control method) of step S15 shown in FIG. 2 when the control target is the display device 20. FIG. 4A is a diagram showing an example of video according to the present embodiment. FIG. 4B is a diagram showing an example of range information outside the attention area and video of the range of the attention area according to the present embodiment. FIG. 4C is a diagram showing an example of generated video of the range outside the attention area according to the present embodiment. FIG. 4D is a diagram showing an example of output video according to the present embodiment.

[0057] As shown in FIG. 3, when the control unit 14 acquires video information indicating the first video (S151), it cuts out an area based on the attention area (S152).

[0058] As shown in FIG. 4A, the video information is, for example, information for displaying video 20a including the attention area R11 and the range outside the attention area (area R21 outside the attention area). The attention area R11 here is the area of the window selected by the user U for work, and the area R21 outside the attention area is black display. The black display is, for example, video in which the gradation values of each pixel are substantially the same and the gradation value is below a predetermined value. Note that the sizes and area ratios of the attention area R11 and the area R21 outside the attention area are not limited to the example shown in FIG. 4A.

[0059] (a) of FIG. 4B is video in which the attention area R11 in video 20a is cut out and is a diagram showing range information outside the attention area. The hatched area shown in (a) of FIG. 4B indicates the range outside the attention area.

[0060] (b) of FIG. 4B shows video V1 of the range of the cut-out attention area R11.

[0061] Referring to FIG. 3 again, next, the control unit 14 extracts the feature amount (video feature amount) of the target area R11 (S153). The control unit 14 calculates the feature amount of the video V1 shown in FIG. 4B (b). The feature amount includes at least one of the feature amounts exemplified above. The feature amount is, for example, a feature amount of a type corresponding to the control pattern (mode) received in step S11.

[0062] Next, the control unit 14 acquires a video outside the target area to be combined with the video of the target area R11 (the video corresponding to the area R21 outside the target area shown in FIG. 4B) (S154). The control unit 14 acquires the video outside the target area by correcting the video outside the target area excluding the target area R11 among the videos acquired in step S151.

[0063] The control unit 14 may perform correction by converting the gradation value of each pixel of the video outside the target area according to a method determined in advance according to the mode. For example, the control unit 14 is a table corresponding to the selected mode, and based on a table in which at least one of the size of the target area R11 and the feature amount of the target area R11 is associated with the correction amount, the gradation value of each pixel of the video outside the target area may be corrected. For example, the larger the size of the target area R11, that is, the smaller the range outside the target area on the screen, the larger the correction amount is generated in the table. Also, for example, the table is generated so that the larger the feature amount of the target area R11 is from the target, the larger the correction amount is. The table is generated in advance and stored in the storage unit 15.

[0064] In the case of the relaxation mode, the control unit 14 may correct the gradation values of each pixel of the video outside the target area so that, for example, the luminance distribution of the entire synthesized video (second video) approaches 1 / f (e.g., increases the 1 / f approximation value) compared to the video obtained in step S151. Also, in the case of the relaxation mode, the control unit 14 may correct the gradation values of each pixel of the video outside the target area so that, for example, the appearance frequency of the color that appears k-th most frequently in the entire synthesized video approaches the color distribution of 1 / k compared to the color with the highest frequency and is closer to the video obtained in step S151. Here, it is assumed that the video shown in FIG. 4C is generated.

[0065] Note that the method for correcting the video is not limited to this, and other methods may be used. For example, the control unit 14 may replace the video in the area outside the target area with another pre-stored video. For example, the control unit 14 may acquire a candidate video (an example of another video) determined according to a predetermined method according to the mode from among a plurality of candidate videos as the video outside the target area. For example, the control unit 14 may determine, from among a plurality of candidate videos, a candidate video that is a candidate for replacing the video outside the target area based on a table corresponding to the selected mode, in which at least one of the size of the target area R11 and the feature amount of the target area R11 is associated with the candidate video. For example, the larger the size of the target area R11, that is, the narrower the range outside the target area on the screen, the candidate video having a feature amount closer to the target may be determined. Also, for example, the farther the feature amount of the target area R11 is from the target, the candidate video having a feature amount closer to the target may be determined. The table is generated in advance and stored in the storage unit 15. Note that the candidate video may be a still image or a moving image.

[0066] Next, the control unit 14 synthesizes the video V1 cut out in step S152 and the video acquired in step S154 (S155). The control unit 14 synthesizes the two videos by fitting the video V1 into the attention area R11 in the video acquired in step S154. For example, an output video 20b (synthesized video) as shown in FIG. 4D is generated. The output video 20b is an example of the second video.

[0067] Note that, although an example in which the screen of the display device 20 connected to the PC changes as the output video 20b is output has been described, the present invention is not limited to this. For example, the digital signage arranged around the user U may change, the background (background video) in VR (Virtual Reality) may change, or the surroundings (surrounding video) of the video of the other party or the material during the online meeting may change. Further, when the illumination light is controlled, the illumination or wall surface, floor surface, decorations on the desk, etc. around the user U may change.

[0068] Next, the control unit 14 determines whether or not the output video 20b has features according to the control parameters (S156). For example, the control unit 14 may determine that the output video 20b has features according to the control parameters when the feature amount of the output video 20b approaches the target of the feature amount included in the control parameters as compared with the feature amount of the video 20a. Further, for example, the control unit 14 may determine that the output video 20b has features according to the control parameters when the feature amount of the output video 20b is within the target range of the feature amount included in the control parameters.

[0069] Next, when it is determined that the output video 20b has features according to the control parameters (Yes in S156), the control unit 14 ends the process. When it is determined that the output video 20b does not have features according to the control parameters (No in S156), the control unit 14 readjusts the video outside the attention area (S157) and proceeds to step S156. The readjustment may be to correct the gradation value of the video in the range outside the attention area of the first video in the second video, or may be to replace the range outside the attention area with another video.

[0070] In this way, the control unit 14 calculates the feature amount of the output video 20b, determines whether the feature amount of the output video 20b satisfies the target based on the mode, and if the target is not satisfied, corrects the video outside the attention area again. Thereby, by readjusting the luminance distribution and the like of the video outside the attention area, it is possible to provide the user U with a desired environment.

[0071] Subsequently, generation of control information for controlling lighting will be described with reference to FIGS. 5 to 6D. FIG. 5 is a flowchart showing the operation (lighting control method) of step S15 shown in FIG. 2 when the control target is the lighting device 30. FIG. 6A is a diagram showing an example of the acquired video according to the present embodiment. FIG. 6B is a diagram showing an example of the range information outside the attention area and the video (video information) of the attention area according to the present embodiment. FIG. 6C is a diagram showing an example of the lighting content in the range outside the attention area according to the present embodiment. FIG. 6D is a diagram showing an example of the lighting control output according to the present embodiment. In FIG. 5, for the same or similar operations as those in FIG. 3, the same reference numerals are given and the description is omitted or simplified.

[0072] As shown in FIG. 6A, in step S151, video information of the entire space 100 imaged by an imaging device or the like capable of imaging the entire space 100 is acquired. Hereinafter, the case where two users U exist in the space 100 will be described. In FIG. 6A, the space 100 is illuminated under some lighting control conditions.

[0073] In this case, as shown in FIG. 6B(b), since there are attention areas R12 for each of the two users, two videos V2 of the attention area R12 may exist. Therefore, as shown in FIG. 6B(a), the area R22 outside the attention area (range outside the attention area) is an area excluding the two attention areas R12. In FIG. 6B, an example in which the area near the user U's hand is determined to be the attention area R12 is shown. The area R22 outside the attention area may include, for example, an object having a fixed color such as a desk, or may include the range outside the attention area in the video.

[0074] As shown in FIG. 5, the control unit 14 acquires the lighting control conditions outside the attention area around the video of the attention area R12 (S251). The control unit 14 may acquire the lighting control conditions by correcting the lighting control conditions of the area outside the attention area excluding the attention area R12 from the video acquired in step S151 and generating the lighting control conditions outside the attention area. The control unit 14 may correct the lighting control conditions by converting the lighting control conditions of the illumination light irradiated on the area outside the attention area according to a predetermined method according to the mode.

[0075] In the case of the relaxation mode, for example, the control unit 14 makes the illuminance distribution (or the converted luminance distribution) of the area R22 outside the attention area irradiated with the video V2 and the corrected illumination light closer to 1 / f than in the case of the video acquired in step S151. The lighting control conditions of the illumination light irradiated on the area R22 outside the attention area may be changed. Also, in the case of the relaxation mode, for example, the control unit 14 makes the appearance frequency of the color that appears most frequently in the area R22 outside the attention area irradiated with the video V2 and the adjusted illumination light closer to 1 / k of the color distribution compared to the most frequent color than in the case of the video acquired in step S151. The lighting control conditions of the illumination light irradiated on the area R22 outside the attention area may be changed.

[0076] For example, as shown in FIG. 6C, it is assumed that the lighting control conditions of the target area L, which is the area outside the attention area, are changed. As a result, the lighting control conditions of the target area L are changed among the areas R22 outside the attention area around the area in the space 100 corresponding to the video V2. For example, as shown in FIG. 6D, the lighting control conditions of the lighting device 30 (for example, wall surface lighting) in the space 100 are changed.

[0077] Note that the correction method of the illumination light is not limited to this, and other methods may be used.

[0078] Next, the control unit 14 acquires the video information again (S252). For example, the control unit 14 acquires the latest video information. Then, for example, the determination in step S156 is made using the video information acquired in step S252. Note that step S252 may not be executed, and the video information acquired in step S151 may be used for the determination in step S156.

[0079] Next, the control unit 14 determines whether the space 100 in which the lighting control condition has been changed has characteristics according to the control parameters (S156). For example, the control unit 14 may determine that the space 100 has characteristics according to the control parameters when the feature amount of the space 100 after the lighting control condition change (for example, the feature amount within the field of view of the user U) approaches the target of the feature amount included in the control parameters as compared with the feature amount of the video shown in FIG. 6A. Further, for example, the control unit 14 may determine that the space 100 has characteristics according to the control parameters when the feature amount of the space 100 after the lighting control condition change (for example, the feature amount within the field of view of the user U) is within the target range of the feature amount included in the control parameters.

[0080] Next, when it is determined that the space has characteristics according to the control parameters (Yes in S156), the control unit 14 ends the process. When it is determined that the space does not have characteristics according to the control parameters (No in S156), the lighting control conditions outside the attention area are readjusted (S253). Thereby, by readjusting the illuminance distribution and the like of the illumination light outside the attention area, it is possible to provide the user U with a desired environment.

[0081] (Embodiment 2) Hereinafter, the control device according to the present embodiment will be described with reference to FIG. 7. Note that hereinafter, the description will focus on the differences from Embodiment 1, and the description of the same or similar contents as those in Embodiment 1 will be omitted or simplified.

[0082] [2-1. Configuration of Control Device] First, the configuration of the control device according to this embodiment will be described with reference to FIG. 7. FIG. 7 is a block diagram showing the functional configuration of the control device 10a according to this embodiment. The control device 10a according to this embodiment is different from the control device 10 according to Embodiment 1 in that it further includes an operation information acquisition unit 17, a gaze information acquisition unit 18, and a video acquisition unit 19.

[0083] As shown in FIG. 7, the control device 10a according to this embodiment includes, in addition to the control device 10 according to Embodiment 1, an operation information acquisition unit 17, a gaze information acquisition unit 18, and a video acquisition unit 19. The operation information acquisition unit 17, the gaze information acquisition unit 18, and the video acquisition unit 19 are each provided with, for example, a communication interface and are communicably connected to the target device.

[0084] The operation information acquisition unit 17 is connected to a work terminal on which a user U such as a PC works and acquires information of the work terminal. For example, the operation information acquisition unit 17 acquires operation information regarding the operation being performed by the user U.

[0085] The gaze information acquisition unit 18 acquires the gaze information of the user U acquired by an eye tracker or the like worn by the user U. The eye tracker is a device for measuring the gaze of the user U. For example, it is attached to a head-mounted display (HMD) worn by the user U and measures the gaze of the user U wearing the HMD.

[0086] The video acquisition unit 19 acquires video information indicating the captured video from an imaging device that captures the space where the user U stays. The video acquisition unit 19 acquires video information indicating the captured video of the user U performing the work. The video acquisition unit 19 may acquire, for example, video information capturing the entire space. The captured video may be a single image or a plurality of images.

[0087] The operation information, gaze information, and video information are information used to determine the user's attention area.

[0088] The attention area determination unit 13 may determine the attention area of the user U based on at least one of the operation information, the line-of-sight information, and the video information. The attention area determination unit 13 may determine, based on the operation information, at least one of the range selected by the user U in the display on the user U's work terminal or the moving object displayed on the work terminal as the attention area. Further, the attention area determination unit 13 may determine the range in which the line of sight of the user U is directed as the attention area. Further, the attention area determination unit 13 may determine, based on the captured video captured by the imaging device, the first range where the user U is working or the second range where the user U is moving as the attention area. The first range is a range on the screen, and the second range is a range including the body part (for example, the fingertips) that is moving in the user U.

[0089] (Each embodiment) Examples of the control system according to each of the above embodiments will be described with reference to FIGS. 8A and 8B. FIGS. 8A and 8B are diagrams showing examples to which the control system 1 according to each embodiment is applied.

[0090] In FIG. 8A, a scene where the user U is working in a space 200 such as an office or a workroom, which is a business space, is shown. In the space 200, a display device 20 used by the user U for work, a lighting device 30 that illuminates the work area of the user U, and an imaging device 40 that images the inside of the space 200 are arranged. The imaging device 40 transmits the captured video to the video acquisition unit 19 according to Embodiment 2. In such a case, the control device controls at least one of the video of the display device 20 and the surrounding lighting environment according to the attention area of the user U.

[0091] In FIG. 8B, a scene where user U is working in a space 300 such as a rest room is shown. In the space 300, a display device 20, a lighting device 30 that illuminates the space 300, and an imaging device 40 that images the inside of the space 300 are arranged. The imaging device 40 transmits the captured imaging video to the video acquisition unit 19 according to Embodiment 2. In such a case, the control device checks the entire space 300 with the imaging device 40 and adjusts at least one of the indoor lighting around the person present according to the color of the clothes of the person present in the room, the posture of the person, etc., and generates the video to be displayed on the display device 20.

[0092] In FIG. 8B, there is a display device 20 behind user U1, user U2 is sitting in front (within the field of view of user U1), and the lighting device 30 illuminates the space 300. In this case, since the influence of the video of the display device 20 on the appearance (i.e., feature amount) within the field of view of user U1 is small, the control unit 14 generates a desired environment by changing the lighting control conditions of the lighting device 30.

[0093] Further, for example, when a desired environment has been realized with user U2 not in the space 300, and user U2 enters within the field of view of user U1 in the space 300, the control unit 14 adjusts the lighting control conditions of the lighting device 30 according to the color and posture of user U2's clothes so that they become the feature amounts before user U2 enters. For example, by imaging the entire space 300 with the imaging device 40, the color of user U2's clothes and posture can be acquired. Further, the colors of user U2's hair, skin, ornaments, etc. may also be acquired. Depending on the posture, the area of user U2 as seen from user U2 (for example, the area of user U2's clothes as seen from user U1) can be acquired. Then, when user U2 enters within the field of view of user U1, the control unit 14 changes the control conditions of the lighting device 30 (and / or the display device 20) so as to approach the feature amounts (for example, luminance distribution, color distribution, etc.) before user U2 enters the field of view or the target. Note that the feature amounts within the field of view of user U1 may be acquired based on, for example, the imaging video captured by the imaging device 40. Further, the control unit 14 may perform the same control when user U2 exits the field of view of user U1.

[0094] In this way, when the environment around the user U1 changes, the control unit 14 may control at least one of the display device 20 and the lighting device 30 according to the change.

[0095] (Method for determining the attention area) Hereinafter, a method for determining the attention area in the attention area determination unit 13 will be described with reference to FIGS. 9A to 9C. FIGS. 9A to 9C are diagrams showing examples of the method for determining the attention area according to each embodiment. In each embodiment, an example (FIG. 4A) in which the window selected by the user U is determined as the attention area R11 has been described. Hereinafter, other examples will be described.

[0096] When the control device includes the line-of-sight information acquisition unit 18, the control unit 14 may determine, as the attention area R11, the window or range in the video 20a on which the line of sight of the user U is focused. For example, as shown in FIG. 9A, the control unit 14 may determine, as the attention area R11, the window including the fixation point on which the user U is fixating (the window in which the fixation points overlap in FIG. 9A). Also, as shown in FIG. 9B, the control unit 14 may determine, as the attention area R11, the visual recognition range centered on the fixation point. The visual recognition range is, for example, in the horizontal direction of one eye, about 90 to 100 degrees on the ear side and about 60 degrees on the nose side, and in the vertical direction, about 60 degrees on the upper side and about 70 degrees on the lower side, but is not limited thereto, and a preset range may be used. Information indicating the visual recognition range is preset and stored in the storage unit 15.

[0097] Also, when there are a plurality of people in a space (for example, a conference room, a break room, etc.), the control unit 14 may individually determine the attention area of each user. For example, as shown in FIG. 9C, when there are four users U, the control unit 14 may determine attention areas R13 to R16 for each of the four users U. Note that, as shown in the attention areas R13 and R14 and the attention areas R15 and R16, at least a part of the attention areas may overlap. In the case of FIG. 9C, for example, on the table, a range other than the attention areas R13 to R16 is determined as the range outside the attention area.

[0098] Further, when the control device includes the video acquisition unit 19, the control unit 14 may determine the attention area based on the acquired captured video. The control unit 14 may determine, based on the video, a moving part or the like within the video (in the moving image), such as the user U's hand or the screen, as the attention area. The moving part is a moving object displayed on the screen, and may be, for example, the video of the other party in an online meeting, the video of a moving animal, or the like.

[0099] (Effects, etc.) The invention derived from the disclosure of this specification, and the effects and the like obtained by the invention will be described below.

[0100] (Invention 1) A video control device that controls the video displayed on a display device used for work performed by a user, the video control device including: an attention area determination unit that determines an attention area on which the user is focusing in a first video of the display device; a storage unit that stores in advance a video correction method for correcting the first video; a correction unit that generates a second video by correcting video outside the attention area, excluding the attention area of the user in the first video, according to the video correction method; and an output unit that outputs information for displaying the corrected second video. (For example, the control device 10).

[0101] Thereby, since the video outside the attention area is corrected, it is possible to suppress a decrease in the efficiency of the work being performed by the user as compared with the case where the entire screen is corrected. Further, when the video correction method stored in advance is a method capable of providing a desired environment, it is possible to provide the user with the desired environment. Therefore, it is possible to realize a video control device that can provide the user with a desired environment while suppressing a decrease in the efficiency of the work being performed by the user.

[0102] (Invention 2) The video control device of Invention 1 includes a mode reception unit that receives the mode selected by the user, and the correction unit corrects the video outside the target area according to the video correction method corresponding to the received mode.

[0103] In this way, correction can be performed according to the received mode, so various environments can be provided.

[0104] (Invention 3) The video control device of Invention 2, wherein the mode includes at least one of a concentration mode, a relaxation mode, an awakening mode, and a divergence mode.

[0105] In this way, correction can be performed according to the concentration mode, the relaxation mode, the awakening mode, and the divergence mode, so various environments can be provided.

[0106] (Invention 4) Furthermore, the video control device according to any one of Inventions 1 to 3 includes an input unit for inputting video generated by an external device, and the correction unit performs video correction on the input video.

[0107] In this way, even for video generated by an external device, it is possible to perform correction for providing a desired environment to the user while suppressing a decrease in the efficiency of the work being performed by the user, so the convenience of the control device is improved.

[0108] (Invention 5) The video control device according to any one of Inventions 1 to 4, wherein the target area determination unit determines, as the target area, an area occupied by a window or an application on which the user is operating on the screen of the display device.

[0109] In this way, by correcting the range outside the area occupied by the window or the application, it is possible to more reliably suppress a decrease in the efficiency of the work being performed by the user.

[0110] (Invention 6) The attention area determination unit is the video control device according to any one of Inventions 1 to 5, which determines, as the attention area, a range selected by the user or a range including a moving object displayed on the screen of the display device.

[0111] By doing so, by correcting the range selected by the user or the range including the moving object displayed on the screen, it is possible to more reliably suppress a decrease in the efficiency of the work being performed by the user.

[0112] (Invention 7) The video control device according to any one of Inventions 1 to 6 further includes a video acquisition unit that acquires an imaging video of the user performing the work, and the attention area determination unit determines, as the attention area, a range where the user is working or a range where the user is operating based on the imaging video.

[0113] By doing so, it is possible to easily determine the attention area based on the imaging video.

[0114] (Invention 8) The video control device according to any one of Inventions 1 to 7, wherein the attention area determination unit determines the attention area based on the line of sight of the user.

[0115] By doing so, it is possible to easily determine the attention area based on the line of sight of the user.

[0116] (Invention 9) The video control device according to Invention 2 or 3, wherein the correction unit corrects the gradation value of the video in the range outside the attention area so that the feature amount of the corrected second video approaches the feature amount corresponding to the mode according to the video correction method.

[0117] By doing so, by correcting the gradation value of the video in the range outside the attention area, the feature amount of the second video can be made closer to the target.

[0118] (Invention 10) The correction unit is a video control device according to any one of inventions 1 to 9 that replaces the video in the range outside the target area with other pre-stored video.

[0119] By performing correction to replace the video in the range outside the target area, the feature amount of the second video can be made closer to the target.

[0120] (Invention 11) The correction unit is a video control device according to invention 10 that calculates the feature amount of the video in the target area of the first video and determines the other video based on the calculated feature amount from among a plurality of candidate videos.

[0121] Thereby, other video corresponding to the feature amount of the video in the target area can be determined.

[0122] (Invention 12) The correction unit is a video control device according to any one of inventions 1 to 11 that does not correct the video in the target area of the first video.

[0123] Thereby, it is possible to more reliably suppress a decrease in the efficiency of the work being performed by the user.

[0124] (Invention 13) The correction unit is a video control device according to invention 2 or 3 that calculates the feature amount of the target area of the second video, determines whether the feature amount of the second video satisfies the target range based on the mode, and if the target range is not satisfied, corrects the video outside the target area again.

[0125] Thereby, since it is readjusted when the target is not satisfied, it is possible to more reliably provide a desired environment.

[0126] (Invention 14) The memory unit further stores in advance an illumination light correction method for correcting illumination light, and the correction unit further corrects illumination light irradiated by the illumination device and irradiating an area outside the user's target area according to the illumination light correction method. The output unit outputs information for irradiating the corrected illumination light. The video control device is any one of Inventions 1 to 13.

[0127] Accordingly, it is possible to further provide a desired environment for the user by using illumination light as well.

[0128] (Invention 15) In a space where a user stays, a target area determination unit that determines a target area on which the user is focusing, a memory unit that stores in advance an illumination light correction method for correcting illumination light, and illumination light irradiated by an illumination device, excluding the target area of the user, A correction unit for correcting the illumination light outside the target area according to the illumination light correction method, and an output unit for outputting information for irradiating the corrected illumination light. The illumination control device (for example, control device 10) is provided.

[0129] Accordingly, since the illumination light outside the target area is corrected, it is possible to suppress a decrease in the efficiency of the work performed by the user as compared with the case where the entire illumination light is corrected. In addition, when the illumination light correction method stored in advance is a method capable of providing a desired environment, it is possible to provide a desired environment for the user. Therefore, it is possible to realize an illumination control device that can provide a desired environment for the user while suppressing a decrease in the efficiency of the work performed by the user.

[0130] (Invention 16) The illumination control device according to Invention 15, further comprising a mode reception unit that receives a mode selected by the user, wherein the correction unit corrects illumination light outside the target area according to the illumination light correction method corresponding to the received mode.

[0131] Accordingly, it is possible to perform correction according to the received mode, and thus it is possible to provide various environments.

[0132] (Invention 17) The lighting control device of Invention 16, wherein the mode includes at least one of a concentration mode, a relaxation mode, a wake-up mode, and a divergence mode.

[0133] Thus, corrections corresponding to the concentration mode, the relaxation mode, the wake-up mode, and the divergence mode can be performed, so that various environments can be provided.

[0134] (Invention 18) The correction unit is the lighting control device according to any one of Inventions 15 to 17, which corrects at least one of the color temperature, illuminance, and color tone of the illumination light outside the attention area.

[0135] Thus, by correcting at least one of the color temperature, illuminance, and color tone of the illumination light, a desired environment can be provided to the user.

[0136] (Invention 19) A video control method executed by a video control device that controls a video displayed on a display device used for work performed by a user, the method including determining an attention area that the user is paying attention to in a first video of the display device, and correcting video outside the attention area, excluding the attention area of the user in the first video, in the first video according to a video correction method stored in a storage unit in advance to generate a second video, and outputting information for displaying the corrected second video.

[0137] Thus, the same effect as that of the above video control device is achieved.

[0138] (Invention 20) A lighting control method executed by a lighting control device, which determines a region of interest that a user is focusing on in a space where the user is staying, and performs a process for correcting lighting light irradiated by a lighting device, which is lighting light irradiating an area outside the region of interest excluding the region of interest of the user, according to a lighting light correction method stored in a storage unit in advance, and outputs information for irradiating the corrected lighting light.

[0139] This achieves the same effect as the above lighting control device.

[0140] (Other embodiments) As described above, the control device and the like according to one or more aspects have been described based on each embodiment. However, the present invention is not limited to these embodiments. As long as the gist of the present invention is not deviated from, various modifications conceived by those skilled in the art applied to these embodiments, or forms constructed by combining components in different embodiments may also be included in the present invention.

[0141] For example, the control device in each of the above embodiments may be incorporated in a display device such as a monitor or a television, or a lighting device, or may be realized as a single device. When the control device is realized as a single device, the control device is communicably connected to at least one of the display device and the lighting device. The control device may be realized by, for example, a server device.

[0142] Also, in each of the above embodiments, an example in which the control device corrects the entire video outside the region of interest has been described, but a part of the video outside the region of interest may be corrected. Also, an example in which the control device corrects the entire lighting light outside the region of interest has been described, but a part of the lighting light outside the region of interest may be corrected.

[0143] Also, in each of the above embodiments, an example in which the control device does not correct the video of the region of interest has been described, but the present invention is not limited to this, and the video of the region of interest may be corrected using a correction amount smaller than the correction amount for the range outside the region of interest.

[0144] In each of the above-described embodiments, each component may be configured by dedicated hardware or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

[0145] Also, the order in which each step in the flowchart is executed is for illustrative purposes to specifically describe the present disclosure, and may be an order other than the above. Also, some of the above steps may be executed simultaneously (in parallel) with other steps, or some of the above steps may not be executed.

[0146] Also, the division of the functional blocks in the block diagram is an example, and a plurality of functional blocks may be realized as one functional block, one functional block may be divided into a plurality, or some functions may be transferred to other functional blocks. Also, the functions of a plurality of functional blocks having similar functions may be processed by a single piece of hardware or software in parallel or in a time-sharing manner.

[0147] Also, the control device according to each of the above embodiments may be realized as a single device or may be realized by a plurality of devices. When the control device is realized by a plurality of devices, each component included in the control device may be distributed among the plurality of devices in any manner. When the control device is realized by a plurality of devices, the communication method between the plurality of devices is not particularly limited, and may be wireless communication or may be wired communication. Also, wireless communication and wired communication may be combined between the devices.

[0148] Further, each component described in each of the above embodiments may be implemented as software, or typically, may be implemented as an LSI which is an integrated circuit. These may be individually integrated into one chip, or may be integrated into one chip so as to include some or all of them. Here, an LSI is used as an example, but depending on the degree of integration, it may also be referred to as an IC, a system LSI, a super LSI, or an ultra LSI. Also, the method of integrating circuits is not limited to LSI, and it may be implemented by a dedicated circuit (a general-purpose circuit that executes a dedicated program) or a general-purpose processor. After manufacturing the LSI, an FPGA (Field Programmable Gate Array) that can be programmed, or a reconfigurable processor that can reconfigure the connection or setting of circuit cells inside the LSI may be used. Furthermore, if a technology for integrating circuits that replaces the LSI appears due to the progress of semiconductor technology or a derived alternative technology, naturally, the integration of components may be performed using that technology.

[0149] A system LSI is a super multi-functional LSI manufactured by integrating a plurality of processing units on one chip. Specifically, it is a computer system including a microprocessor, a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. A computer program is stored in the ROM. By operating according to the computer program, the microprocessor enables the system LSI to achieve its function.

[0150] Also, one aspect of the present disclosure may be a computer program that causes a computer to execute each characteristic step included in the video control method and the lighting control method shown in any one of FIGS. 2, 3, and 5.

[0151] Also, for example, the program may be a program for causing a computer to execute. Further, one aspect of the present disclosure may be a computer-readable non-transitory recording medium on which such a program is recorded. For example, such a program may be recorded on a recording medium and distributed or circulated. For example, the distributed program can be installed in a device having another processor, and by causing the processor to execute the program, it is possible to cause the device to perform each of the above processes.

Explanation of Signs

[0152] 10, 10a Control device (video control device, lighting control device) 11 Mode reception unit 12 Video input unit (input unit) 13 Region of interest determination unit 14 Control unit (correction unit) 15 Storage unit 16 Output unit 19 Video acquisition unit 20 Display device 20a, V1, V2 Video 30 Lighting device 100, 200, 300 Space R11, R12, R13, R14, R15, R16 Region of interest R21, R22 Regions outside the region of interest U, U1, U2 User

Claims

1. A video control device for controlling a video displayed on a display device used for work performed by a user, a focus area determination unit that determines a focus area on which the user is focusing in a first video of the display device; a storage unit that stores in advance a video correction method for correcting the first video; a correction unit that generates a second video by correcting video outside the focus area, excluding the focus area of the user, in the first video according to the video correction method; an output unit that outputs information for displaying the corrected second video; characterized by comprising: a video control device.

2. comprising a mode reception unit that receives a mode selected by the user, wherein the correction unit corrects the video outside the focus area according to the video correction method corresponding to the received mode, The video control device according to claim 1.

3. wherein the mode includes at least one of a concentration mode, a relaxation mode, a wake-up mode, and a divergence mode, The video control device according to claim 2.

4. further comprising an input unit to which video generated by an external device is input, wherein the correction unit performs video correction on the input video, The video control device according to any one of claims 1 to 3.

5. wherein the focus area determination unit determines, as the focus area, an area occupied by a window or an application on which the user is operating on the screen of the display device, The video control device according to any one of claims 1 to 3.

6. wherein the focus area determination unit determines, as the focus area, a range selected by the user or a range including a moving object displayed on the screen on the screen of the display device, The video control device according to any one of claims 1 to 3.

7. further comprising a video acquisition unit that acquires imaging video of the user performing the work, wherein the focus area determination unit determines, as the focus area, a range in which the user is working or a range in which the user is moving, based on the imaging video, The video control device according to any one of claims 1 to 3.

8. wherein the focus area determination unit determines the focus area based on the line of sight of the user, The video control device according to any one of claims 1 to 3.

9. wherein the correction unit corrects the gradation value of the video in the range outside the focus area so that the feature amount of the corrected second video approaches the feature amount corresponding to the mode according to the video correction method. The video control device according to claim 2 or 3.

10. The correction unit replaces the video in the range outside the target area with other pre-stored video. The video control device according to any one of claims 1 to 3.

11. The correction unit calculates the feature amount of the video in the target area among the first videos, and determines the other video based on the feature amount calculated from among a plurality of candidate videos. The video control device according to claim 10.

12. The correction unit does not correct the video in the target area among the first videos. The video control device according to any one of claims 1 to 3.

13. The correction unit calculates the feature amount of the target area of the second video, determines whether the feature amount of the second video satisfies the target range based on the mode, and if the target range is not satisfied, corrects the video outside the target area again. The video control device according to claim 2 or 3.

14. The storage unit further stores in advance a method for correcting illumination light for correcting illumination light. The correction unit further corrects the illumination light irradiated by the illumination device and irradiating the area outside the target area of the user according to the method for correcting illumination light. The output unit outputs information for irradiating the corrected illumination light. The video control device according to any one of claims 1 to 3.

15. A target area determination unit that determines a target area that the user is focusing on in the space where the user stays; A storage unit that stores in advance a method for correcting illumination light for correcting illumination light; A correction unit that corrects the illumination light irradiated by the illumination device and irradiating the area outside the target area excluding the target area of the user according to the method for correcting illumination light; An output unit that outputs information for irradiating the corrected illumination light; Comprising An illumination control device.

16. Comprising a mode reception unit that receives the mode selected by the user, The correction unit corrects the illumination light outside the target area according to the method for correcting illumination light corresponding to the received mode. The illumination control device according to claim 15.

17. The mode includes at least one of a concentration mode, a relaxation mode, a wake-up mode, and a divergence mode. The illumination control device according to claim 16.

18. The correction unit corrects at least one of the color temperature, illuminance, and color tone of the illumination light outside the target area. The lighting control device according to any one of claims 15 to 17.

19. A video control method executed by a video control device that controls video displayed on a display device used for work performed by a user, determining a region of interest that the user is focusing on in a first video of the display device, executing a process for generating a second video by correcting video outside the region of interest, excluding the region of interest of the user, in the first video according to a video correction method for correcting the first video stored in a storage unit in advance, outputting information for displaying the corrected second video, Video control method.

20. A lighting control method executed by a lighting control device, determining a region of interest that the user is focusing on in a space where the user stays, executing a process for correcting illumination light irradiated by an illumination device and irradiating an area outside the region of interest, excluding the region of interest of the user, according to an illumination light correction method stored in a storage unit in advance, outputting information for irradiating the corrected illumination light, Lighting control method.

Images