JP2017134492A - Image creation device, image creation method and image creation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a plurality of objects (for example, retrieval results) so that a relative relation among the objects is made clear.SOLUTION: An image creation device comprises: a virtual reality space definition unit that defines a virtual reality space including a plurality of display target objects; a field-of-view specification unit that specifies a field of view of a user in the virtual reality space on the basis of a reference viewing line of the user mounting a head-mounted display; a parameter value evaluation unit that evaluates a parameter value associated with each of the plurality of display target objects; an object arrangement determination unit that determines an arrangement position in the virtual reality space of the plurality of display target objects on the basis of a result of the evaluation so that an interval of the plurality of display target objects in the reference viewing direction becomes an interval in accordance with the parameter value; and an image creation unit that creates an image having the plurality of display target objects arranged in the field of view according to the arrangement position.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an image generation apparatus, an image generation method, and an image generation program.

  2. Description of the Related Art Conventionally, when displaying a search result, the search keyword is displayed in the vertical direction of the screen in order from the one having high relevance to the search keyword (see, for example, Patent Document 1).

Japanese Patent No. 4954043

  In the prior art, only the order of displayed objects (for example, search results) is known.

  The present invention has been made in view of the above points, and one of its purposes is to display a plurality of objects (for example, search results) so that the relative positional relationship among these objects can be understood. There is to do.

  In order to solve the above-described problem, one aspect of the present invention is an image generation apparatus for providing a virtual reality space to a user wearing a head-mounted display, the virtual reality space including a plurality of display target objects. A virtual reality space defining unit that defines the visual field, a visual field identifying unit that identifies the visual field of the user in the virtual reality space based on the reference visual line of the user wearing the head mounted display, and the plurality of display target objects A parameter value evaluation unit that evaluates a parameter value associated with each of the plurality of display target objects in the direction of the reference line of sight based on a result of the evaluation, so that an interval according to the parameter value , An object for determining an arrangement position of the plurality of display target objects in the virtual reality space And transfected arrangement determination unit, the plurality of display target objects is an image generating apparatus comprising an image generating unit, a generating an image disposed on said viewing according to the arrangement position.

  Another aspect of the present invention is an image generation method executed by a computer, based on a step of defining a virtual reality space including a plurality of display target objects and a reference line of sight of a user wearing a head mounted display. Determining the field of view of the user in the virtual reality space, evaluating the parameter values respectively associated with the plurality of display target objects, and the direction of the reference line of sight based on the result of the evaluation Determining an arrangement position of the plurality of display target objects in the virtual reality space such that an interval between the plurality of display target objects is an interval according to the parameter value, and the plurality of display target objects according to the arrangement position Generating an image in which a display target object is arranged in the field of view An image generation method comprising.

  According to another aspect of the present invention, a virtual reality space including a plurality of display target objects is defined in a computer, and a reference gaze of a user wearing a head mounted display is used in the virtual reality space. Identifying the user's field of view; evaluating a parameter value associated with each of the plurality of display target objects; and based on a result of the evaluation, the plurality of display target objects in the direction of the reference line of sight Determining an arrangement position of the plurality of display target objects in the virtual reality space so that the interval corresponds to the parameter value, and arranging the plurality of display target objects in the field of view according to the arrangement position Generating an image being processed, and generating an image Is a program.

  According to the present invention, a plurality of objects (for example, search results) can be displayed in such a way that the relative positional relationship among these objects can be understood.

1 is a hardware configuration diagram of an image display system 100 according to an embodiment of the present invention. It is a block diagram which shows the functional structure of the image generation apparatus 200 which concerns on one Embodiment of this invention. It is an example of a search result. 4 is an example of a search result image generated by an image generation unit 235. It is a figure which represents typically the display target object expressed by stereoscopic vision. It is a flowchart which shows operation | movement of the image generation apparatus 200 which concerns on one Embodiment of this invention.

[Description of Embodiment of the Present Invention]
First, the contents of the embodiment of the present invention will be listed and described. One embodiment of the present invention has the following configuration.

  (Item 1) An image generation apparatus for providing a virtual reality space to a user wearing a head-mounted display, the virtual reality space defining unit defining the virtual reality space including a plurality of display target objects, and the head Based on a reference line of sight of the user wearing the mount display, a field identification unit that identifies the field of view of the user in the virtual reality space, and a parameter value that evaluates a parameter value associated with each of the plurality of display target objects Based on the evaluation unit and the result of the evaluation, the virtual reality space of the plurality of display target objects is set such that an interval between the plurality of display target objects in the direction of the reference line of sight is an interval according to the parameter value. An object placement determination unit for determining the placement position in the Image generating apparatus and an image generation section that generates an image of the plurality of display target objects are disposed in the field of view.

  (Item 2) The object placement determination unit increases the difference between the parameter value corresponding to the first display target object and the parameter value corresponding to the second display target object. Item 2. The image generating device according to Item 1, wherein an arrangement position of each display target object is determined so that a distance between the display target object and the second display target object is increased.

  (Item 3) The object placement determination unit is configured such that an interval between the first display target object and the second display target object in the image is the parameter value corresponding to the first display target object and the first display target object. Item 3. The image generating device according to Item 2, wherein an arrangement position of each display target object is determined so as to be proportional to a difference from the parameter value corresponding to two display target objects.

  (Item 4) The image generation device according to any one of Items 1 to 3, wherein the plurality of display target objects are arranged in order of the parameter value.

  (Item 5) The image according to any one of Items 1 to 4, wherein the image generation unit generates a right-eye image and a left-eye image for stereoscopically expressing the plurality of display target objects. Generator.

  (Item 6) The image generation device according to item 5, wherein a convergence angle of each display target object in the right eye image and the left eye image is set based on the parameter value corresponding to the display target object.

(Item 7) The display object according to any one of items 1 to 6, wherein each display target object represents an individual element extracted by a search, and the parameter value is a search score associated with the individual element. Image generation device.
(Item 8) Each of the display target objects represents an item owned by a user in a computer game or a computer data file, and the parameter value is based on an attribute of the item or data file. The image generation apparatus according to any one of the above.

  (Item 9) An image generation method executed by a computer, wherein a virtual reality space including a plurality of display target objects is defined, and based on a reference line of sight of a user wearing a head mounted display, the virtual reality space Identifying the user's field of view, evaluating the parameter values respectively associated with the plurality of display target objects, and based on the result of the evaluation, the plurality of display target objects in the direction of the reference line of sight Determining an arrangement position of the plurality of display target objects in the virtual reality space so that the interval of the plurality of display target objects corresponds to the parameter value, and the plurality of display target objects in the field of view according to the arrangement position Generating a placed image, and generating the image Law.

  (Item 10) Identifying the field of view of the user in the virtual reality space based on the step of defining a virtual reality space including a plurality of display target objects in the computer and the reference line of sight of the user wearing the head mounted display A step of evaluating parameter values respectively associated with the plurality of display target objects, and an interval between the plurality of display target objects in the direction of the reference line of sight according to the parameter value based on the result of the evaluation Determining an arrangement position of the plurality of display target objects in the virtual reality space so as to have an interval, and generating an image in which the plurality of display target objects are arranged in the field of view according to the arrangement position And an image generation program for executing the steps.

[Details of the embodiment of the present invention]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a hardware configuration diagram of an image display system 100 according to an embodiment of the present invention. The image display system 100 includes an image generation device 200 and an image display device 120. As an example, the image generation device 200 and the image display device 120 are electrically connected by a wired cable 150 and can communicate with each other. Instead of the wired cable 150, a wireless connection may be used.

  The image generation device 200 is a device for generating an image displayed on the image display device 120. The image generation apparatus 200 includes at least a processor 202, a memory 204, a user input interface 206, and a communication interface 208. The image generation device 200 can be realized as, for example, a personal computer, a game console, a smartphone, a tablet terminal, or the like.

  The memory 204 stores at least an operating system and an image generation program. The operating system is a computer program for controlling the overall operation of the image generation apparatus 200. The image generation program is a computer program for the image generation apparatus 200 to realize each function of image generation processing described later. The memory 204 can also store data generated by the operation of the image generating apparatus 200 temporarily or permanently. Specific examples of the memory 204 include a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, a flash memory, and an optical disk.

  The processor 202 is configured to read a program stored in the memory 204 and execute processing according to the program. When the processor 202 executes an image generation program stored in the memory 204, each function of image generation processing described later is realized. The processor 202 includes a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit).

  The user input interface 206 is configured to receive an input for operating the image generating apparatus 200 from a user of the image display system 100. Specific examples of the user input interface 206 include a keyboard, a mouse, a touch pad, a voice input microphone, and a game controller.

  The communication interface 208 is a network interface for communicating with other devices via a network. For example, the communication interface 208 enables the image generation apparatus 200 to communicate with the search engine (server) 180 and the web server 190 via the Internet 170.

  The image display device 120 is a device for providing the user 160 with the image generated by the image generation device 200 as visual information. For example, the image display device 120 may be configured as a head mounted display (hereinafter referred to as HMD) as shown in FIG. Alternatively, the image display device 120 may be configured as a normal stationary display that is not an HMD. The image display device (for example, HMD) 120 may be a display capable of displaying a three-dimensional (stereoscopic) image.

When the image display device 120 is an HMD, the HMD 120 is mounted on the head of the user 160 so as to cover the field of view of the user 160 as illustrated. The HMD 120 includes a display 122 arranged in front of the user 160 wearing the HMD 120. The display 122 displays an image sent from the image generation apparatus 200. The display 122 may be configured as a non-transmissive display, for example. In this case, the external scene of the HMD 120 is blocked from the view of the user 160 and only the image displayed on the display 122 is delivered to the eyes of the user 160. An example of an image displayed on the display 122 of the HMD 120 is an image representing a virtual reality space (for example, a world created by a computer game) by computer graphics. The HMD 120 to which a non-transmissive display is applied as the display 122 can allow the user 160 to experience a feeling (immersive feeling) as if entering the virtual reality space by computer graphics by using such a virtual reality space image.

  The HMD 120 also includes a sensor 126 (for example, a magnetic sensor, an angular velocity sensor, an acceleration sensor, or a combination thereof) for detecting which direction the head of the user 160 wearing the HMD 120 is facing. May be. The sensor 126 outputs a value (magnetism, angular velocity, or acceleration value) corresponding to the direction and movement of the HMD 120. The direction of the head of the user 160 wearing the HMD 120 is calculated by processing the output value from the sensor 126 by an appropriate method. The detected head orientation of the user 160 may be used to change the display image of the display 122 so as to follow the movement when the user 160 moves the head. For example, when the user 160 turns his head to the right (or left, up, down), the display 122 displays a virtual scene in the right (or left, up, down) direction of the user in the virtual reality space. It may be. Thereby, the feeling of immersion in the virtual reality space experienced by the user 160 can be further enhanced. The HMD 120 may further include a speaker (headphones) (not shown) for outputting sound related to the virtual reality space.

  The HMD 120 may further include an eye tracking device (hereinafter referred to as ETD) 124 for detecting the line of sight of the user 160. For example, the ETD 124 includes an infrared light source and an infrared camera. The infrared light source irradiates infrared rays toward the eyes of the user 160 wearing the HMD 120. The infrared camera captures an image of the eyes of the user 160 irradiated with infrared rays. Infrared rays are reflected on the surface of the eyes of the user 160, but the reflectance of the infrared rays differs between the pupil and a portion other than the pupil. In the image of the eyes of the user 160 captured by the infrared camera, the difference in infrared reflectance appears as the brightness of the image. Based on this contrast, the pupil is identified in the image of the eyes of the user 160, and the direction of the line of sight of the user 160 is detected based on the position of the identified pupil.

  FIG. 2 is a block diagram illustrating a functional configuration of the image generation apparatus 200 according to an embodiment of the present invention. The image generation device 200 includes a storage unit 220 and a processing unit 230. The processing unit 230 further includes a search request unit 231, a search result acquisition unit 232, a search score evaluation unit 233, an object arrangement determination unit 234, an image generation unit 235, an image output unit 236, and a virtual reality space definition unit. 237 and a field of view specifying unit 238. The storage unit 220 corresponds to the memory 204 shown in FIG. The processing unit 230 and the units 231 to 238 included in the processing unit 230 are realized by the processor 202 illustrated in FIG. 1 reading out and executing the image generation program in the memory 204. Represents the function of.

  The storage unit 220 stores virtual reality space configuration information 223. The virtual reality space configuration information 223 is data relating to arrangement positions, shapes, colors, and the like of various objects (including display target objects) existing in the virtual reality space, which are necessary for generating an image representing the virtual reality space. is there. The virtual reality space definition unit 237 processes the virtual reality space configuration information 223 stored in the storage unit 220 to construct a virtual reality space including the display target object.

  The visual field specifying unit 238 specifies the visual field of the user 160 in the virtual reality space based on the reference visual line of the user 160. The reference line of sight of the user 160 is either the line of sight of the user 160 detected by the ETD 124 of the HMD 120 or the head direction of the user 160 detected by the sensor 126 of the HMD 120.

  The search request unit 231 is configured to transmit a search request based on an input from the user 160 to the search engine 180. Input from the user 160 is provided via the user input interface 206. For example, the user 160 instructs the image generation apparatus 200 what kind of search is desired by a method such as inputting a search keyword using a keyboard or uttering the search keyword into a microphone. The search request unit 231 transmits a search request including a search keyword input from the user 160 to the search engine 180 via the communication interface 208.

  The search result acquisition unit 232 is configured to acquire a search result from the search engine 180. The search result is information returned by the search engine 180 in response to the search request transmitted by the search request unit 231, and is related to the search keyword, that is, a plurality of items that are expected to have high suitability or matching degree with respect to the search keyword. Includes items. FIG. 3 shows an example of the search result. 3, the search result 300 includes item 1, item 2, item 3,..., Item N as items related to the search keyword. The “item” may include, for example, a URL (Uniform Resource Locator) for specifying a web page that includes content related to the search keyword, a simple explanation about the web page, and the like. As another example, when the search request is for an image as a search target, the “item” may be a thumbnail image (reduced image) of an image having a high degree of association with the search keyword.

  The search result 300 further includes a search score SC associated with each of the plurality of items. The search score SC represents the degree of relevance between the item corresponding to the search score and the search keyword as a numerical value. For example, the search score SC may indicate that the larger the numerical value, the higher the relationship between the item and the search keyword. In the example of FIG. 3, the search score SC1 of item 1 is 0.85, the search score SC2 of item 2 is 0.79, and the search score SC3 of item 3 is 0.67. In this case, item 1 is more relevant to the search keyword than item 2, and item 2 is more relevant to the search keyword than item 3.

The search score evaluation unit 233 is configured to evaluate a search score included in the search result. Specifically, the search score evaluation unit 233 compares the size of the search score SC for each of the plurality of items included in the search result acquired from the search engine 180, and determines each item based on this comparison as the search score SC. Sort in ascending order (eg descending order). Further, the search score evaluation unit 233 calculates a difference in the search score SC for each pair of adjacent items in the plurality of items after the rearrangement. When the search engine 180 provides a search result in which each item is already arranged in order of the search score SC, the process of rearranging the items is of course unnecessary. The example of FIG. 3 above represents an exemplary search result 300 that does not require such sorting. For this exemplary search result 300, the search score difference ΔSC ₁₂ (= SC1−SC2) between item 1 and item 2 is 0.06, and the search score difference ΔSC ₂₃ between item 2 and item 32 ( = SC2-SC3) is calculated as 0.12, and the difference in search score is calculated in the same manner for the other pairs.

  The object arrangement determination unit 234 is configured to determine the arrangement position of each item (display target object) when the search result is presented to the user 160 based on the evaluation result of the search score by the search score evaluation unit 233. . The arrangement position of the items will be described later.

  The image generation unit 235 is configured to generate a search result image based on the arrangement position of each item determined by the object arrangement determination unit 234. The search result image includes a plurality of display target objects. The display target object is an image element that represents an individual item provided as a search result from the search engine 180. In the search result image, each display target object is arranged according to the arrangement position determined by the object arrangement determination unit 234. For example, the search result image may be an image in which a display target object is arranged in the field of view of the user 160 in the virtual reality space. The generated search result image is output to the image display device 120 via the image output unit 236 and displayed on the image display device 120.

  FIG. 4 shows an example of a search result image generated by the image generation unit 235. In FIG. 4, the search result image 400 includes display target objects OBJ1, OBJ2, and OBJ3. The display target objects OBJ1, OBJ2, and OBJ3 correspond to items 1, 2, and 3 in FIG. For simplification of explanation, the search result image 400 is drawn to include only three display target objects. However, the search result image 400 includes any number of display target objects (for example, included in the search result 300). Of course, N display target objects corresponding to all items 1 to N) may be included.

  The display target objects OBJ1, OBJ2, and OBJ3 in the search result image 400 are arranged in the depth direction 410 of the image. As described above, items 1, 2, and 3 in the example of FIG. 3 have a large search score SC in this order. The arrangement order of the display target objects OBJ1, OBJ2, and OBJ3 is based on the magnitude relationship of the search score SC. For example, as illustrated, the display target object OBJ1 is arranged at the forefront in the depth direction 410 because the search score SC1 of the corresponding item 1 has the largest value. The display target object OBJ2 is arranged second from the front in the depth direction 410 because the search score SC2 of the corresponding item 2 is the second largest value, and the display target object OBJ3 is searched for the corresponding item 3 Since the score SC3 is the smallest value (among these three items), the score SC3 is arranged at the innermost position in the depth direction 410.

Further, the display target objects OBJ1, OBJ2, and OBJ3 in the search result image 400 are adjusted in the arrangement in the depth direction 410 of the image based on the search score SC. For example, two adjacent display target objects are arranged at intervals according to the search score difference ΔSC corresponding to the two display target objects. Referring to the example of FIG. 4, the distance _{d 12} between the display target object OBJ1 the display target object OBJ2 is set smaller than the interval _{d 23} of the display target object OBJ3 the display target object OBJ2. This is because the search score difference ΔSC ₁₂ between the item 1 and the item 2 in the example of the search score SC illustrated in FIG. 3 is smaller than the search score difference ΔSC ₂₃ between the item 2 and the item 3. Based. In other words, the two display target objects adjacent to each other in the search result image 400 are arranged at wider intervals as the search score difference ΔSC is larger. As an example of this special case, the two display target objects may be arranged at an interval proportional to the search score difference ΔSC. In the example of search score SC of FIG. 3, for example, distance _{d 23} between the display target object OBJ3 the display target object OBJ2 is twice (= ΔSC ₂₃ / ΔSC distance _{d 12} between the display target object OBJ2 the display target object OBJ1 ₁₂ = 0.12 / 0.06).

  The search result image 400 in FIG. 4 may be an image in which the display target objects OBJ1, OBJ2, and OBJ3 are arranged in the virtual reality space. For example, the search result image 400 represents a field of view that is an area that the user 160 is viewing (that is, visible) in the virtual reality space, and the display target objects OBJ1, OBJ2, and OBJ3 are included in the user field of the virtual reality space. They may be arranged along the user's reference line-of-sight direction (depth direction 410 in the drawing) in the order and interval described above.

  As described above, in the search result image 400, the display target objects corresponding to individual items included in the search result are arranged at intervals according to the search score. That is, the interval between two adjacent display target objects in the search result image 400 reflects the degree of relevance with the search keyword. Thereby, the user 160 can visually grasp how a plurality of items of the search result are distributed in relation to the search keyword from the interval of the display target objects in the search result image 400. . For example, in the example of FIG. 4, item 1 and item 2 have a relatively high relevance to the search keyword, but item 3 has a relatively low relevance to the search keyword compared to these two items. A determination can be made by the user 160.

  The display target objects OBJ1, OBJ2, and OBJ3 of the search result image 400 may be further expressed as a three-dimensional (stereoscopic) image. In this case, the search result image 400 includes an image for the right eye and an image for the left eye. FIG. 5 schematically shows a display target object that is stereoscopically represented. In FIG. 5, the right-eye image 510 </ b> R includes a right-eye object 530 </ b> R displayed for the right eye 520 </ b> R of the user 160, and the left-eye image 510 </ b> L is the left eye displayed for the left eye 520 </ b> L of the user 160. Object 530L. The right eye object 530R and the left eye object 530L correspond to, for example, any of the display target objects OBJ1, OBJ2, and OBJ3. The right eye line of sight 540R and the left eye line of sight 540L of the user 160 intersect at the convergence angle θ at the intersection IS. Thereby, the user 160 obtains the perception that the object 530 exists at the intersection IS located at the front (or back) by the distance D from the display surface 550.

By generating the right-eye image 510R and the left-eye image 510L so that the convergence angle θ created by the right-eye object 530R and the left-eye object 530L is an appropriate angle, the object 530 that the user 160 visually recognizes is displayed. It is possible to arbitrarily adjust the position in the depth direction. For example, the convergence angle θ may be set to an angle corresponding to the search score SC. As an example, the convergence angle theta ₁ of display target objects OBJ1 with large search score SC1, by setting larger than the convergence angle theta ₂ of the display target object OBJ2 with small search score SC2, of relevance to the search terms The high display target object OBJ1 can be viewed in front of the display target object OBJ2 having a low relevance to the search keyword. Note that the right-eye object 530R and the left-eye object 530L are drawn as images viewed from different viewpoints so that a stereoscopic effect due to binocular parallax can be obtained in addition to the stereoscopic effect due to the convergence angle. Also good.

  FIG. 6 is a flowchart showing the operation of the image generation apparatus 200 according to an embodiment of the present invention.

  First, in step S <b> 101, the search request unit 231 transmits a search request including a search keyword to the search engine 180. Next, in step S <b> 102, the search result acquisition unit 232 acquires a search result corresponding to the search keyword from the search engine 180. The search result includes a plurality of items related to the search keyword and a search score associated with each of the plurality of items.

  Next, in step S103, the search score evaluation unit 233 sorts a plurality of items provided from the search engine 180 as related to the search keyword based on the comparison of the search scores. This step S103 may be omitted when the search engine 180 provides a search result in which items are arranged in the order of the search score. Next, in step S104, the search score evaluation unit 233 calculates the difference between the search scores for any two items that are adjacent to each other in the order of the search score.

  Next, in step S105, the object arrangement determination unit 234 determines the arrangement position of each display target object representing a plurality of items included in the search result, based on the difference between the search scores calculated in step S104. For example, as illustrated in FIG. 4, the object arrangement determination unit 234 may determine the arrangement position so that the interval between the display target objects becomes wider as the difference between the search scores of adjacent items is larger. The object arrangement determining unit 234 may further set the interval between the display target objects so as to be proportional to the difference in the search score. In addition, as an example when the HMD is applied to the image display device 120, the object arrangement determination unit 234 arranges a plurality of display target objects side by side along the direction of the reference line of sight of the user 160 in the virtual reality space. Good. For example, the display target objects may be arranged in the center direction of the field of view of the user 160 in the virtual reality space (that is, the depth direction 410 viewed from the user 160) at intervals according to the search score. In this case, the visual field identification unit 238 identifies the visual field that is a visible area of the user 160 in the virtual reality space based on the output from the sensor 126 of the HMD 120 or the output from the ETD 124 of the HMD 120, and determines the object arrangement. The unit 234 arranges each display target object in the field of view along the reference gaze direction of the user 160 at intervals according to the search score.

  Next, in step S106, the image generation unit 235 generates a search result image in which each display target object is arranged at the arrangement position determined in step S105. For example, like the search result image 400 in FIG. 4, each display target object has a reference gaze direction of the user 160 (FIG. 4) at intervals corresponding to the search score difference and the search score difference between adjacent display target objects. Are arranged in the visual field of the user in the virtual reality space. The image generation unit 235 performs a search result including a right-eye image and a left-eye image so that a display target object arranged in front or behind has a stereoscopic effect due to a convergence angle or binocular parallax. An image may be generated. The image generation unit 235 also displays each display target object so that the display target object arranged in the foreground is visually recognized as large and / or bright and the display target object disposed in the back is viewed as small and / or dark. The size and / or brightness may be adjusted.

  In the above embodiment, the image generation apparatus 200 that generates the search result image for the search keyword is exemplified, but the present invention is not limited to such an image generation apparatus. For example, when sorting and displaying items owned by a user (player) in a computer game, the depth of the item is set at an interval according to a numerical value related to some attribute of the item (for example, rarity (rareness, rarity)). It is good also as arranging and displaying in a direction. Various computer data files (for example, document files and image files) are arranged and displayed in the depth direction at intervals according to numerical values related to some of their attributes (for example, file size, creation date, update date, etc.). It is good as well.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various change is possible within the range which does not deviate from the summary.

DESCRIPTION OF SYMBOLS 100 Image display system 120 Image display apparatus 150 Wired cable 170 Internet 180 Search engine 200 Image generation apparatus 202 Processor 204 Memory 206 User input interface 208 Communication interface 220 Storage part 230 Processing part 231 Search request part 232 Search result acquisition part 233 Search score evaluation Unit 234 object placement determination unit 235 image generation unit 236 image output unit 237 virtual reality space definition unit 238 view identification unit

Claims (10)

An image generation device for providing a virtual reality space to a user wearing a head mounted display,
A virtual reality space defining unit that defines the virtual reality space including a plurality of display target objects;
Based on the reference line of sight of the user wearing the head-mounted display, a field of view identifying unit that identifies the field of view of the user in the virtual reality space;
A parameter value evaluation unit that evaluates a parameter value associated with each of the plurality of display target objects;
Based on the result of the evaluation, the arrangement positions of the plurality of display target objects in the virtual reality space so that the interval between the plurality of display target objects in the direction of the reference line of sight is an interval according to the parameter value. An object placement determination unit for determining
An image generation unit configured to generate an image in which the plurality of display target objects are arranged in the field of view according to the arrangement position;
An image generation apparatus comprising:   The object placement determination unit increases the difference between the parameter value corresponding to the first display target object and the parameter value corresponding to the second display target object, and the first display target object in the image. The image generation apparatus according to claim 1, wherein an arrangement position of each display target object is determined so that an interval with the second display target object is increased.   The object placement determination unit is configured such that an interval between the first display target object and the second display target object in the image is equal to the parameter value corresponding to the first display target object and the second display target. The image generation apparatus according to claim 2, wherein an arrangement position of each display target object is determined so as to be proportional to a difference from the parameter value corresponding to the object.   The image generating apparatus according to claim 1, wherein the plurality of display target objects are arranged in order of the parameter value.   5. The image generation device according to claim 1, wherein the image generation unit generates a right-eye image and a left-eye image for stereoscopically expressing the plurality of display target objects. 6.   The image generation apparatus according to claim 5, wherein a convergence angle of each display target object in the right-eye image and the left-eye image is set based on the parameter value corresponding to the display target object. Each display target object represents an individual element extracted by the search,
The parameter value is a search score associated with the individual element.
The image generation apparatus according to claim 1. Each display target object represents an item owned by a user in a computer game, or a data file of a computer,
The parameter value is based on an attribute of the item or data file,
The image generation apparatus according to claim 1. An image generation method executed by a computer,
Defining a virtual reality space including a plurality of display target objects;
Identifying the user's field of view in the virtual reality space based on the reference line of sight of the user wearing the head mounted display;
Evaluating parameter values respectively associated with the plurality of display target objects;
Based on the result of the evaluation, the arrangement positions of the plurality of display target objects in the virtual reality space so that the interval between the plurality of display target objects in the direction of the reference line of sight is an interval according to the parameter value. A step of determining
Generating an image in which the plurality of display target objects are arranged in the field of view according to the arrangement position;
An image generation method including: On the computer,
Defining a virtual reality space including a plurality of display target objects;
Identifying the user's field of view in the virtual reality space based on the reference line of sight of the user wearing the head mounted display;
Evaluating parameter values respectively associated with the plurality of display target objects;
Based on the result of the evaluation, the arrangement positions of the plurality of display target objects in the virtual reality space so that the interval between the plurality of display target objects in the direction of the reference line of sight is an interval according to the parameter value. A step of determining
Generating an image in which the plurality of display target objects are arranged in the field of view according to the arrangement position;
An image generation program for executing

Images