KR101984993B1 - Visual field examination device using personalized marker control - Google Patents

Abstract

The present invention provides a visual field examination device capable of personalized marker control. The visual field examination device capable of personalized marker control comprises: a display unit displaying a visual field examination image including at least one marker; a photographing unit photographing an eyeball of a user looking at the visual field examination image; and a control unit analyzing the image photographed from the photographing unit, identifying a size change of pupils of the user, and determining whether the user identifies the marker based on the size change of the pupils.

Description

Field of the Invention [0001] The present invention relates to a vision checker capable of controlling a user-

Field of the Invention [0002] The present invention relates to a vision checker capable of user-customizable target control.

Glaucoma is one of the world's four major blindness diseases that causes blindness due to increased intraocular pressure and optic nerve damage. It can be avoided only through early detection and management because there is no obvious symptom and cure method.

Glaucoma is defined as a group of diseases that cause glaucomatous optic disc changes and corresponding visual field abnormalities due to various risk factors such as intraocular pressure rather than a single disease. Unless the intraocular pressure rises suddenly, visual field damage due to glaucoma is often not recognized until it progresses.

With the increase in the elderly population, glaucoma patients are steadily increasing. In Asians, the proportion of patients with normal glaucoma is about 70%.

In particular, the diagnosis of glaucoma in Korea can be made by specialized equipment with the help of medical staff in the hospital. However, the proportion of the population receiving regular screening is small, and early detection is more difficult. Among them, the visual field test is a test to assess the visual function of glaucoma patients and is an indispensable test for the diagnosis and follow-up of glaucoma.

Japanese Patent Application Laid-Open No. 10-2017-0075962, published on Jul. 07, 2014

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vision checker capable of user-customizable target control.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems which are not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a visual field checker capable of controlling a user-customized target, comprising: a display unit displaying a visual field inspection image including at least one target; And a control unit for analyzing the image captured by the photographing unit to recognize a change in size of the pupil of the user and determining whether the target is the target of the user based on a change in the size of the pupil.

The controller may further include a pupil recognition unit for recognizing a size change and movement of the pupil of the user, a state and eye health information for the user, and a personalized target for the user based on the obtained user information And a visual inspection unit for displaying the customized target on the display unit and determining whether the user is aware of at least one of the position and the brightness of the customized target and performing a visual field inspection for the user .

In addition, the display unit may be configured in the form of an HMD (Head Mount Display), and the pupil recognition unit may determine the direction of the user's gaze, and the visual field inspection unit may determine, based on the determined gaze direction, And determines a position at which the customized target is to be displayed, the position being determined based on the determined position of the center point.

In addition, the visual field inspection unit moves the center point of the visual field together as the user's gaze direction moves, and moves the display position of the customizable index together as the center point of the visual field moves.

The visual field inspection unit may display the customizable target at a central point of the visual field and determine a plurality of directions for moving the customizable target, wherein the plurality of directions have predetermined angular intervals, and the determined plurality of directions Moving the customized target sequentially for each of the plurality of directions, identifying a position where the customized target deviates from the perceived range of the user for each of the plurality of directions, and based on the identified positions, And periodically acquire and provide updated eye health information by updating by inspection.

In addition, the visual field inspection unit may check the position of departure when the customized target deviates from the cognitive range of the user while moving the customizable target in a specific direction, and if the customizable target is located at a predetermined distance And when the user recognizes the customized target again while moving the customized target by the predetermined distance, it is determined that the identified leaving position is a position corresponding to the blind spot of the user, If the user can not recognize the customizable target even when the customizable target is moved by the predetermined distance, the identified leaving position may be determined to be the boundary of the user's visual range with respect to the specific direction.

The visual field inspection unit may determine a boundary of the visual range in the visual range map, the boundary being determined as an area having a predetermined thickness, and displaying the customizable target at a plurality of points included in the area, A marker indicating a direction in which the customizable target is displayed is displayed within the visual range of the user, and when the marker is displayed on the customizable target of the user And determine a first boundary line of the visual range in the visual range map based on whether the user is aware of the customizable target displayed at the plurality of points.

The apparatus may further include a user input unit for receiving an input as to whether or not the target is the user and a learning unit for performing learning to determine whether the user is aware of the target, Determining a second boundary line of the visual range on the visual range map based on the user's input on whether or not the user is aware of the visibility of the user, displaying the customizable target on an area between the first boundary line and the second boundary line, Determining whether or not the user is recognized, obtaining an input of whether or not the user is recognized from the user input unit, comparing whether the user is recognized or not, and performing reinforcement learning based on the comparison result , And the visual field inspection unit calculates, based on the result of the comparison, The third boundary line can be determined.

Other specific details of the invention are included in the detailed description and drawings.

According to the disclosed embodiments, it is possible to provide a visual checker capable of enhancing the user's concentration and performing relatively accurate visual field inspection.

In addition, according to the disclosed embodiment, it is possible to provide a visual field inspector that can easily perform visual field inspection without the help of an expert.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a conceptual diagram showing a system including a visual checker capable of user-customizable target control according to an embodiment.
2 is a block diagram briefly showing a visual field checker capable of user-customizable target control according to an embodiment.
3 is a block diagram illustrating a control unit according to an embodiment of the present invention.
4 is a block diagram showing a visual field checker according to an embodiment.
5 is a view showing an example of performing a visual field inspection using a visual field checker.
FIG. 6 is a view illustrating an example of moving a visual field inspection image together as the user's gaze direction moves.
7 is a view showing an example of generating a view range map of the user.
8 is a view showing another example of generating a view range map of the user.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, Is provided to fully convey the scope of the present invention to a technician, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element. Like reference numerals refer to like elements throughout the specification and "and / or" include each and every combination of one or more of the elements mentioned. Although "first "," second "and the like are used to describe various components, it is needless to say that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense that is commonly understood by one of ordinary skill in the art to which this invention belongs. In addition, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

As used herein, the term "part" or "module" refers to a hardware component, such as a software, FPGA, or ASIC, and a "component" or "module" performs certain roles. However, " part " or " module " is not meant to be limited to software or hardware. A " module " or " module " may be configured to reside on an addressable storage medium and configured to play back one or more processors. Thus, by way of example, " a " or " module " is intended to encompass all types of elements, such as software components, object oriented software components, class components and task components, Microcode, circuitry, data, databases, data structures, tables, arrays, and variables, as used herein. Or " modules " may be combined with a smaller number of components and " parts " or " modules " Can be further separated.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

In this specification, a computer means all kinds of hardware devices including at least one processor, and may be understood as meaning a software configuration that operates in the corresponding hardware device according to the embodiment. For example, the computing device may be understood to include, but is not limited to, a smart phone, a tablet PC, a desktop, a notebook, and a user client and application running on each device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram showing a system including a visual checker capable of user-customizable target control according to an embodiment.

Referring to Figure 1, there is shown a vision checker 100, a user terminal 10 and a server 20.

In one embodiment, the visual field tester 100 may include, but is not limited to, a display for visual field inspection and a control unit for controlling the visual field inspector using visual field inspection software.

Although the form of the visual field tester 100 is not limited to that shown in FIG. 1, according to the embodiment shown in FIG. 1, the visual field tester 100 may have a form including a display of the HMD (Head Mount Display) type .

In this specification, the HMD refers to a virtual reality display device of the type mounted on the head of a user. However, what the HMD means is not limited to a specific type of device but can be understood to include all types of virtual reality devices capable of providing virtual reality (VR) images.

In one embodiment, the visual field tester 100 may perform a visual field check through the control unit, output the visual field check result, or transmit the visual field check result to another terminal. For example, the visual field tester 100 may transmit the visual field check result to the user terminal 10 or the server 20. [

According to the embodiment, the vision checker 100 may operate by software installed in the user terminal 10, may download software for performing a visual field inspection from the server 20, Data can be transmitted to the user terminal 10 or the server 20 and the data processed by the user terminal 10 or the server 20 can be received to generate the result of the visual inspection, 20 may be used to generate a visual field test result.

In the present specification, the configuration of the visual field tester 100 and the operations performed by the visual field tester 100 will be described. However, the visual field tester 100 includes the visual field tester 100, the user terminal 10 And a server 20. The term " system 20 "

In one embodiment, the vision checker 100 may be an HMD in which the user terminal 10 is inserted and used as a display and a control unit. In this case, the vision checker 100 may display an application installed in the user terminal 10, The visual field inspection may be performed using the display of the terminal 10. [

The visual field examination described in this specification may mean static visual field inspection and dynamic visual field inspection. The static visual field test is a test for finding the minimum brightness that can be perceived by the testee by changing the brightness according to the response of the testee while the surrounding target appears at the designated position. In addition, the dynamic visual field inspection means a method of detecting a boundary range of a visual field by pressing a button when a subject recognizes the target while a target of a specific brightness enters the center from the outside of the screen.

2 is a block diagram briefly showing a visual field checker capable of user-customizable target control according to an embodiment.

Each of the components shown in FIG. 2 shows only the components necessary for explaining the operation of the visual field checker 100 according to the disclosed embodiment, and the components not shown in FIG. Some of the components shown in FIG. 2 may be merged or omitted.

2, the vision checker 100 includes a display unit 120 displaying a visual field inspection image including at least one index, a photographing unit 130 photographing an eye of a user viewing the visual field inspection image, And a control unit 110 for analyzing the image photographed by the photographing unit to recognize a change in size of the user's pupil and determining whether the user's target is based on a change in the size of the pupil.

In one embodiment, the display portion 120 includes at least one display, the imaging portion 130 includes at least one camera or image sensor, and the control portion 110 includes at least one processor and memory .

5, one or more cameras 132, 134, and 136 included in the display unit 120 included in the visual field checker 100 and the photographing unit 130 photographing a user's eyeball are shown.

In one embodiment, the display portion 120 may refer to a screen of a smartphone. In this case, at least one of the cameras 132, 134, and 136 shown in FIG. 5 may refer to a front camera included in a smart phone.

For example, the visual checker 100 may include a virtual reality display device in which a smartphone is inserted to use a screen of a smartphone. In this case, the software for the visual field inspection according to the disclosed embodiment is executed in the smartphone, and the visual field checker 100 can perform the visual field inspection of the user using the screen of the smartphone and the front camera of the smart phone.

In one embodiment, the cameras 132, 134, and 136 may be disposed on one side of the display portion 120, and a plurality of cameras may be disposed to capture each of the user's eyes, The user may be configured to photograph the user's eyes through the through holes provided in the housing 120. [ For example, the camera may photograph a user's eyeball through a through hole provided at one point of the display unit 120 facing the pair of eyes of the user, or may photograph a center of the display unit 120, , The user's gaze direction, and the center point of the user's gaze.

In one embodiment, the display unit 120 may be configured as an HMD (Head Mount Display).

In an embodiment, the controller 110 provides a visual field inspection image using the display unit 120, and the visual field inspection image may be provided as a 360-degree virtual reality image, but the present invention is not limited thereto.

For example, the control unit 110 may display the 360-degree virtual reality space using the display unit 120 and display the target for the field-of-view inspection within the 360-degree virtual reality space.

In the disclosed embodiment, the control unit 110 provides a user-customized target and likewise can perform a customized vision check using the user-customized target.

3 is a block diagram illustrating a control unit 110 according to an embodiment of the present invention.

Referring to FIG. 3, the controller 110 may include a pupil recognition unit 112 for recognizing a size change and movement of the user's pupil, information on the user, And a visual inspection unit (116) for displaying the customized target on the display unit and determining whether or not the user is recognized and performing a visual field inspection on the user .

In one embodiment, the pupil recognition unit 112 may analyze the pupil image of the user photographed by the photographing unit 130 using an image analysis method, and may recognize the pupil movement of the user and the size change of the pupil of the user .

Therefore, the visual field tester 100 can not only determine the movement of the user's gaze using the pupil recognition unit 112 but also determine whether or not the user has recognized the target displayed on the visual field examination image based on the change in the pupil size of the user Can be determined.

In one embodiment, the customized target generator 114 may generate a customized target for the user based on the user information, and the user information may include personal information including the user's gender, age, etc., search information, , Purchased items, and the like, but are not limited thereto.

The customized target generating unit 114 can generate a customized target having a shape suitable for the user's taste based on the user information. For example, according to the user's taste, a customized target may not only be a star or a cross, but may also be a shape of a favorite artist's face or character, or a shape of a user's favorite character It may be composed of images as well.

In addition, the customized target may be composed of an image that the user may be interested in. Therefore, the user can focus attention on the target without feeling bored during the visual field test.

The field-of-view inspecting unit 116 performs a field-of-view inspection of the user using the above-described components.

In one embodiment, the visual field examiner 116 can determine the center point of the user's field of view in the field of view inspection image based on the visual direction determined using the pupil recognition unit 112, and determine the location to display the customized target have.

Referring to FIG. 5, an example of the visual field inspection image 200 is shown. In one embodiment, the field of view inspection image 200 may have a range 220 in which a target is displayed, and the range 220 may be set wider than that of a general person.

A center point 210 of the user's field of view is set in the visual field inspection image 200 and a center point 210 of the field of view is displayed in the image 200 to guide the user to look at the center point 210 .

In addition, the visual field inspection section 116 can display the customizable target 300 within the range 220. [ If it is determined that the user recognizes the customized target 300, the visual field inspection unit 116 can determine that the position is within the visual range of the user. On the other hand, when it is determined that the user does not recognize the customizable target 310, the visual field inspection unit 116 can determine that the position is outside the visual range of the user.

The visual field inspection unit 116 adjusts the brightness of the customizable indicator 300 and determines whether or not the user selects the customizable indicator 300 based on the brightness of the customizable indicator 300 at the time when the user is determined to recognize the customizable indicator 300 ) Is displayed, it is possible to determine the minimum brightness that can be perceived.

The field of view inspection unit 116 can determine the user's field of view 230 by determining whether the user is aware of a plurality of locations.

In one embodiment, the visual field tester 100 may be configured in the form of an HMD, and the visual field tester 100 may display the same visual field inspection image regardless of the user's head motion.

On the other hand, according to the embodiment, the field-of-view inspecting unit 116 can move the field-of-view inspection image together with the moving direction of the user's gaze using the pupil recognition unit 112. [

Referring to FIG. 6, an example in which a visual field inspection image is moved together as the user's gaze direction moves.

In one embodiment, the field-of-view inspecting unit 116 recognizes that the user's gaze direction is moved using the pupil recognizing unit 112, moves the center point 210 of the field of view together as the user's gaze direction moves , The position at which the customizable target 300 is displayed can be moved together as the center point 210 of the field of view moves.

For example, referring to FIG. 6, the visual field inspection unit 116 may move the customized target 300 in the first direction 420 in the same direction when the user's direction of sight moves in the first direction 410 .

In one embodiment, the field of view inspection unit 116 determines the position at which the customized target 300 is to be displayed, and the position of the customized target 300 may be determined based on the position of the center point 210. [ For example, the position of the customizable target 300 may be determined by the direction from the center point 210 and the distance 400. Thus, when the center point 210 of the user's field of view moves, the position of the customizable index 300 moves accordingly.

In this case, even when the user moves his or her gaze to see the target 300, the target 300 moves accordingly, so that even if the user inadvertently moves his / her gaze from the center point 210, Can be measured. Thus, the user can comfortably measure the field of view without the inconvenience of continually watching the center point 210.

In one embodiment, the visual field examiner 116 displays the personalized target 300 at the center point 210 of the field of view and determines a plurality of directions for moving the personalized target 300, As shown in Fig.

For example, the visual field inspection unit 116 can sequentially move the customizable targets 300 with respect to the entire 360-degree direction even if the visual field inspection unit 116 has a predetermined angular interval.

In addition, the visual field inspection unit 116 sequentially moves the customizable target 300 for each of the determined plurality of directions, and when the customizable target 300 deviates from the recognition range of the user for each of the plurality of directions You can check the location.

For example, as the customizable target 300 moves outwardly from the center point 210 of the field of view, it can deviate from the perception of the user from a specific point in time. The visual field inspection unit 116 can determine that the position where the customizable target 300 is out of the cognitive range of the user is the boundary point of the visual range of the user.

In addition, the field-of-view inspection unit 116 may generate a map of the user's field of view based on the identified locations.

For example, the field-of-view inspection unit 116 may connect the boundary points of the user's field of view obtained at predetermined angular intervals to generate a field-of-view map of the user.

In addition, the field-of-view inspecting section 116 determines one or more locations to display the customized target 300 based on the center point 210 of the field of view. For example, the position at which the customized target 300 is displayed may be arranged based on a predetermined interval, but is not limited thereto.

The visual field inspection unit 116 sequentially displays the customizable target 300 at each determined position and adjusts the brightness of the customizable target 300 at each position to determine the minimum brightness that can be perceived by the user at each position can do.

The field-of-view inspection unit 116 can generate a field-of-view brightness map in which the minimum brightness perceivable by the user is indicated by numerals, colors, brightness, graphs and the like at each position.

In one embodiment, the field-of-view inspecting unit 116 merges the field-of-view range map obtained based on the dynamic field-of-view inspection and the field-of-view luminance map obtained based on the static field of view, A visual map indicating brightness can be generated.

In one embodiment, in determining the visual range of the user, the visual field inspection unit 116 may exclude a range in which the user does not perceive the target having a predetermined brightness or less from the visual range of the user.

In one embodiment, the dynamic field of view and static field of view may be performed separately, but may be performed simultaneously or together. For example, when determining the boundary of the user's visual range while moving the customizable target 300, the brightness of the customizable target 300 is changed at a position around the boundary to obtain the minimum brightness that can be perceived by the user . In addition, the visual field inspection unit 116 may first acquire the boundary of the visual range of the user first, and then obtain the minimum brightness that can be perceived by the user at a plurality of points within the obtained range.

The order and the method of performing the dynamic visual field inspection and the static visual field inspection are not limited, and various other methods may be applied.

Referring to FIG. 7, an example of generating a view range map of a user is shown.

In one embodiment, when the customizable target 300 deviates from the recognition range of the user during the movement of the customizable target 300 in a specific direction, the visual field inspection unit 116 confirms the position where the target is removed, The customizable target table 300 can be further moved by a predetermined distance.

At this time, when the user recognizes the customized target 300 again while moving the customizable target 300 by the predetermined distance, it is possible to determine that the checked leaving position is a position corresponding to the blind spot of the user have.

For example, while moving the customizable target 300 in a specific direction, a position 240 where the customizable target 310 is not recognized can be identified. At this time, the visual field inspection unit 116 can further move the customizable target 310, and the customizable target 320 can be recognized again. In this case, it can be determined that the identified position 240 is not the limit of the visual field but the point corresponding to the blind spot of the user.

According to the embodiment, the position of the blind spot may be natural due to the biological structure of the eye, but it may be judged that there is a problem in the eye depending on its position, shape, size and number. In this specification, the term is used as a concept covering all kinds of blind spots.

In one embodiment, if the user does not recognize the customizable target even while moving the customizable target by the predetermined distance, it is determined that the identified leaving position is the boundary of the user's field of view with respect to the specific direction . For example, if the user does not recognize the customized target 330 and the user does not recognize the customized target 330, the user can determine that the position is the boundary 230 of the user's viewing range.

Referring to FIG. 8, another example of generating a view range map of a user is shown.

In one embodiment, the field of view inspection unit 116 determines a boundary of the field of view in the field of view map, the boundary being determined as a region 240 having a predetermined thickness, It is possible to determine whether or not the user is aware by displaying the customized target 300 on the spot.

For example, when determining the boundary of the user's field of view according to the above-described embodiment, an error may occur. Therefore, the boundary of the visual range is determined as the area 240 considering the predetermined error range from the boundary of the determined visual range, and the customizable target 300 is displayed with respect to a plurality of positions in the area 240, It is possible to perform retesting so as to determine the value

In one embodiment, when it is determined that the user does not recognize the personalized target 300, the visual field inspection unit 116 displays the marker 500 indicating the direction in which the personalized target 300 is displayed within the visual range of the user , It is possible to determine whether or not the marker 500 is displayed on the user's personalized target 300 after being displayed.

For example, to determine a more accurate field-of-view range, the field-of-view inspection unit 116 may provide the user with a hint as to where the customized target 300 is displayed. When the customized target 300 is displayed near the visual field boundary of the user, the user may not be able to find the target even though the target can be recognized. Therefore, the visual field inspection unit 116 may provide additional hints to the user, Can be grasped more specifically.

If the user does not recognize the personalized target 300, the visual field inspection unit 116 displays a video or an image that can attract the user at a position where the personalized target 300 is displayed, You can check again.

In one embodiment, the field of view inspection unit 116 may determine a first boundary of the field of view in the field of view map based on whether the user is aware of the customized target 300 displayed at the plurality of points.

The first borderline may refer to a boundary of a user's field of view that is specifically determined as a line, not a region.

4 is a block diagram showing a visual field checker according to an embodiment.

Referring to FIG. 4, the vision checker 100 includes a control unit 110, a display unit 120, and a photographing unit 130 as shown in FIG.

The visual checker 100 may further include a user input unit 140 for receiving an input as to whether or not the target is a user, and a learning unit 150 for performing learning to determine whether the user is aware of the target.

In one embodiment, the user input 140 may include, but is not limited to, a button that can be pressed to confirm that the user has recognized the target.

In one embodiment, the learning unit 150 may perform machine learning, and the machine learning may be performed by the vision checker 100, but may be performed by the external server 20, 20 to the visual field tester 100 and stored.

In one embodiment, the learning unit 150 may generate a visual field map in the field-of-view map based on the user's input as to whether the user is aware of the customized target 300 displayed at a plurality of points in the area 240 shown in FIG. The second boundary of the range can be determined.

For example, similar to the above-described embodiment, the personalized target 300 is displayed in the area 240 to perform re-inspection, and the visual range of the user is specifically indicated based on whether or not it is received from the user input unit 140 The second boundary line can be determined.

At this time, the first boundary line and the second boundary line may be different. Accordingly, the visual field inspection unit 116 displays the customizable target 300 at a plurality of points between the first boundary line and the second boundary line to determine whether or not the user is recognized, Can be performed.

In determining whether or not the user is recognized, the visual field inspection unit 116 uses the pupil recognition unit 112 to determine a pupil change of the user, and at the same time acquires an input on whether or not the user is recognized from the user input unit 140 .

At this time, the visual field inspection unit 116 compares the judgment result obtained through the pupil recognition unit 112 with the input result through the user input unit 140, and finally determines the third boundary line in the visual range map based on the comparison result have.

For example, the visual field inspection unit 116 may determine the third boundary line using a midpoint between the position of the boundary obtained using the pupil recognition unit 112 and the position of the boundary obtained from the user input unit 140, The boundary position of the actual user's view can be estimated and obtained from the position of the boundary obtained using the pupil recognition unit 112 and the position of the boundary obtained from the user input unit 140 using the learned model.

In this case, the visual field inspection unit 116 inputs the visual field boundary of the user recognized by the pupil recognition unit 112 and the position of the boundary obtained from the user input unit 140, or inputs both of them, The learned artificial intelligence model that outputs the boundary position of the user's visual field can be utilized.

In one embodiment, the artificial intelligence model includes learning data including a visual field boundary of the user recognized by the pupil recognition section 112, a position of a boundary obtained from the user input section 140, and a boundary position of the actual user's visual field Can be learned.

Also, the learning unit 150 may compare the determination result through the pupil recognition unit 112 with the input result through the user input unit 140, and perform reinforcement learning on the learned model based on the comparison result.

In one embodiment, the visual field inspector 116 may determine the position of the boundary of the user's field of view from the information obtained using the pupil recognition unit 112 using the artificial intelligence model. At this time, the learning unit 150 can perform reinforcement learning on the artificial intelligence model by using the input result obtained from the user input unit 140 as feedback.

The steps of a method or algorithm described in connection with the embodiments of the present invention may be embodied directly in hardware, in software modules executed in hardware, or in a combination of both. The software module may be a random access memory (RAM), a read only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a flash memory, a hard disk, a removable disk, a CD- May reside in any form of computer readable recording medium known in the art to which the invention pertains.

The components of the present invention may be embodied as a program (or application) and stored in a medium for execution in combination with a computer which is hardware. The components of the present invention may be implemented in software programming or software components, and similarly, embodiments may include various algorithms implemented in a combination of data structures, processes, routines, or other programming constructs, such as C, C ++ , Java (Java), assembler, and the like. Functional aspects may be implemented with algorithms running on one or more processors.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Field Inspector
110:
120:
130:

Claims (8)

A display unit for displaying a visual inspection image including at least one target;
A photographing unit photographing an eye of a user looking at the visual field inspection image; And
A control unit for analyzing the image photographed by the photographing unit to recognize a change in size of the user's pupil and determining whether the user's target is based on a change in the size of the pupil; Lt; / RTI >
Wherein,
A pupil recognition unit for recognizing a size change and movement of the pupil of the user;
A customized target creator for acquiring information about the user and generating a customized target for the user based on the obtained user information; And
A visual inspection unit for displaying the customized target on the display unit and determining whether the user is aware of at least one of a position and a brightness of the customized target and performing a visual field test on the user; Lt; / RTI >
The display unit is configured in the form of an HMD (Head Mount Display)
The pupil recognition unit may determine the direction of the user's gaze,
Wherein the visual field inspection unit determines a center point of the visual field of the user on the visual field inspection image based on the determined visual direction and determines a position at which to display the customizable index, Lt; / RTI >
Wherein the visual field inspection unit moves the center point of the visual field together as the visual line direction of the user moves and moves the position at which the visual indicator is displayed as the center point of the visual field moves,
The visual-
Wherein said plurality of directions have predetermined angular intervals, and said plurality of directions have predetermined angular intervals,
Sequentially moving the customizable target for each of the determined plurality of directions, confirming a position at which the customizable target deviates from the perceived range of the user for each of the plurality of directions,
Generating a view range map of the user based on the identified positions,
The visual-
And when the customizable target deviates from the recognition range of the user while moving the customizable target in a specific direction, it confirms the departing position, further moves the customizable target by a predetermined distance in the specific direction,
When the user recognizes the customized target again while moving the customized target further by the predetermined distance, it is determined that the identified leaving position is a position corresponding to the blind spot of the user,
If it is determined that the user does not recognize the customizable target while moving the customizable target further by the predetermined distance, it is determined that the identified leaving position is the boundary of the user's visual range with respect to the specific direction,
The visual-
Determining a boundary of the visual range in the view range map, the boundary being determined as an area having a predetermined thickness, displaying the customized target at a plurality of points included in the area,
A marker indicating the direction in which the customized target is displayed is displayed within the field of view of the user if the user is not perceived; determining whether the user is the customized target after the marker is displayed;
Determining a first boundary of the field of view in the field of view map based on whether the user is aware of the customized target displayed at the plurality of points,
Visibility checker with customizable target control. delete delete delete delete delete delete The method according to claim 1,
A user input for receiving an input as to whether the target is the target from the user; And
A learning unit for performing learning for determining whether the user is recognized;
Further comprising:
Wherein,
Determining a second boundary of the field of view in the field of view map based on the user's input as to whether the user is aware of the customized target displayed at the plurality of points,
Wherein the display unit displays the customized target in an area between the first boundary line and the second boundary line to determine whether or not the user is recognized, obtains an input on whether the user is recognized from the user input unit,
Comparing the determined recognition result with the input recognition result, performing reinforcement learning based on the comparison result,
The visual-
And determining a third boundary line of the visual range on the visual range map based on the comparison result.
Visibility checker with customizable target control.

Images