Image Generation Device

Abstract

To adjust the three-dimensional feeling of at least one of a dynamic image and a static image so as to hardly tire a viewer.SOLUTION: An image generation device comprises: a fatigue data acquisition unit which acquires fatigue data indicating information about fatigue of a viewer; a parallax adjustment value data acquisition unit which calculates parallax adjustment value data including a parallax adjustment value on the basis of the fatigue data; and a parallax adjustment unit which adjusts a parallax of the image on the basis of the parallax adjustment value.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an image generating device. [Background technology]

[0002] Moving or still images displayed on a monitor can affect the function of the viewer's autonomic nervous system and cause fatigue. For example, depending on the degree of parallax, stereoscopic virtual reality (VR) images may not provide the viewer with the desired sense of popping out or depth, which can cause fatigue. For this reason, a technology is being used that links the display angle with the image displayed on the monitor, measures the distance between the viewer's pupils and the display angle that allows the viewer to view the image optimally, and adjusts the display mode of the image accordingly.

[0003] However, this technology requires the viewer to perform settings to adjust the image display mode, which can be inconvenient for the viewer. One example of a technology that solves this problem is the video system disclosed in Patent Document 1. This video system adjusts the parallax of the image within the range of the focal depth of the viewer's eyes, thereby reducing viewer fatigue when viewing the image. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-355808 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-described video system may cause viewer fatigue even if the parallax of the image is adjusted to within the range of the focal depth of the viewer's eyes.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide an image generating device that can adjust the three-dimensional effect of at least one of a moving image and a still image so as to reduce viewer fatigue. [Means for solving the problem]

[0007] One aspect of the present invention provides a display device including: a fatigue data acquisition unit that acquires fatigue data indicating information about fatigue, including at least a viewer's degree of fatigue; a parallax adjustment value data acquisition unit that calculates parallax adjustment value data including a parallax adjustment value based on the fatigue data; and a parallax adjustment unit that adjusts the parallax of an image based on the parallax adjustment value. and when the fatigue data indicates that the degree of fatigue of the viewer has changed beyond a predetermined threshold within a predetermined time, the parallax adjustment value data acquisition unit acquires the parallax adjustment value data indicating a parallax adjustment value that makes the amount of change per unit time of the parallax of the image equal to or less than a predetermined amount of change. It is an image generating device.

[0009] One aspect of the present invention is the image generating device described above, further comprising a recording unit in which the fatigue data and the parallax adjustment value data are recorded in association with each other, wherein the fatigue data acquisition unit acquires first fatigue data when a first still image in a moving image is displayed, and acquires second fatigue data when a second still image that is displayed after the first still image is displayed, and the parallax adjustment value data acquisition unit acquires the first fatigue data and the second fatigue data from the fatigue data acquisition unit and acquires the parallax adjustment value data corresponding to the fatigue data from the recording unit, and adjusts the parallax of the displayed image using the acquired first fatigue data and second fatigue data and a parallax adjustment value based on the parallax adjustment value data.

[0010] One aspect of the present invention is the image generating device described above, wherein the fatigue data acquisition unit acquires the fatigue data from each of a plurality of viewers who viewed a still image in a moving image, and the parallax adjustment value data acquisition unit acquires the parallax adjustment value data indicating a parallax adjustment value calculated based on the fatigue data acquired from each of the plurality of viewers who viewed a still image in the moving image. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide an image generating device that can adjust the stereoscopic effect of at least one of a moving image and a still image so as to reduce viewer fatigue. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram illustrating an example of a hardware configuration of an image generating apparatus according to an embodiment. [Figure 2] FIG. 2 is a diagram illustrating an example of a software configuration of an image generating apparatus according to an embodiment. [Figure 3] 10 is a diagram illustrating an example of a relationship between a viewer's degree of fatigue and a parallax adjustment value according to the embodiment. FIG. [Figure 4] FIG. 10 is a diagram illustrating an example of the relationship between the distance between the viewer's eyes and the display, the distance between the viewer's eyes, the parallax of the image, and the amount of protrusion of an object displayed on the display, according to an embodiment. [Figure 5] 10 is a flowchart illustrating an example of processing executed by the image generating device according to the embodiment. [Figure 6] 10A and 10B are diagrams illustrating an example of the relationship between the degree of fatigue of a viewer recorded by the image generating device according to the embodiment and the protrusion amount of an object displayed on a display. [Figure 7] 10 is a flowchart illustrating an example of processing executed by the image generating device according to the embodiment on a first still image that constitutes a moving image. [Figure 8] 10 is a flowchart illustrating an example of processing executed by the image generating device according to the embodiment on a second still image that constitutes a moving image. DETAILED DESCRIPTION OF THE INVENTION

[0013] [Embodiment] An image generating device and an image generating program according to an embodiment will be described with reference to FIGS.

[0014] First, the hardware configuration of an image generation device according to an embodiment will be described with reference to Fig. 1. Fig. 1 is a diagram showing an example of the hardware configuration of an image generation device according to an embodiment. As shown in Fig. 1, an image generation device 10 includes a processor 11, a main memory device 12, a communication interface 13, an auxiliary memory device 14, an input / output device 15, and a bus 16.

[0015] The processor 11 is, for example, a CPU (Central Processing Unit), which reads and executes an image generation program to realize each function of the image generation device 10. The processor 11 may also read and execute a program other than the image generation program to realize a function required to realize each function of the image generation device 10.

[0016] The main storage device 12 is, for example, a RAM (Random Access Memory), and stores in advance an image generation program and other programs that are read and executed by the processor 11.

[0017] The communication interface 13 is an interface circuit for communicating with other devices via a network, which may be, for example, a wide area network (WAN), a local area network (LAN), the internet, or an intranet.

[0018] The auxiliary storage device 14 is, for example, a hard disk drive (HDD), a solid state drive (SSD), a flash memory, or a read only memory (ROM).

[0019] The input / output device 15 is, for example, an input / output port. The input / output device 15 is connected to, for example, a display 20 and a detection device 30.

[0020] The display 20 is, for example, a liquid crystal display, and displays an image to be viewed by a viewer. The image may be a moving image or a still image.

[0021] The detection device 30 is a sensor that collects fatigue data from viewers indicating information about the viewer's fatigue while viewing an image. Examples of such sensors include a camera. For example, the detection device 30 captures the pupil movements of the viewer while viewing an image and generates fatigue data indicating at least one of a moving image and a still image obtained by capturing at least one of these images. The viewer's pupil movements may include at least one of myopia and myopia. The fatigue data may be stored in the auxiliary storage device 14, for example. The fatigue data based on the viewer's pupil movements may be obtained by acquiring changes in the brightness of the image and changes in the degree of pupil dilation over time, and calculating a fatigue level indicating the degree of fatigue, which is then included in the fatigue data. This fatigue level may be calculated using a general method for calculating fatigue levels based on pupil changes. While the fatigue data described here is based on the viewer's pupil movements, any fatigue data based on changes in the viewer's biometric information may be used. The biometric information may include the viewer's pupil movements, gaze, blinking, blood pressure, pulse rate, brain waves, changes in posture, and level of tension.

[0022] The bus 16 connects the processor 11, the main memory device 12, the communication interface 13, the auxiliary memory device 14, and the input / output device 15 in a manner that allows them to exchange data with one another.

[0023] Next, the software configuration of the image generating device according to the embodiment will be described with reference to Figures 2 to 4. Figure 2 is a diagram showing an example of the software configuration of the image generating device according to the embodiment. As shown in Figure 2, the image generating device 10 includes a fatigue data acquiring unit 101, a parallax adjustment value data acquiring unit 102, a parallax adjusting unit 103, and a recording unit 104.

[0024] The fatigue data acquisition unit 101 acquires fatigue data from at least one of the detection device 30 and the auxiliary storage device 14, for example.

[0025] The parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data that is used to adjust the parallax of an image viewed by a viewer and indicates a parallax adjustment value calculated based on fatigue data. The parallax adjustment value is a value that increases the parallax of an image viewed by a viewer as the value increases, and decreases the parallax of an image viewed by a viewer as the value decreases. The parallax adjustment value may be calculated by the parallax adjustment value data acquisition unit 102 or by an entity other than the parallax adjustment value data acquisition unit 102.

[0026] The parallax adjustment value is calculated based on, for example, at least one of the speed of pupil constriction and the speed of pupil dilation when the brightness of the image being viewed by the viewer changes. This type of pupil movement is called the pupillary light reflex. Furthermore, the parallax adjustment value calculated in this manner indicates that the slower the speed of pupil constriction and / or the speed of pupil dilation, the greater the degree of viewer fatigue, and the faster the speed of pupil constriction and / or the speed of pupil dilation, the less the degree of viewer fatigue. For example, this parallax adjustment value has the relationship with the degree of viewer fatigue shown in FIG. 3.

[0027] FIG. 3 is a diagram showing an example of the relationship between the viewer's level of fatigue and the parallax adjustment value according to the embodiment. The horizontal axis of FIG. 3 represents the viewer's level of fatigue H. The vertical axis of FIG. 3 represents the parallax adjustment value D0. The parallax adjustment value D0, the viewer's level of fatigue H1, and the viewer's level of fatigue H2 shown in FIG. 3 can be determined arbitrarily. The relationship between the viewer's level of fatigue and the parallax adjustment value shown in FIG. 3 is expressed by the following formula (1).

[0028]

number

[0029] The parallax adjustment unit 103 adjusts the parallax of the image viewed by the viewer based on the parallax adjustment value indicated by the parallax adjustment value data. Fig. 4 is a diagram for explaining an example of the relationship between the distance between the viewer's eyes and the display, the distance between the viewer's eyes, the parallax of the image, and the pop-out amount of an object displayed on the display according to an embodiment. Fig. 4 shows the distance Ws between the viewer's eyes and the display 20, the distance We between the viewer's right eye and left eye, the parallax d of the image, and the pop-out amount z of an object displayed on the display 20. For example, the parallax adjustment unit 103 adjusts the parallax of the image viewed by the viewer using the following equation (2) including the parallax adjustment value D.

[0030]

number

[0031] Furthermore, the parallax adjustment unit 103 may adjust the parallax of the image so that the amount of protrusion of an object displayed on the display 20 becomes zero. In other words, the parallax adjustment unit 103 may adjust the parallax of the image so that the image displayed on the display 20 does not have a three-dimensional effect. Then, the image whose parallax has been adjusted by the parallax adjustment unit 103 is displayed on the display 20.

[0032] Next, an example of processing executed by the image generating device 10 according to the embodiment will be described with reference to Fig. 5. Fig. 5 is a flowchart showing an example of processing executed by the image generating device according to the embodiment.

[0033] In step S11, the fatigue data acquisition unit 101 acquires fatigue data indicating information related to the viewer's fatigue.

[0034] In step S12, the parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data that indicates a parallax adjustment value that is used to adjust the parallax of an image and that is calculated based on fatigue data.

[0035] In step S13, the parallax adjustment unit 103 adjusts the parallax of the image based on the parallax adjustment value indicated by the parallax adjustment value data.

[0036] Next, an example of another process executed by the image generation device according to the embodiment will be described with reference to Fig. 6. When the image viewed by the viewer includes a first still image and a second still image, the image generation device 10 executes the process described below.

[0037] The first still image is a still image that constitutes a moving image viewed by a viewer. The second still image is displayed on the display 20 after the first still image that constitutes the moving image. Furthermore, for example, the first still image and the second still image are still images that are included in the moving image and that constitute different scenes from each other.

[0038] The fatigue data acquisition unit 101 acquires fatigue data generated each time at least one first still image is displayed. For example, the fatigue data acquisition unit 101 acquires fatigue data acquired by the detection device 30 when a plurality of first still images constituting a first scene included in a moving image are displayed on the display 20. Furthermore, the fatigue data acquisition unit 101 preferably executes the process of acquiring fatigue data generated each time at least one first still image is displayed two or more times, and preferably executes the process as many times as possible.

[0039] The parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data each time at least one first still image is displayed and fatigue data is acquired by the fatigue data acquisition unit 101. This parallax adjustment value data may indicate a parallax adjustment value calculated by the parallax adjustment value data acquisition unit 102, or may indicate a parallax adjustment value calculated by an entity other than the parallax adjustment value data acquisition unit 102. For example, the parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data each time fatigue data is acquired by the detection device 30 when a plurality of first still images constituting a first scene included in a moving image are displayed on the display 20.

[0040] The recording unit 104 associates the fatigue data with the parallax adjustment value data and records them each time at least one first still image is displayed and fatigue data is acquired. For example, the recording unit 104 acquires fatigue data acquired by the detection device 30 when a plurality of first still images constituting a first scene included in a moving image are displayed on the display 20, and each time parallax adjustment value data is generated based on the fatigue data, the recording unit 104 associates the fatigue data with the parallax adjustment value data and stores the association data in the auxiliary storage device 14. Through this process, the recording unit 104 generates data indicating the relationship shown in FIG. 6, for example, and stores the data in the auxiliary storage device 14.

[0041] FIG. 6 is a diagram showing an example of the relationship between the viewer's level of fatigue recorded by the image generating device according to the embodiment and the protrusion amount of an object displayed on the display. The horizontal axis of FIG. 6 represents the protrusion amount z of an object displayed on the display 20. The vertical axis of FIG. 6 represents the viewer's level of fatigue H. The points indicated by white circles in FIG. 6 correspond to pairs of fatigue data and parallax adjustment value data. The curve indicated by a solid line in FIG. 6 is an approximation curve calculated from the distribution trend of the multiple points indicated by white circles in FIG. 6. This approximation curve is calculated by, for example, the parallax adjustment unit 103. However, this approximation curve may be calculated by an entity other than the parallax adjustment unit 103.

[0042] Next, an example of processing executed by the image generating device 10 according to the embodiment for a first still image constituting a moving image will be described with reference to Fig. 7. Fig. 7 is a flowchart showing an example of processing executed by the image generating device according to the embodiment for a first still image constituting a moving image.

[0043] In step S211, the fatigue data acquiring unit 101 determines whether or not at least one first still image has been displayed. If the fatigue data acquiring unit 101 determines that at least one first still image has been displayed (step S211: YES), the process proceeds to step S212. On the other hand, if the fatigue data acquiring unit 101 determines that at least one first still image has not been displayed (step S211: NO), the fatigue data acquiring unit 101 waits until it determines that at least one first still image has been displayed.

[0044] In step S212, the fatigue data acquisition unit 101 acquires fatigue data.

[0045] In step S213, the parallax adjustment value data acquisition unit 102 acquires the parallax adjustment value data.

[0046] In step S214, the recording unit 104 records the fatigue data and the parallax adjustment value data in association with each other.

[0047] Next, an example of processing that the image generating device 10 according to the embodiment executes on a second still image that constitutes a moving image will be described.

[0048] The fatigue data acquisition unit 101 acquires fatigue data when at least one second still image is displayed on the display 20. For example, the fatigue data acquisition unit 101 acquires fatigue data acquired by the detection device 30 when a plurality of second still images constituting a second scene included in a moving image are displayed on the display 20.

[0049] When at least one second still image is displayed and fatigue data is acquired, the parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data indicating a parallax adjustment value used to adjust the parallax of the second still image and calculated based on the content recorded in the recording unit 104. For example, when fatigue data is acquired by the detection device 30 when a plurality of second still images constituting a second scene included in a moving image are displayed on the display 20, the parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data indicating a parallax adjustment value calculated based on the viewer's degree of fatigue indicated by the fatigue data and the approximation curve shown by the solid line in FIG. 6. This parallax adjustment value is not a parallax adjustment value calculated directly from the fatigue data. Furthermore, this parallax adjustment value may be calculated by the parallax adjustment value data acquisition unit 102 or by an entity other than the parallax adjustment value data acquisition unit 102.

[0050] The parallax adjustment unit 103 adjusts the parallax of the image viewed by the viewer based on the parallax adjustment value indicated by the parallax adjustment value data. This image may be a second still image that has not been displayed on the display 20 so far, or a still image that constitutes a moving image that will be displayed on the display 20 after the second scene. For example, when the parallax adjustment unit 103 acquires parallax adjustment value data indicating a parallax adjustment value calculated based on fatigue data acquired by the detection device 30 when a plurality of second still images were displayed on the display 20 and the approximation curve shown by the solid line in FIG. 6, the parallax adjustment unit 103 adjusts the parallax of the image that will be displayed on the display 20 from now on based on the parallax adjustment value data.

[0051] Next, an example of processing executed by the image generating device 10 according to the embodiment for a first still image constituting a moving image will be described with reference to Fig. 8. Fig. 8 is a flowchart showing an example of processing executed by the image generating device according to the embodiment for a second still image constituting a moving image.

[0052] In step S221, the fatigue data acquiring unit 101 determines whether at least one second still image has been displayed. If the fatigue data acquiring unit 101 determines that at least one second still image has been displayed (step S221: YES), the process proceeds to step S222. On the other hand, if the fatigue data acquiring unit 101 determines that at least one second still image has not been displayed (step S221: NO), the fatigue data acquiring unit 101 waits until it determines that at least one second still image has been displayed.

[0053] In step S222, the fatigue data acquisition unit 101 acquires fatigue data.

[0054] In step S223, the parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data indicating the parallax adjustment value calculated based on the contents recorded in the recording unit 104.

[0055] In step S224, the parallax adjustment unit 103 adjusts the parallax of the image based on the parallax adjustment value indicated by the parallax adjustment value data acquired in step S223.

[0056] The image generating device and image generating program according to the embodiment have been described above. The image generating device 10 acquires fatigue data indicating information regarding viewer fatigue. The parallax adjustment value data acquisition unit 102 calculates parallax adjustment value data including a parallax adjustment value based on the fatigue data. The parallax adjustment unit 103 adjusts the parallax of the image based on the parallax adjustment value. Specifically, the image generating device 10 reduces the three-dimensional effect of the image displayed on the display 20 as the viewer's level of fatigue increases, and increases the three-dimensional effect of the image displayed on the display 20 as the viewer's level of fatigue decreases. In this way, the image generating device 10 can adjust the three-dimensional effect of at least one of moving images and still images so as to reduce viewer fatigue.

[0057] Alternatively, the image may be a first still image constituting a moving image or a second still image displayed after the first still image. In this case, image generating device 10 acquires fatigue data generated each time at least one first still image is displayed. Next, image generating device 10 acquires parallax adjustment value data each time at least one first still image is displayed and fatigue data is acquired. Next, image generating device 10 records the fatigue data and the parallax adjustment value data in association with each other each time at least one first still image is displayed and fatigue data is acquired. Then, when at least one second still image is displayed and fatigue data is acquired, image generating device 10 acquires parallax adjustment value data that indicates a parallax adjustment value used to adjust the parallax of the second still image and that is calculated based on the content recorded in recording unit 104.

[0058] This allows image generation device 10 to adjust the three-dimensional effect of at least one of the moving image and the still image based on the actual degree of fatigue experienced by the viewer when viewing the first scene including the first still image. Therefore, image generation device 10 can adjust the three-dimensional effect of at least one of the moving image and the still image so as to further reduce viewer fatigue.

[0059] In the above embodiment, the detection device 30 is a camera that captures the pupil movement of a viewer viewing an image, but the present invention is not limited to this. If the detection device 30 is a camera, it may capture the viewer's skin, viewer's movements, etc.

[0060] When the viewer's skin is photographed, the parallax adjustment value is calculated based on the change over time in the color of the viewer's skin shown in at least one of the moving image and the still image.

[0061] Furthermore, when the viewer's actions are captured, the parallax adjustment value is calculated by applying machine learning to the viewer's actions captured in at least one of the moving images and still images.

[0062] In the above-described embodiment, the detection device 30 is a camera, but the present invention is not limited to this. For example, the detection device 30 may be a pulse sensor, an electroencephalogram sensor, or a saliva sensor. In addition, when the detection device 30 is a pulse sensor, the parallax adjustment value data acquisition unit 102 may acquire parallax adjustment value data indicating a parallax adjustment value calculated using heart rate variability (HRV) analysis.

[0063] However, it is preferable that the detection device 30 be able to collect fatigue data without contacting the viewer. That is, it is preferable that the fatigue data acquisition unit 101 acquires fatigue data generated using a sensor that does not contact the viewer. This allows the image generation device 10 to acquire fatigue data without bothering the viewer.

[0064] Furthermore, in the above-described embodiment, an example was given in which the functions of the image generating device 10 shown in FIG. 2 are realized by the processor 11 that reads and executes an image generating program, but this is not limited to this.

[0065] At least some of the functions of the image generating device 10 shown in Fig. 2 may be realized by hardware including circuitry such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), a GPU (Graphics Processing Unit), etc. Alternatively, at least some of the functions of the image generating device 10 shown in Fig. 2 may be realized by a combination of software and hardware.

[0066] In the above-described embodiment, the relationship between the viewer's level of fatigue and the parallax adjustment value is described as being expressed by the formula (1) in FIG. 3 , but the present invention is not limited to this. The parallax adjustment value may be smaller as the viewer's level of fatigue increases, and may be larger as the viewer's level of fatigue decreases.

[0067] Furthermore, when the fatigue data indicates that the degree of viewer fatigue has changed beyond a predetermined threshold within a predetermined time, the parallax adjustment value data acquisition unit 102 acquires parallax adjustment value data indicating a parallax adjustment value that keeps the amount of change in image parallax per unit time at or below a predetermined amount. This allows the image generating device 10 to avoid a situation in which the viewer becomes fatigued due to a sudden change in the degree of viewer fatigue that causes a sudden change in the image parallax.

[0068] Furthermore, the image generating device 10 acquires fatigue data from each of a plurality of viewers who have viewed at least one first still image. Then, the image generating device 10 acquires parallax adjustment value data indicating a parallax adjustment value calculated based on the fatigue data acquired from each of the plurality of viewers who have viewed at least one first still image. Such a parallax adjustment value may be, for example, a statistical value such as an average of the parallax adjustment values ​​calculated from the fatigue data acquired from each of the plurality of viewers. This allows the image generating device 10 to adjust the three-dimensional effect of at least one of the moving image and the still image so as to reduce viewer fatigue, even when multiple viewers simultaneously view images in a movie theater, for example.

[0069] In the above-described embodiment, the first still image and the second still image constitute the same moving image, but the present invention is not limited to this. Image generating device 10 can perform the above-described processing even when the first still image is a still image that constitutes a first moving image and the second still image is a still image that constitutes a second moving image different from the first moving image. This allows image generating device 10 to adjust the three-dimensional effect of at least one of the moving image and the still image so as to reduce viewer fatigue based on the viewer's level of fatigue when viewing the image in the past.

[0070] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and various combinations, modifications, substitutions, and / or design changes may be made within the scope that does not deviate from the gist of the present invention.

[0071] Furthermore, the effects of the above-described embodiments of the present invention are shown as examples. Therefore, the embodiments of the present invention may also achieve other effects that a person skilled in the art can recognize from the description of the above-described embodiments in addition to the above-described effects. [Explanation of symbols]

[0072] 10...image generating device, 11...processor, 12...main memory device, 13...communication interface, 14...auxiliary memory device, 15...input / output device, 16...bus, 20...display, 30...detection device, 101...fatigue data acquiring unit, 102...parallax adjustment value data acquiring unit, 103...parallax adjusting unit, 104...recording unit

Claims

1. a fatigue data acquisition unit that acquires fatigue data indicating information related to fatigue, including at least the viewer's degree of fatigue; a parallax adjustment value data acquisition unit that calculates parallax adjustment value data including a parallax adjustment value based on the fatigue data; a parallax adjustment unit that adjusts the parallax of an image based on the parallax adjustment value; Equipped with when the fatigue data indicates that the degree of fatigue of the viewer has changed beyond a predetermined threshold within a predetermined time, the parallax adjustment value data acquisition unit acquires the parallax adjustment value data indicating a parallax adjustment value that makes the amount of change per unit time of the parallax of the image equal to or less than a predetermined amount of change. Image generating device.

2. a recording unit in which the fatigue data and the parallax adjustment value data are recorded in association with each other, the fatigue data acquisition unit acquires first fatigue data when a first still image in a moving image is displayed, and acquires second fatigue data when a second still image that is displayed after the first still image is displayed; the parallax adjustment value data acquisition unit acquires the first fatigue data and the second fatigue data from the fatigue data acquisition unit, acquires the parallax adjustment value data corresponding to the fatigue data from the recording unit, and adjusts the parallax of the image to be displayed using the acquired first fatigue data and second fatigue data and a parallax adjustment value based on the parallax adjustment value data. The image generating device of claim 1 .

3. the fatigue data acquisition unit acquires the fatigue data from each of the plurality of viewers who viewed a still image in a moving image; the parallax adjustment value data acquisition unit acquires the parallax adjustment value data indicating a parallax adjustment value calculated based on the fatigue data acquired from each of the plurality of viewers who viewed a still image in the moving image. The image generating device of claim 2 .

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