Visual impairment experience system

Abstract

To provide a visual impairment experience system which enables experiencing of visual impairment different from person to person depending on a vision and a visual field.SOLUTION: A visual impairment experience system 1 comprises: a vision data input unit 5 to which information (vision data) on a vision of visual impairment experienced by a user is input; a visual field data input unit 6 to which information (visual field data) on a visual field of the visual impairment experienced by the user is input; and an image filter processing unit 8 that executes an image filter process for converting a prescribed input image into a visual impairment experience image. The image filter processing unit 8 includes a dot conversion part 80 that executes a process for converting a plurality of pixels constituting the input image into a plurality of dots which are pixels constituting the visual impairment experience image, and a dot size changing part 81 that changes a dot size of the visual impairment experience image on the basis of the vision data and the visual field data.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a visual impairment experience system for allowing a user to experience visual impairment. [Background technology]

[0002] A device that provides the experience of visual impairment in virtual reality has been proposed (see, for example, Patent Document 1). This conventional device applies filter processing to a predetermined area of ​​an image included in a virtual reality video that represents virtual reality content, simulating visual impairment caused by diabetes, and displays the result on the electronic display of a virtual reality headset. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6775717 Summary of the Invention [Problem to be solved by the invention]

[0004] However, while conventional devices can experience visual impairments caused by diabetes (such as "missing," "hazy," "blurred," and "distorted"), no proposals have been made for experiencing the visual acuity or field of vision of a visually impaired person. The way visually impaired people see differs from person to person depending on their visual acuity and field of vision. There has been a desire to develop a system that can experience the different visual impairments that each person experiences depending on their visual acuity and field of vision.

[0005] The present invention has been made in view of the above-mentioned problems, and aims to provide a visual impairment experience system that allows each person to experience different visual impairments depending on their eyesight and field of view. [Means for solving the problem]

[0006] The visual impairment experience system of the present invention is a visual impairment experience system for a user to experience a visual impairment, and comprises: a visual acuity data input unit into which information regarding the visual acuity of the visual impairment experienced by the user is input as visual acuity data; a visual field data input unit into which information regarding the visual field of the visual impairment experienced by the user is input as visual field data; and an image filter processing unit that performs image filtering to convert a specified input image into a visual impairment experience image based on the visual acuity data and the visual field data.The image filter processing unit comprises: a dot conversion processing unit that converts a plurality of pixels that are the pixels that make up the input image into a plurality of dots that are the pixels that make up the visual impairment experience image; and a dot size change processing unit that changes the size of the dots in the visual impairment experience image based on the visual acuity data and the visual field data.

[0007] With this configuration, when information on the visual acuity and visual field of the visual impairment experienced by the user (visual acuity data and visual field data) is input, the input image (e.g., a camera image taken by the user) is converted into a visual impairment experience image based on the visual acuity data and visual field data. At this time, the pixels of the input image are converted into dots in the visual impairment experience image, and the size of the dots in the visual impairment experience image is changed based on the visual acuity data and visual field data. In this way, when the input image is converted into a visual impairment experience image, an appropriate image filter effect that reflects the input visual acuity and visual field can be applied. This makes it possible to experience visual impairments that differ individually depending on the visual acuity and visual field.

[0008] In addition, in the visual impairment experience system of the present invention, the dot size change processing unit may be equipped with a visual acuity reproduction processing unit that changes the size of the dots in the visual impairment experience image so that the lower the visual acuity indicated by the visual acuity data, the larger the dot size of the visual impairment experience image, and reduces the number of dots in the visual impairment experience image to lower the resolution of the visual impairment experience image.

[0009] According to this configuration, the lower the visual acuity indicated by the input visual acuity data, the larger the size of the dots in the visual impairment experience image and the fewer the number of dots in the visual impairment experience image, thereby lowering the resolution of the visual impairment experience image. This makes it possible to impart an image filter effect (visual acuity reproduction effect, blur effect) that reflects the input visual acuity.

[0010] In addition, in the visual impairment experience system of the present invention, the dot size change processing unit may be equipped with a visual field reproduction processing unit that changes the size of the dots in the visual impairment experience image so that the lower the sensitivity of the visual field indicated by the visual field data, the smaller the dot size of the visual impairment experience image, and performs processing without changing the number of dots in the visual impairment experience image.

[0011] With this configuration, the lower the sensitivity of the visual field indicated by the input visual field data, the smaller the size of the dots in the visual impairment experience image. In this case, the number of dots in the visual impairment experience image remains unchanged. This allows for the application of an image filter effect (visual field reproduction effect) that reflects the input visual field.

[0012] In addition, in the visual impairment experience system of the present invention, the visual impairment experience system includes a color vision data input unit in which information regarding the color vision of the visual impairment experienced by the user is input as color vision data, and a memory unit that stores a color conversion table that shows the relationship between colors before color conversion and colors after color conversion determined according to the color vision data, and the image filter processing unit may include a color vision reproduction processing unit that refers to the color conversion table, applies color conversion processing to the visual impairment experience image according to the color vision data, and determines the color of the dots in the visual impairment experience image.

[0013] With this configuration, the color conversion table (a table showing the relationship between colors before and after color conversion, determined according to color vision data) is referenced to apply color conversion processing to the visual impairment experience image according to the input color vision data, thereby making it possible to appropriately determine the colors of the dots in the visual impairment experience image. This makes it possible to impart an image filter effect (color vision reproduction effect) that reflects the input color vision data.

[0014] In addition, in the visual impairment experience system of the present invention, when multiple pixels of the input image are converted into one dot of the visual impairment experience image, the dot conversion processing unit may perform a process of determining the color of the one dot by applying a predetermined color conversion process to the colors of the multiple pixels.

[0015] According to this configuration, when multiple pixels of an input image are converted into one dot of a visual impairment experience image, a predetermined color conversion process (e.g., a dropper extraction process) can be used to appropriately determine the color of the one dot based on the colors of the multiple pixels.

[0016] In addition, in the visual impairment experience system of the present invention, the dot size change processing unit may change the size of the dots in the visual impairment experience image so that the smaller the color density of the dots in the visual impairment experience image, the smaller the size of the dots in the visual impairment experience image, while performing processing without changing the number of dots in the visual impairment experience image.

[0017] With this configuration, the lighter the color density (color depth) of the dots in the visual impairment experience image, the smaller the size of the dots in the visual impairment experience image. In this case, the number of dots in the visual impairment experience image remains unchanged. This allows for an image filter effect (an effect that gives a more natural impression) that takes into account the effect that color density has on sensitivity.

[0018] The method of the present invention is a method executed in a visual impairment experience system for a user to experience visual impairment, and includes: a visual acuity data input step in which information regarding the visual acuity of the visual impairment experienced by the user is input as visual acuity data; a visual field data input step in which information regarding the visual field of the visual impairment experienced by the user is input as visual field data; and an image filtering processing step in which an image filtering process is performed to convert a predetermined input image into a visual impairment experience image based on the visual acuity data and the visual field data, and the image filtering processing step includes a dot conversion processing step in which a plurality of pixels that are the pixels that make up the input image are converted into a plurality of dots that are the pixels that make up the visual impairment experience image, and a dot size change processing step in which a process is performed to change the size of the dots in the visual impairment experience image based on the visual acuity data and the visual field data.

[0019] With this method, as with the above system, when information on the visual acuity and visual field of the visual impairment experienced by the user (visual acuity data and visual field data) is input, the input image (e.g., a camera image taken by the user) is converted into a visual impairment experience image based on the visual acuity data and visual field data. At this time, the pixels of the input image are converted into dots in the visual impairment experience image, and the size of the dots in the visual impairment experience image is changed based on the visual acuity data and visual field data. In this way, when the input image is converted into a visual impairment experience image, an appropriate image filter effect that reflects the input visual acuity and visual field can be applied. This makes it possible to experience visual impairments that differ individually depending on the visual acuity and visual field.

[0020] The program of the present invention is a program executed in a visual impairment experience system for a user to experience visual impairment, and the program causes the visual impairment experience system to execute a visual acuity data input process in which information regarding the visual acuity of the visual impairment experienced by the user is input as visual acuity data, a visual field data input process in which information regarding the visual field of the visual impairment experienced by the user is input as visual field data, and an image filtering process in which an image filtering process is performed to convert a predetermined input image into a visual impairment experience image based on the visual acuity data and the visual field data, and the image filtering process includes a dot conversion process in which a plurality of pixels that are the pixels that make up the input image are converted into a plurality of dots that are the pixels that make up the visual impairment experience image, and a dot size change process in which the size of the dots in the visual impairment experience image is changed based on the visual acuity data and the visual field data.

[0021] Like the above system, this program also inputs information about the visual acuity and visual field of the visual impairment experienced by the user (visual acuity data and visual field data), and converts the input image (such as a user's camera image) into a visual impairment experience image based on the visual acuity data and visual field data. At this time, the pixels of the input image are converted into dots in the visual impairment experience image, and the size of the dots in the visual impairment experience image is changed based on the visual acuity data and visual field data. In this way, when converting the input image into a visual impairment experience image, an appropriate image filter effect that reflects the input visual acuity and visual field can be applied. This makes it possible to experience visual impairments that differ individually depending on the user's visual acuity and visual field. [Effects of the Invention]

[0022] According to the present invention, it is possible to experience visual impairments that differ from person to person depending on the visual acuity and field of view. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a block diagram of a visual impairment experience system according to an embodiment of the present invention. [Figure 2]10A and 10B are explanatory diagrams showing examples of dot conversion processing and eyedropper processing. [Figure 3] 10A and 10B are explanatory diagrams showing an example of the correspondence between visual acuity and dot size in the dot size change process (visual acuity reproduction process). [Figure 4] 10A and 10B are explanatory diagrams showing an example of dot size change processing (vision reproduction processing) when the visual acuity of the left and right eyes is different. [Figure 5] FIG. 10 is an explanatory diagram showing an example of dot size change processing (vision reproduction processing). [Figure 6] FIG. 10 is an explanatory diagram showing an example of visual field data used in the dot size change process (visual field reproduction process). [Figure 7] 10 is an explanatory diagram showing an example of the correspondence relationship between the sensitivity of the visual field and the coefficient by which the dot size is multiplied in the dot size change process (visual field reproduction process). FIG. [Figure 8] FIG. 10 is an explanatory diagram showing an example of dot size change processing (field of view reproduction processing). [Figure 9] FIG. 10 is an explanatory diagram showing an example of color vision reproduction processing. [Figure 10] 10A and 10B are explanatory diagrams showing an example of dot size change processing (color density reflection processing). [Figure 11] FIG. 3 is a sequence diagram illustrating the operation of the visual impairment experience system according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] A visual impairment simulation system according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In this embodiment, a visual impairment simulation system used in fields such as sports and education will be described as an example. The visual impairment simulation system according to this embodiment has various functions that allow a user to experience visual impairment. These functions are realized by programs stored in a memory area of ​​the visual impairment simulation system.

[0025] The configuration of a visual impairment experience system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the visual impairment experience system according to this embodiment. As shown in FIG. 1, a visual impairment experience system 1 is connected to a user device 2 via a network N such as the Internet. In this embodiment, the visual impairment experience system 1 is configured, for example, by a cloud server device. The user device 2 is configured, for example, by a business computer device, and includes an input unit 3 such as a keyboard and a mouse, and a display unit 4 such as a display.

[0026] The visual impairment experience system 1 includes a visual acuity data input unit 5, a visual field data input unit 6, a color vision data input unit 7, an image filter processing unit 8, a memory unit 9, and an output unit 10. Information about the visual acuity of the visual impairment experienced by the user (e.g., "right visual acuity: 0.4, left visual acuity: 0.4") is input as visual acuity data to the visual field data input unit 5. Information about the visual field of the visual impairment experienced by the user (e.g., Goldmann perimeter test results; see Figure 6) is input as visual field data to the color vision data input unit 7. Information about the color vision of the visual impairment experienced by the user (e.g., "P type," see Figure 9) is input as color vision data to the color vision data input unit 7.

[0027] The image filter processing unit 8 has the function of performing image filter processing to convert a specified input image (for example, a camera image taken by the user device 2, including video) into a visual impairment experience image based on visual acuity data, visual field data, and color vision data, and is equipped with the following functional blocks for this purpose: a dot conversion processing unit 80, a dot size conversion processing unit 81, and a color vision reproduction processing unit 82.

[0028] The storage unit 9 is configured with a large-capacity memory or the like, and stores data and programs necessary for the user to experience visual impairment. The storage unit 9 may store camera images captured by the user device 2 as input images. The storage unit 9 also stores a color conversion table (see FIG. 9) that indicates the relationship between colors before color conversion (e.g., "C-type" colors) and colors after color conversion (e.g., "P-type" colors) determined according to color vision data.

[0029] The output unit 10 has a function of outputting the visual impairment experience image generated by the image filter processing unit 8 (converted from the input image) to the user device 2. The visual impairment experience image generated by the image filter processing unit 8 (converted from the input image) is sent from the output unit 10 to the user device 2 and displayed on the display unit 4 of the user device 2.

[0030] Here, each function of the image filter processing unit 8 will be described in detail with reference to the drawings. As shown in Fig. 2, the dot conversion processing unit 80 has a function of converting a plurality of pixels that make up the input image into a plurality of dots that make up the visual impairment experience image. For example, in Fig. 2, nine pixels "p1" to "p9" (pixels that make up the input image) are converted into one dot "d1" (pixels that make up the visual impairment experience image).

[0031] Furthermore, the dot change processing unit has a function of performing a process to determine the color of one dot by performing a predetermined color conversion process (such as "eyedropper processing") on the colors of the multiple pixels when multiple pixels of the input image are converted into one dot of the visual impairment experience image. For example, in Figure 2, when nine pixels "p1" to "p9" (pixels that make up the input image) are converted into one dot "d1" (pixels that make up the visual impairment experience image), the average value of the colors of "p1" to "p9" is determined as the color of "d1" by performing eyedropper processing.

[0032] The dot size change processing unit has the function of performing processing to change the size of the dots in the visual impairment experience image based on visual acuity data and visual field data, and is equipped with the functional blocks for this purpose: a visual acuity reproduction processing unit 810 and a visual field reproduction processing unit 811.

[0033] The visual acuity reproduction processing unit 810 has a function of changing the dot size of the visual impairment experience image so that the lower the visual acuity indicated by the visual acuity data, the larger the dot size of the visual impairment experience image, and also performing processing to reduce the number of dots in the visual impairment experience image to lower the resolution of the visual impairment experience image. Figure 3 is a diagram showing an example of a correspondence relationship between the visual acuity indicated by the visual acuity data and the dot size of the visual impairment experience image. Such a correspondence relationship (in which the lower the visual acuity, the larger the dot size) may be stored in the storage unit 9 as a predetermined correspondence table. In this case, the visual acuity reproduction processing unit 810 can determine the dot size of the visual impairment experience image from the visual acuity indicated by the visual acuity data by referring to the correspondence table stored in the storage unit 9. Furthermore, the visual acuity reproduction processing unit 810 may determine the dot size of the visual impairment experience image from the visual acuity indicated by the visual acuity data based on a predetermined calculation formula.

[0034] Furthermore, when the visual acuity of the left and right eyes differs, the visual acuity reproduction processing unit 810 determines the dot size of the visual impairment experience image from the visual acuity indicated by the visual acuity data according to the left and right visual fields. For example, as shown in Figure 4, in the case of "right visual acuity: 0.4, left visual acuity: 1.0," the size of the dots in the visual impairment experience image corresponding to the visual field of only the right eye is determined based on "right visual acuity: 0.4," and the size of the dots corresponding to the visual field of only the left eye is determined based on "left visual acuity: 1.0." The size of the dots corresponding to the overlapping part of the visual fields of the right and left eyes is determined based on the visual acuity of the eye with the better visual acuity, which in the example of Figure 4 is "left visual acuity: 1.0."

[0035] Fig. 5 is an explanatory diagram showing an example of dot size change processing (visual acuity reproduction processing) executed by the visual acuity reproduction processing unit 810. As shown in Fig. 5, the visual acuity reproduction processing unit 810 changes the size of the dots in the visual impairment experience image based on the visual acuity indicated by the visual acuity data (for example, "right visual acuity: 0.4, left visual acuity: 0.4"), and also reduces the number of dots in the visual impairment experience image to lower the resolution of the visual impairment experience image. In this way, a visual acuity reproduction image is obtained.

[0036] The visual field reproduction processing unit 811 has a function of changing the size of the dots in the visual impairment experience image so that the lower the visual field sensitivity indicated by the visual field data, the smaller the dot size of the visual impairment experience image, while performing processing without changing the number of dots in the visual impairment experience image. FIG. 6 is an explanatory diagram showing an example of visual field data used in the visual field reproduction processing. FIG. 6 also shows an example of Goldmann perimeter test results (the isopters (isosensitivity lines) of the left and right eyes are "V-4," "II-4," "I-4," and "I-3" from the outside). Such test results can be input as visual field data from the input unit 3 of the user device 2 by the user tracing them on the display unit 4 (screen) of the user device 2.

[0037] 7 is a diagram showing the correspondence relationship between the visual field sensitivity indicated by the visual field data and the coefficient by which the dot size of the visual impairment experience image is multiplied. Such a correspondence relationship (a correspondence relationship in which the lower the visual field sensitivity, the smaller the dot size) may be stored in the storage unit 9 as a predetermined correspondence table. In this case, the visual field reproduction processing unit 811 refers to the correspondence table stored in the storage unit 9, determines a coefficient from the visual field sensitivity indicated by the visual field data, and multiplies the coefficient by the dot size of the visual impairment experience image (the image before the visual field reproduction processing), thereby determining the dot size of the visual impairment experience image (the image after the visual field reproduction processing).

[0038] Fig. 8 is an explanatory diagram showing an example of dot size change processing (visual field reproduction processing) executed by the visual field reproduction processing unit 811. As shown in Fig. 8, the visual field reproduction processing unit 811 changes the size of the dots in the visual impairment experience image (image before visual field reproduction processing; for example, eyesight reproduction image) based on the visual field sensitivity indicated by the visual field data, and also performs processing to reduce the number of dots in the visual impairment experience image and lower the resolution of the visual impairment experience image. In this way, the visual field reproduction image (visual impairment experience image after visual field reproduction processing) is obtained.

[0039] The color vision reproduction processing unit 82 has a function of referring to a color conversion table, performing color conversion processing on the visual impairment experience image according to the color vision data, and determining the color of the dots in the visual impairment experience image. More specifically, the color vision reproduction processing unit 82 executes color conversion processing to convert the color of the visual impairment experience image (image before conversion) from "C type" to the color of the color vision input as color vision data. For example, if "P type" is input as color vision data, the color conversion table is referred to, and the color of the visual impairment experience image (image before conversion) is converted from "C type" to "P type" color.

[0040] The dot size change processing unit also has a function of changing the size of the dots in the visual impairment experience image so that the smaller the color density (color depth) of the dots in the visual impairment experience image, the smaller the dot size of the visual impairment experience image, and performing processing (color density reflection processing) that does not change the number of dots in the visual impairment experience image. More specifically, the dot size change processing unit determines the size of the dots from the color density (color depth) of the dots based on a predetermined calculation formula.

[0041] For example, as shown in FIG. 10, if the color of a dot in the visual impairment experience image is "black," the size of that dot is determined to be "1.0 (=1-(0+0+0) / 255×3)" based on the density of "black" of "0.0.0." If the color of a dot in the visual impairment experience image is "brown," the size of that dot is determined to be "0.839 (=1-(101+11+11) / 255×3)" based on the density of "brown" of "101.11.11." If the color of a dot in the visual impairment experience image is "red," the size of that dot is determined to be "0.666 (=1-(255+0+0) / 255×3)" based on the density of "red" of "255.0.0." Furthermore, if the color of the dot in the visual impairment experience image is "white," the size of the dot is determined as "0 (=1-(255+255+255) / 255×3)" based on the density of "white" which is "255.255.255."

[0042] The operation of the visual impairment experience system 1 configured as above will be described with reference to the sequence diagram of FIG.

[0043] When experiencing a visual impairment (displaying a visual impairment experience image) using the visual impairment experience system 1 of this embodiment, first, an original image (for example, an input image such as a camera image taken by the user device 2, including a video image) is input to the user device 2 (S1), and the input original image is then transmitted from the user device 2 to the visual impairment experience system 1 (S2).

[0044] Next, when visual acuity data of the visual impairment the user will experience (e.g., "right visual acuity: 0.4, left visual acuity: 0.4") is input to the user device 2 (S3), the input visual acuity data is transmitted from the user device 2 to the visual impairment experience system 1 (S4). The visual impairment experience system 1 performs a process of converting the pixels of the original image (input image) into dots (dot conversion process) based on the visual acuity data transmitted from the user device 2, and also performs a process of determining the color of the converted dots (pixel processing) (S5). The visual impairment experience system 1 also performs a process of changing the dot size and lowering the resolution based on the visual acuity data (visual acuity reproduction process) (S6). In this way, a visual acuity reproduction image (see FIG. 5) is generated. The visual acuity reproduction process of S6 may be performed simultaneously with the dot conversion process and the eyedropper process of S5.

[0045] Next, when visual field data (e.g., see FIG. 6) of the visual impairment experienced by the user is input to the user device 2 (S7), the input visual field data is transmitted from the user device 2 to the visual impairment experience system 1 (S8). The visual impairment experience system 1 performs a process (visual field reproduction process) to change the dot size of the visual acuity reproduction image based on the visual field data transmitted from the user device 2 (S9). In this way, a visual field reproduction image (see FIG. 8) is generated.

[0046] Next, when color vision data experienced by the user (e.g., "P type") is input to the user device 2 (S10), the input color vision data is transmitted from the user device 2 to the visual impairment experience system 1 (S11). Based on the color vision data transmitted from the user device 2, the visual impairment experience system 1 refers to a color conversion table (see FIG. 9) and executes color conversion processing according to the color vision data (e.g., processing to convert the color of the visual field reproduction image from "C type" to "P type") (S12).

[0047] 10, the visual impairment experience system 1 executes a process (color density reflection process) of changing the dot size of the visual field reproduction image according to the color density (color depth) of the dots in the visual field reproduction image (S13). The visual impairment experience image generated in this way by the visual impairment experience system 1 is transmitted from the visual impairment experience system 1 to the user device 2 (S14) and displayed on the display of the user device 2 (S15).

[0048] In the visual impairment experience system 1 of this embodiment, when information on the visual acuity and visual field of the visual impairment to be experienced by the user (visual acuity data and visual field data) is input, the input image (e.g., a camera image taken by the user device 2) is converted into a visual impairment experience image based on the visual acuity data and visual field data (see Figures 5 and 8). At this time, the pixels of the input image are converted into dots of the visual impairment experience image, and the size of the dots of the visual impairment experience image is changed based on the visual acuity data and visual field data. In this way, when the input image is converted into the visual impairment experience image, an appropriate image filter effect that reflects the input visual acuity and visual field can be applied. This makes it possible to experience visual impairments that differ individually depending on the visual acuity and visual field.

[0049] In this embodiment, the lower the visual acuity indicated by the input visual acuity data, the larger the size of the dots in the visual impairment experience image and the fewer the number of dots in the visual impairment experience image, thereby lowering the resolution of the visual impairment experience image (see Figure 3). This makes it possible to impart an image filter effect (visual acuity reproduction effect, blur effect) that reflects the input visual acuity (see Figure 5).

[0050] In addition, in this embodiment, the lower the sensitivity of the visual field indicated by the input visual field data, the smaller the size of the dots in the visual impairment experience image (see FIG. 7). In this case, the number of dots in the visual impairment experience image is not changed. This makes it possible to impart an image filter effect (visual field reproduction effect) that reflects the input visual field (see FIG. 8).

[0051] Furthermore, in this embodiment, a color conversion table (a table showing the relationship between colors before and after color conversion, determined according to color vision data) is referenced, and color conversion processing according to the input color vision data is performed on the visual impairment experience image, and the colors of the dots in the visual impairment experience image are appropriately determined (see FIG. 9). This makes it possible to impart an image filter effect (color vision reproduction effect) that reflects the input color vision data.

[0052] In addition, in this embodiment, when multiple pixels of the input image are converted into one dot of the visual impairment experience image, a predetermined color conversion process (e.g., a dropper extraction process) can be used to appropriately determine the color of the one dot based on the colors of the multiple pixels (see Figure 2).

[0053] Furthermore, in this embodiment, the lighter the color density (color depth) of the dots in the visual impairment experience image, the smaller the size of the dots in the visual impairment experience image (see FIG. 10). In this case, the number of dots in the visual impairment experience image does not change. This makes it possible to impart an image filter effect (an effect that gives a more natural impression) that takes into account the effect that color density has on sensitivity.

[0054] Although the embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these, and can be modified and changed according to the purpose within the scope of the claims. [Industrial Applicability]

[0055] As described above, the visual impairment experience system of the present invention has the effect of allowing each person to experience different visual impairments depending on their eyesight and field of view, and is useful in applications in fields such as sports and education. [Explanation of symbols]

[0056] 1 Visually impaired experience system 2. User Device 3 Input section 4 Display section 5. Visual acuity data input section 6. Field of view data input section 7 Color vision data input section 8 Image filter processing section 80-dot conversion processing unit 81 Dot size conversion processing unit 810 Vision reproduction processing unit 811 Field of view reproduction processing section 82 Color vision reproduction processing section 9 Memory section 10 Output section

Claims

1. A visual impairment experience system for allowing a user to experience a visual impairment, comprising: The visually impaired experience system includes: a visual acuity data input unit into which information about the visual acuity of the visual impairment experienced by the user is input as visual acuity data; a visual field data input unit into which information about the visual field of the visual impairment experienced by the user is input as visual field data; an image filter processing unit that performs image filtering processing to convert a predetermined input image into a visual impairment experience image based on the visual acuity data and the visual field data; Equipped with The image filter processing unit a dot conversion processing unit that converts a plurality of pixels that constitute the input image into a plurality of dots that constitute the visual impairment experience image; a dot size change processing unit that changes the size of dots in the visual impairment experience image based on the visual acuity data and the visual field data; A visual impairment experience system equipped with:

2. The dot size change processing unit The visual impairment experience system of claim 1, further comprising a visual acuity reproduction processing unit that changes the size of the dots in the visual impairment experience image so that the lower the visual acuity indicated by the visual acuity data, the larger the dot size of the visual impairment experience image, and reduces the number of dots in the visual impairment experience image to lower the resolution of the visual impairment experience image.

3. The dot size change processing unit The visual impairment experience system of claim 1, further comprising a visual field reproduction processing unit that changes the size of the dots in the visual impairment experience image so that the lower the sensitivity of the visual field indicated by the visual field data, the smaller the size of the dots in the visual impairment experience image, while performing processing that does not change the number of dots in the visual impairment experience image.

4. The visually impaired experience system includes: a color vision data input unit into which information regarding the color vision of the visual impairment experienced by the user is input as color vision data; a storage unit that stores a color conversion table that indicates the relationship between colors before color conversion and colors after color conversion, the color conversion table being determined in accordance with the color vision data; Equipped with The image filter processing unit The visual impairment experience system of claim 1, further comprising a color vision reproduction processing unit that refers to the color conversion table, applies color conversion processing to the visual impairment experience image according to the color vision data, and determines the color of the dots in the visual impairment experience image.

5. The dot conversion processing unit A visual impairment experience system as described in claim 1, wherein when multiple pixels of the input image are converted into one dot of the visual impairment experience image, a process is performed to determine the color of the one dot by applying a predetermined color conversion process to the colors of the multiple pixels.

6. The dot size change processing unit The visual impairment experience system of claim 1, wherein the size of the dots in the visual impairment experience image is changed so that the smaller the color density of the dots in the visual impairment experience image, the smaller the size of the dots in the visual impairment experience image, while processing is performed without changing the number of dots in the visual impairment experience image.

7. 1. A method performed in a visual impairment experience system for a user to experience a visual impairment, comprising: The method comprises: a visual acuity data input step in which information about the visual acuity of the visual impairment experienced by the user is input as visual acuity data; A visual field data input step in which information about the visual field of the visual impairment experienced by the user is input as visual field data; an image filtering step of performing an image filtering process to convert a predetermined input image into a visual impairment experience image based on the visual acuity data and the visual field data; Including, The image filtering step includes: a dot conversion processing step for converting a plurality of pixels constituting the input image into a plurality of dots constituting the visual impairment experience image; a dot size changing processing step for changing the size of dots in the visual impairment experience image based on the visual acuity data and the visual field data; A method comprising:

8. A program executed on a visual impairment experience system for allowing a user to experience visual impairment, The program is configured to: a visual acuity data input process in which information about the visual acuity of the visual impairment experienced by the user is input as visual acuity data; A visual field data input process in which information about the visual field of the visual impairment experienced by the user is input as visual field data; image filtering processing that performs image filtering processing to convert a predetermined input image into a visual impairment experience image based on the visual acuity data and the visual field data; Execute The image filtering process includes: A dot conversion process for converting a plurality of pixels that constitute the input image into a plurality of dots that constitute the visual impairment experience image; a dot size change process for changing the size of dots in the visual impairment experience image based on the visual acuity data and the visual field data; Including, the program.

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