KR102299536B1 - A head mounted display and method for training to improve visual field disorder based on a 3-dimensional virtual reality using the same - Google Patents

Abstract

The present invention relates to a head mounted display (HMD) and a 3D virtual reality-based visual field disorder improvement training method using the HMD.
According to the present invention, there is provided a 3D virtual reality-based visual impairment improvement training method using an HMD, comprising: outputting a 3D virtual reality-based first object on a screen of the HMD - The first object is the first object on the screen output in the form of approaching from the 1st position to the 2nd position-; dividing or destroying the first object on the screen when the position of the first object reaches the second position; outputting the 3D virtual reality-based second and third objects on the screen when the first object is divided or destroyed; and receiving identification inputs for the second object and the third object from a response input device of the subject, wherein the first position and the second position are a center of a field of view of the subject. and the second and third objects are positioned in at least one of a center of visual field of the subject, a normal region of the subject's visual field, and an impaired region of the subject's visual field.

Description

A HEAD MOUNTED DISPLAY AND METHOD FOR TRAINING TO IMPROVE VISUAL FIELD DISORDER BASED ON A 3-DIMENSIONAL VIRTUAL REALITY USING THE SAME

The present invention relates to a head mounted display (HMD) and a 3D virtual reality-based visual field disorder improvement training method using the HMD.

In general, stroke is a single disease and ranks first for disability in Korea. Among the brain function impairments caused by the stroke, visual field impairment is a major disability that occurs at a high rate of 20-30% of all subjects. This visual field impairment is generally accepted as a permanent defect, and the reality is that there is no attempt to rehabilitate the visual field disorder itself, and subjects with brain damage to the visual cortex following a stroke characteristically develop hemianopia on the other side of the lesion. see. For example, a subject who has had a stroke in the left visual cortex has a hemilateral visual field disorder on the right side. In this case, the subject cannot recognize objects or movements in the right visual field when looking straight ahead with both eyes open.

However, some subjects with visual field impairment due to a stroke occurring in the visual cortex may notice certain movements or shapes in an invisible field of view. Even if they answer that they do not see it, they match the letters more than the chance level with probability, and even show an appropriate response to a visual stimulus. These subjects do not perceive the stimulus visually, but the brain notices movement or shape. This phenomenon, discovered by Lawrence Weiskrantz in the 1970s, is called blindsight, which refers to the phenomenon of noticing even though it cannot be seen. The existence of the above-mentioned blindness phenomenon suggests that visual information received through the retina can be processed through other places than the visual cortex.

Accordingly, there is a need for a visual perception training method and apparatus for improving a visual perception function by performing visual perception learning (training) through repetitive provision of visual perception stimulation.

Korean Patent Publication No. 10-0876085, 2008.12.29.

In the existing method provided for training for visual field disorders, the subject has to position the subject according to the distance and height from the subject's eye position to the monitor, thereby causing inconvenience.

In addition, since the distance from the eye position of the subject to the monitor is determined, only stimulation at a specific depth can be given, so there is a problem that stimulation according to various depths cannot be given.

Accordingly, an object of the present invention is to provide a training method, a program, and a computing device for improving visual field disorders, which can induce a subject's concentration and provide stimulation according to various depths.

In addition, the problem to be solved by the present invention is to continuously provide a stimulus to the peripheral field of view while the gaze direction is fixed to the central field of view to an object moving from a far distance to a near distance from the user.

In addition, the problem to be solved by the present invention is to implement and provide training for visual impairment as a game.

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

The method for improving the visual field disorder based on a 3D virtual reality using an HMD according to the present invention for solving the above-described problem includes the steps of outputting a 3D virtual reality based first object on a screen of the HMD - the first the object is outputted in a form approaching from the first position to the second position on the screen; dividing or destroying the first object on the screen when the position of the first object reaches the second position; outputting the 3D virtual reality-based second and third objects on the screen when the first object is divided or destroyed; and receiving identification inputs for the second object and the third object from a response input device of the subject, wherein the first position and the second position are a center of a field of view of the subject. and the second and third objects are positioned in at least one of a center of visual field of the subject, a normal region of the subject's visual field, and an impaired region of the subject's visual field.

In this case, the second object and the third object are output as a first combination, and in the first combination, any one of the second object and the third object is located in a normal region of the subject's field of view, and the other One is characterized in that it is located in the impaired area of the subject's field of view.

In addition, the second object and the third object are output at a predetermined ratio of the first combination and the second combination, wherein the second combination is that both the second object and the third object have a field of view of the subject It is characterized in that it is located in the normal region of

In addition, the second object and the third object are output in a third combination, wherein in the third combination, any one of the second object and the third object is located at the center of the field of view of the subject, and the other is It is characterized in that it is located in the impaired area of the subject's field of view.

In addition, when the HMD divides the first object on the screen in the step of dividing or destroying the first object, the first object is divided into a first divided object and a second divided object at the second position. is divided, and while the first object is divided, the depths of the first division object and the second division object are adjusted to be the same as or different from those of the first object, and the outputting of the second object and the third object includes: After the first object is divided into the first division object and the second division object, the HMD replaces the first division object and the second division object in a predetermined area to obtain the virtual second object and the second division object. It is characterized in that the third object is output.

In addition, when the HMD destroys the first object on the screen in the step of dividing or destroying the first object, the first object disappears in a scattered form at the second position or disappears from the second position It is characterized in that the provided depth of the first object in the form of spreading or disappearing in the form of spreading in the second position is adjusted while being dispersed or spreading in the second position.

In addition, the first object has different colors output at the first position and the second position, and the second object and the third object are randomly selected to be the same or different from each other in a horizontal pattern or a vertical pattern. output is characterized.

In addition, the second object and the third object are output in the form of a rotating figure, and the rotation directions of the second object and the third object are randomly output to be the same or different from each other.

In addition, the second and third objects are randomly output so that the depths output on the screen are the same or different from each other, and the depths at which the second and third objects are output are determined from the eye position of the subject. It is characterized in that it represents the distance between the second object or the third object.

In addition, the HMD for providing a three-dimensional virtual reality-based visual impairment improvement training method according to the present invention comprises: a communication unit; display unit; and a control unit controlling the communication unit and the display unit, wherein the control unit outputs a 3D virtual reality-based first object on the screen of the display unit, and the first object is located at a first position on the screen. output in the form of approaching the second position - When the position of the first object reaches the second position, the first object is divided or destroyed on the screen, and the first object is divided or destroyed , output the 3D virtual reality-based second object and the third object on the screen, and receive an identification input for the second object and the third object from a response input device of the subject through the communication unit wherein the first position and the second position are positions in a central field of view of the subject, and the second subject and the third subject are at the center of the subject's field of view, the and located in at least one of a normal area of the subject's field of view and an impaired area of the subject's field of view.

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

According to the present invention, the stimulus is provided in the form of flying, thereby inducing the subject's concentration in training for visual field disorder.

In addition, according to the present invention, by providing various types of stimulation, different stimulations are provided according to disorders of each brain region, thereby effectively training for treatment.

In addition, according to the present invention, by providing the stimulus by adjusting the form of stimulus, the speed, angle, distance, etc. of stimulus provision, difficulty control and treatment training according to the condition of the subject are possible.

In addition, according to the present invention, a method of providing stimulation in three dimensions may be implemented as a game to arouse the user's interest in training for visual field disorders.

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

1 is a view for explaining a training method for improving visual field disorders according to an embodiment of the present invention.
FIG. 2 is a view illustrating a screen viewed from above in which a first object is provided as a form approaching from a first position to a second position.
3 is a view showing a visual field disorder training screen from the side.
4 and 5 are views illustrating a visual field disorder training screen from the front.
6 and 7 are diagrams for explaining a continuous state in which the first object 10, the second object 20, and the third object 30 move on the screen.
8 and 9 are views illustrating movement of the first object 10 , the second object 20 , and the third object 30 on a screen that is actually implemented.
FIG. 10 is a diagram for explaining that the first object is provided by being moved to change the central viewing direction of the subject.
11 is a view for explaining a type of stimulus that varies according to an area in which a visual field disturbance occurs.
FIG. 12 is a diagram for explaining adjustment of provision times of a first object, a second object, and a third object as a difficulty adjustment of training for visual field disorder.
13 is a diagram for explaining angle adjustment of a viewing range provided by a second object and a third object;

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully understand the scope of the present invention to those skilled in the art, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless specifically defined explicitly.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe the correlation between a component and other components. A spatially relative term should be understood as a term that includes different directions of components during use or operation in addition to the directions shown in the drawings. For example, when a component shown in the drawing is turned over, a component described as “beneath” or “beneath” of another component may be placed “above” of the other component. can Accordingly, the exemplary term “below” may include both directions below and above. Components may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

The present invention is to treat visual field disorders by inducing brain plasticity, and by the therapeutic effect of visual field disorders induced by brain plasticity (for example, visual field disorders caused by stroke, etc.), the present invention can be applied as a digital therapeutic agent. can

Digital therapeutics prescribe surgery, procedures, or medicines to treat patients. Digital therapeutics means treating patients using digital healthcare together with medicines. Digital therapeutics are applications, games, VR, chatbots, and artificial intelligence without hardware. By using software such as software, software alone may be used as a therapeutic agent, or software embedded in a hardware medical device may serve as a therapeutic agent.

As used herein, the term 'computer' includes various devices capable of performing arithmetic processing. For example, computers include desktop PCs and notebooks (Note Books) as well as smart phones, tablet PCs, cellular phones, PCS phones (Personal Communication Service phones), synchronous/asynchronous A mobile terminal of International Mobile Telecommunication-2000 (IMT-2000), a Palm Personal Computer (PC), a Personal Digital Assistant (PDA), and the like may also be applicable. In addition, the computer may include a head-mounted display function, including the head-mounted display device itself is a computing device. A computer is a computing device that is wired or wirelessly connected to a head-mounted display device, and the computing device provides an image to the head-mounted display. The computer is a head-mounted display computing device itself, including generating and even providing an image. Also, the computer may correspond to a server computer that receives information from a client. Hereinafter, in the present specification, a computer may be expressed as a terminal or a client.

In the present specification, a 'head-mounted display device' refers to a device that provides a visual field disorder training image to a user's eyes. The present invention is a training method for improving visual field disorders performed in two-dimensional and three-dimensional (virtual reality, VR), and uses a 'head-mounted display device' when performed in three dimensions. The 'head-mounted display device' may be a device connected to and used with a computer (eg, a PC or a smart phone) or a device including a computing function.

In the present specification, the 'screen' provided to the user includes a separate display screen when training in two dimensions is performed, and includes a screen in a head-mounted display device worn by the user when training in three dimensions is performed.

In the present specification, the 'central viewing area' refers to a central area within a screen provided to a user.

In the present specification, the term 'peripheral viewing area' refers to the remaining area in the screen except for the central viewing area.

In the present specification, the 'first object' serves as a fixation point for training for visual field disorders, and is a stimulus for fixing the center of the subject's visual field. The first object may have a two-dimensional shape or a three-dimensional shape. In addition, the first object may be divided or destroyed before the appearance of the second object and the third object, which will be described later, and may disappear after the appearance of the second object and the third object. It can be provided and destroyed at the same time. A form in which the first object is divided or destroyed will be described later.

In the present specification, 'first division object' and 'second division object' are objects provided by dividing the first object, and may be the same size and/or the same shape as the first object, and different sizes from the first object and / or it may be in a different form. Also, the 'first division object' and the 'second division object' may be changed or replaced with the 'second object' and the 'third object' at a certain point in time.

In the present specification, the 'second object' and the 'third object' refer to a stimulus provided to at least one of a central visual field, a visual field disturbance region, and a normal region. A specific provision area will be described in detail in the embodiments to be described later.

In the present specification, a 'stimulus recognition position' is an initial position where the first object is disposed, and is a position where the first object is disposed so that the user recognizes the first object as a stimulus in the central field of view.

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

1 is a view for explaining a training method for improving visual field disorders according to an embodiment of the present invention.

Referring to FIG. 1 , in the method of training for improving visual field disorder according to an embodiment of the present invention, the computer providing a virtual first object on a screen (S100), the position of the first object 10 is the second After reaching the location, the computer divides and provides the first object 10 on the screen or destroys the first object 10 ( S200 ), after the first object 10 is divided and provided or destroyed, the computer provides a virtual second object and a third virtual object on the screen (S300), and the computer receives an identification input for the second object and the third object from a user's response input device (S400). .

In the step ( S100 ) of the computer providing the first virtual object on the screen, the first object 10 is provided in the form of approaching from the first position to the second position on the screen.

As described above, the screen corresponds to a separate display screen separated from the user in the case of performing training in two dimensions, and corresponds to the screen of the head mounted display device worn by the user in the case of performing training in three dimensions. .

The present invention may include both a training method for visual field impairment in two dimensions and a training method for visual impairment in three dimensions.

The first position is a position at which a change of at least one of the position, size, and shape of the first object 10 starts, and the second position is a position at which the change of at least one of the position, size, and shape of the first object 10 ends. is the position to be

As an embodiment, when the first object 10 moves in the virtual space, the position of the first object 10 is changed from the first position to the second position.

As another embodiment, when the size of the first object 10 is changed at one location, the first location and the second location may be the same. In such a case, the user who gazes at the screen may see the first object 10 due to the size change of the first object 10 on the screen (eg, the first object 10 from a smaller size to a larger size is provided at a fixed position). It may be recognized that the object 10 is moving.

In embodiments in which the first object 10 is moved from a first position to a second position, which will be described later, the first object 10 is changed in size without changing the position, so that the user recognizes as the movement of the first object 10 . may also be included. For example, in the form of flying from a first position in a distant position to a second position in a close position, the first position and the second position are the same, and the size of the provided first object 10 is gradually increased from a small one. may include those provided as large ones.

Further, the first position and the second position are positions in the subject's central field of view.

The moving of the first object 10 as approaching from the first position to the second position on the screen is a form of flying from the first position that is farther to the second position that is close to the second position in the space within the screen. stimulus is provided.

In addition, the stimulus is provided to the first object 10 in the form of flying in three dimensions.

The first object 10 is provided to the central visual field of the subject, and the angle, distance, and speed at which the first object 10 is provided may be different depending on the individual subject and the state of the disease. and the speed is adjustable.

By providing the first object 10 to the subject in a flying form, there is an effect of fixing the subject's field of view and inducing concentration.

In the case of performing training in three dimensions, in the step (S100) of the computer providing the virtual first object 10 on the screen (S100), the stimulus recognition position of the first object 10 is moved, and the moved stimulus recognition position When recognition of the first object 10 is detected by the head mounted display device, the first object 10 is provided to move from the first position to the second position on the screen in an approaching manner.

A detailed description of the movement of the first object 10 when the recognition of the first object 10 is sensed due to the movement of the stimulus recognition position will be described later with reference to FIG. 6 .

In the computer providing the first object on the screen ( S100 ), the first object 10 may be provided so that colors at the first location and the second location are different.

By changing the color of the approaching stimulus, that is, when the first object 10 approaches, the effect of fixing the central vision may be improved.

When the position of the first object 10 reaches the second position, the computer divides and provides the first object 10 on the screen or in the step S200 of annihilating the first object 10, the first object 10 ) divided and provided or destroyed is implemented as various embodiments.

In an embodiment, the first object 10 disappears in a scattered form at the second position, but disappearing in a scattered form means that the first object 10 is separated into a plurality of pieces at the second position and separated Each of the fragments that have been formed are scattered up, down, left and right and disappear as they move away from each other.

In another embodiment, the first object 10 disappears in a form that spreads at the second position, but disappears in a form that spreads means that the first object 10 moves up and down in the form of the first object 10 at the second position As it gradually spreads to the left and right and becomes blurred at the same time, the degree of blur increases along with the degree of spread of the shape of the first object 10, and disappears as it gradually fades.

In another embodiment, the first object 10 is provided by being divided into the first division object 60 and the second division object 70 in the diagonal direction at the second position.

As another embodiment, while the first object 10 is scattered or spread at the second position, the provided depth of the first object 10 in a scattered or spread form may be adjusted.

In another embodiment, the first object 10 is provided by being divided into a first division object 60 and a second division object 70 in a diagonal direction at a second position, and the first division object divided while being divided Provided depths of ( 60 ) and the second division object ( 70 ) may be adjusted.

After the first object 10 is divided and provided or destroyed, in the step (S300) of the computer providing the second object 20 and the third object 30 on the screen, the second object 20 and the second object 10 3 The subject 30 is provided to be positioned in at least one of the subject's center of visual field, a normal region of the subject's visual field, and an impaired region of the subject's visual field.

In one embodiment, the second object 20 is provided so as to be located in the subject's visual field with an impaired area, and the third object 30 is located at the center of the subject's field of view, that is, the central area, and in another embodiment, the second object is an impaired area of the subject's field of view, and the third object 30 is provided to be located in a normal area of the subject's field of view and diagonally to the second object 20 with respect to the central field of view.

In the above-described embodiment, when the first object 10 is divided into the first division object 60 and the second division object 70 at the second position and provided, the second object 20 and the third object In the step of providing ( 30 ) ( S300 ), after the first object 10 is divided and provided as the first division object 60 and the second division object 70 , the computer performs the first division object in a predetermined area. (60) and the second division object 70 are replaced to provide a second virtual object 20 and a third object 30.

In this case, in a form in which the second object 20 and the third object 30 are provided by replacing the first division object 60 and the second division object 70 , in an embodiment, the first division object ( 60 ) and the second division object 70 are rotated and changed into the second object 20 and the third object 30 .

In another embodiment, the first division object 60 and the second division object 70 disappear and are changed to the second object 20 and the third object 30 at the same time.

In another embodiment, the first division object 60 and the second division object 70 are blurred and changed to the second object 20 and the third object 30 .

In another embodiment, the first division object 60 and the second division object 70 are divided and changed into the second object 20 and the third object 30 .

In another embodiment, the first division object 60 and the second division object 70 become smaller and change into the second object 20 and the third object 30 .

The predetermined area is an area in which the second object 20 and the third object 30 are to be disposed for training for visual field disorders or in which the second object 20 and the third object 30 are to be disposed for training for visual field disorder. is the surrounding area.

As an embodiment, when the first division object 60 and the second division object 70 arrive on an area where the second object 20 and the third object 30 are to be arranged for training for visual field disorders, the second A second object 20 and a third object 30 may be provided.

In another embodiment, when the first division object 60 and the second division object 70 arrive at a region surrounding the area where the second object 20 and the third object 30 are to be arranged for training for visual field disorders, , the second object 20 and the third object 30 may be provided in areas where the second object 20 and the third object 30 are to be disposed for training for visual field disorders.

The depth at which the second object 20 and the third object 30 are provided can be adjusted. As the provided depths of the second object 20 and the third object 30 are adjusted, the depth on the screen to which the stimulus for training for visual field disorder is provided may be adjusted. The provided depth is an embodiment, and the second object 20 and the third object 30 may be provided with different depths in a virtual space, and in another embodiment, the depth may be different by making the sizes different. may provide.

Accordingly, by adjusting the depth on the screen where the second object 20 and the third object 30, which are stimulation for training, are provided according to each subject and disability state, training for each state is more effectively performed. can proceed.

Also, the second object 20 and the third object 30 may be provided in various combinations and ratios.

The second object 20 and the third object 30 are provided as a first combination, in one embodiment, wherein one of the second object 20 and the third object 30 is the subject's field of view. is located in the normal area of , and the other is located in the impaired area of the subject's field of view. In this case, the second object 20 and the third object 30 are provided in a diagonal direction.

In another embodiment, the second object 20 and the third object 30 are provided as a second combination, wherein both the second object 20 and the third object 30 are normal regions of the subject's field of view. will be located in Even in this case, the second object 20 and the third object 30 are provided in a diagonal direction. In another embodiment, the second object 20 and the third object 30 are provided as a predetermined ratio of the first combination and the second combination, and the predetermined ratio is a predetermined ratio.

In another embodiment, the ratio of the first combination and the second combination of the second object 20 and the third object 30 is 4:1.

When the first combination, which is a stimulus combination including the visual field impaired region, and the second combination, which is a stimulus combination provided to the normal region, are provided together in a predetermined ratio, the learning effect may be further increased.

In addition, when the provision ratio of the first combination and the second combination is 4:1, the most effective learning result appears.

In another embodiment, the second object 20 and the third object 30 are provided as a third combination, and the third combination is one of the second object 20 and the third object 30 of the subject. one is located in the central field of view, and the other is located in the impaired area of the subject's field of view.

When one of the second object 20 and the third object 30 is positioned in the subject's central visual field, the user's gaze is not moved and is continuously fixed to the central visual field and is located in the impaired area of the subject's visual field It may be more effective when visual field disorder training is performed on the basis of another subject.

The present invention is characterized in that the user's gaze can be viewed without moving the gaze while the user's gaze is fixed at the center.

Among the above-described embodiments, both of providing the object in a diagonal direction and continuously providing one of the objects to the central field of view and providing the other to the disabled area fix the user's gaze to the center and fix the user's gaze to the disabled area without moving the gaze to be able to see

In the step of providing the second object 20 and the third object 30 ( S300 ), the second object 20 and the third object 30 may be provided as various types of stimulation.

In an embodiment, the second object 20 and the third object 30 are randomly provided so as to be the same or different from each other in a horizontal pattern or a vertical pattern.

In this case, in the step (S400) of the computer receiving the identification input for the second object and the third object from the user's response input device, the identification input determines whether the second object 20 and the third object 30 have the same pattern. , whether it is a different pattern, or whether the object provided in the disordered area is a horizontal pattern or a vertical pattern.

In another embodiment, the second object 20 and the third object 30 are rotating figures, and the rotation directions of the second object 20 and the third object 30 are randomly provided to be the same or different from each other. do.

In this case, when the computer receives the identification input for the second object and the third object from the user's response input device ( S400 ), the identification input is applied to the second object 20 and the third object 30 in the same direction. and input of the direction of rotation, such as whether it rotates, rotates in a different direction, or whether the object provided in the disordered area rotates right, left, down, up, etc.

In another embodiment, the depths at which the second object 20 and the third object 30 are provided are randomly provided on the screen so that they are the same or different from each other, and the second object 20 and the third object 30 are The provided depth indicates the distance of the second object 20 or the third object 30 from the screen recognized by the subject.

In this case, in the step (S400) of the computer receiving the identification input for the second object and the third object from the user's response input device, the identification input is applied to the second object 20 and the third object 30 at the same depth. It includes an input whether provided, provided at a different depth, or whether the subject provided to the disabled area is provided more or less deeply than the object provided to the non-disabled area.

The types of stimulation of the second object 20 and the third object 30 vary depending on a region in the brain where a visual field disturbance occurs, and thus will be described in detail with reference to FIG. 7 .

After the first object 10 is divided and provided or destroyed, in the step (S300) of the computer providing the second object 20 and the third object 30 on the screen, the first object 10 is divided The provision of the second object 20 and the third object 30 after being provided or extinguished is, in an embodiment, the first object 10 is divided into the first division object 60 and the second division object 70 . ), when the first division object 60 and the second division object 70 reach a predetermined area, the shape of the second object 20 and the third object 30 is changed to be displayed. to provide.

The division of the first object 10 into the first division object 60 and the second division object 70 causes division within a predetermined time.

The predetermined time is set to be as short as possible. When the predetermined time is short, the first object 10 is divided into the first division object 60 and the second division object 70 in the central field of view of the subject, and then the second object 20 and the third object When seeing the change in the shape of ( 30 ), the second object 20 and the third object 30 may be viewed without averting the eyes and in a state in which the central field of view is fixed. The depth of the region in which the third object 30 is provided may be the same as the depth of the region in which the second object 20 is provided, or may be provided differently.

Since the visual field disorder training of the present invention determines whether the types of the provided second object 20 and the third object 30 match or do not match, or the shape of the object in the field of vision impaired area, etc. Providing the second object 20 and the third object 30 before reaching the disabled area may not have a significant effect on training.

Accordingly, the second object 20 and the third object 30 are formed in a predetermined area in which the flying first object 10 is divided into the first division object 60 and the second division object 70 . Upon arrival, the divided first division object 60 and the second division object 70 are placed on the area or surrounding area where the second object 20 and the third object 30 are to be provided for training for visual field disorder. It is provided so as to be changed in the form of the second object 20 and the third object 30 on the image.

As described above, the predetermined region is a point at which the first division object 60 and the second division object 70 change into the shape of the second object 20 or the third object 30, according to an embodiment. can be

According to another embodiment, the predetermined area is an area reached by the first division object 60 and the second division object 70 as flying, provided by the second object 20 or the third object 30 . It may be a point in a region that is deeper than the region where it is used.

For a detailed description of how the first object 10 is divided and the second object 20 and the third object 30 are generated, refer to the descriptions of FIGS. 4 and 5 to be described later.

In the step of providing the second object 20 and the third object 30 ( S300 ), the second object 20 and the third object 30 may be provided differently according to difficulty levels.

In an embodiment, the contrast of the second object 20 and the third object 30 may be adjusted to provide the stimulus, and the subject is the second object 20 and the third object 30 . If , the contrast is lowered to increase the difficulty, and when the subject fails to match the form of the stimulus, which is the second object 20 and the third object 30, and incorrect answers are consecutively displayed, the difficulty is lowered by increasing the contrast.

In another embodiment, the size of the second object 20 and the third object 30 may be adjusted to provide the stimulation, and the subject is the second object 20 and the third object 30 . When matching , the size of the second object 20 and the third object 30 is reduced to increase the difficulty, and the subject cannot match the stimulus form that is the second object 20 and the third object 30, and an incorrect answer is displayed. In the case of continuously appearing, the size of the second object 20 and the third object 30 is increased to lower the difficulty level to provide the same.

In another embodiment, the stimulus may be provided by adjusting the exposure duration of the second object 20 and the third object 30 , and the subject is the second object 20 and the third object 30 . When the shape of , the exposure time of the second object 20 and the third object 30 is reduced to increase the difficulty, and the subject cannot match the shape of the stimulus, which is the second object 20 and the third object 30 . , when incorrect answers are consecutively provided, the difficulty is lowered by increasing the exposure time of the second object 20 and the third object 30 .

In another embodiment, the location of the second object 20 and the third object 30 may be adjusted and provided.

The step of providing the second object and the third object ( S300 ) is to provide the second object 20 and the third object 30 within a field of view of the subject, and the second object 20 and the third object are provided. The angle between the position where the object 30 is provided and the central field of view can be adjusted.

In one embodiment, the angle adjustment may be adjusted according to the subject's visual field disturbance region, and in another embodiment, it may be adjusted to progress in stages according to the treatment status.

In the computer receiving the identification input for the second object and the third object from the user's response input device ( S400 ), the second object 20 and the third object 30 are provided according to the above-described form of providing a second object. An input of whether the second object 20 and the third object 30 are the same, different, or in what shape is received.

After the first object 10 is divided and provided or destroyed, providing the second object and the third object for a predetermined time in the step (S300) of the computer providing the virtual second object and the third object on the screen Even before, the computer may receive identification inputs for the second object and the third object from the user's response input device ( S400 ).

That is, the computer may provide the second object and the third object on the screen and simultaneously receive an identification input for the second object and the third object from the user's response input device.

The input method is not limited to the embodiment, such as inputting whether it is the same or different depending on which button is pressed in one embodiment, and whether the same or different depending on how many times the button is pressed in another embodiment, etc. All forms of inputting a response to a problem using the response input device of

According to the present invention, the second object 20 and the third object 30 are in the central and/or peripheral fields in a state in which the gaze direction of the subject is fixed in the central field of view using the first object 10 moving in an approaching form. ) is continuously provided.

By providing the second object 20 and the third object 30 in various forms, it can be implemented as a game and provided to the subjects, and has the effect of stimulating the subjects' interest in training for visual field disorders. .

FIG. 2 is a view illustrating a screen viewed from above in which a first object is provided as a form approaching from a first position to a second position.

3 is a view showing a visual field disorder training screen from the side.

Referring to FIGS. 2 and 3 , it may be confirmed that the first object 10 is drawn from the first position to the second position on the screen within the subject's field of view.

As described above, the first position is a position where the change of the position, size, or shape of the first object 10 starts, and the second position is the position where the change of the position, size, or shape of the first object 10 ends. is the location

As an embodiment, when the first object 10 moves in the virtual space, the first position is located at a greater distance than the second position when the distance from the subject and the distance on the screen are compared.

As another embodiment, when the size of the first object 10 is changed at one location, the first location and the second location may be the same.

In addition, the first position and the second position are positions on the subject's central field of view, and since the first object 10 is provided in a form approaching from the first position to the second position, concentration of the subject may be caused.

4 and 5 are views illustrating a visual field disorder training screen from the front.

4A and 4B illustrate disposition of the second object and the third object in different diagonal directions with respect to the central field of view.

In addition, in FIGS. 4A and 4B , only the obstructive region 40 and the normal region 50 are shown diagonally, but as described above, only the normal region 50 is diagonally arranged. It may be provided as a form. In this case, the second object 20 is also disposed in the normal region 50 .

5 (a) and 5 (b) illustrate the arrangement of the second object and the third object in the central field of view and the impaired area.

Referring to FIGS. 4 (a), (b) and 5 (a), (b) , the visual field disorder training screen is a first object 10 , a second object 20 , and a third object 30 . , including a visual field disturbance region 40 and a normal region 50 .

Although the first object 10 is illustrated in FIGS. 4A and 4B and FIGS. 5A and 5B , the first object 10 is the second object 20 as described above. ) and the third object 30 may be destroyed together while generating, in some cases, the first object 10 may be annihilated and the second object 20 and the third object 30 may be provided.

Also, after the first object 10 is divided into the first division object 60 and the second division object 70 , the first division object 60 and the second division object 70 disappear and the second object ( 20 ) and the third object 30 may be generated, or the first division object 60 and the second division object 70 are changed to the second object 20 and the third object 30 . It may appear in the form

Referring to FIG. 4 , the second object 20 is disposed in the visual field disturbance region 40 , and the third object 30 is diagonal to the second object 20 on the normal region 50 with respect to the central field of view. direction, but one of the second and third objects 20 and 30 may be disposed on the visual field impaired region 40 , and the other may be disposed on the normal region 50 .

Referring to FIG. 5 , the second object 20 is disposed in the visual field disturbance region 40 , and the third object 3 is disposed in the central field of view, but among the second object 20 and the third object 30 , One may be disposed in the visual field obstruction area 40, and the other may be disposed in the central field of view.

Whether the provided stimulus form of the subject provided on the normal region 50 or central visual field and the subject provided on the impaired region 40 is the same or different, or what form of the stimulus provided as the subject provided on the impaired region 40 is By judging, visual field impairment can be trained.

6 and 7 are diagrams for explaining a continuous state in which the first object 10, the second object 20, and the third object 30 move on the screen.

6 (a) to (c) are views showing the flow of time of FIGS. 6 (b) and 6 (c) starting with FIG. 6 (a), and FIG. 7 (a) to (c) are diagrams showing the chronological order of FIGS. 7(b) and 7(c), starting with FIG. 7(a).

6 and 7 include visual field disorder training performed on a two-dimensional screen and a three-dimensional screen using VR.

In the case where visual field disorder training is performed on a three-dimensional screen using VR, it is provided in the form of an object flying from a distance when viewed from the user's point of view.

When visual field disorder training is performed on a two-dimensional screen, since the object is provided from a small size to a larger size, it is provided to be visually viewed in a flying form.

Embodiments in the present specification provide a form in which an object is flying from a distance by performing visual field disorder training on a three-dimensional screen using VR, and visual field disorder training is performed on a two-dimensional screen so that the object becomes increasingly smaller in a small size. Including those that are provided in a large size so as to be visually viewed in a flying form.

Referring to FIGS. 6A and 7A , first, the first object 10 moves from a first position to a second position on the screen as shown in FIG. 3 . As described above, the first position and the second position are positions on the subject's central field of view, and the first object 10 provides a three-dimensional movement in VR as an approaching form from the first position to the second position. May cause the subject's concentration.

After the first object 10 reaches the second position as in FIGS. 6A and 7A , referring to FIG. 6B , the first object 10 moves to the second position The first division object 60 and the second division object 70 are divided and moved in a diagonal direction from the position, and referring to FIG. 7C , the first object 10 is divided into the first division object 60 at the second position. The object 60 is divided into a central field of view, and the second division object 70 is divided into an impaired area and moves.

6(b) and 7(b), only the first object 10 is divided and moved into the first division object 60 and the second division object 70 at the second position. However, the first object 10 may dissipate in a scattered form at the second position, may dissipate in a diffuse form at the second position, and disperse or spread at the second position. The provided depth of the first object 10 can be adjusted, and the first division object 60 and the second division object 70 are divided and moved at the second position, but the divided first division object 60 . And the provided depth of the second division object 70 may be adjusted.

As an embodiment, the first object 10 may disappear in a scattered or spread form at the same depth as the second position.

That is, the first object 10 begins to divide or scatter at the second position and the same depth when viewed from the subject's perspective, and the visual field disturbance region 40 and the normal region 50 or the visual field disturbance without adjusting the depth. The second object 20 and the third object 30 are disposed in the region 40 and the central field of view.

In another embodiment, in the process of dispersing or distributing the first object 10, the depth of the first object 10 seen in the two-dimensional or three-dimensional image that is separated and moved may be adjusted to be shallower than the depth of the second position. have.

In another embodiment, in the process of dividing and disposing the first object 10 into the first division object 60 and the second division object 70 , the first division viewed in 2D or 3D is separated and moved. The depth of the object 60 and the second division object 70 may be the same as the depth of the second location.

In another embodiment, in the process of dividing and disposing the first object 10 into the first division object 60 and the second division object 70 , the first division viewed in 2D or 3D is separated and moved. Depths of the object 60 and the second division object 70 may be adjusted to be shallower than the depth of the second position.

That is, the first object 10 is divided, scattered, or spread at the second position and the depth of the second position, and the first object 10 or the first divided object 60 and the second division are separated while moving. The depth at which the object is provided becomes shallow.

The form in which the first object 10 is scattered or spread is applied in the same manner as described above in the description of FIG. 1 .

Therefore, when viewed from the subject's perspective, the separated and moving first object 10 gradually moves forward and enters the visual field disturbance region 40 and the normal region 50, or the visual field disturbance region 40 and the central field of view. The object 20 and the third object 30 are arranged, or the divided first divided object 60 and the second divided object 70 gradually come forward, and then the visual field impaired area 40 and the normal area 50, Alternatively, the first divided object 60 and the second divided object 70 are changed to the second object 20 and the third object 30 in the visual field disturbance region 40 and the central field of view.

In FIGS. 6 (b) and 7 (b), the depth of the second position where the first object 10 is disposed before being divided is determined by the first division object 60 and the second division object 70 being divided. It is deeper than the depth of the position seen in the process.

Referring to FIG. 6C , as in FIG. 6B , the first object 10 is diagonally divided into the first division object 60 and the second division object 70 at the second position. After being moved, disappearing in a scattered form, or disappearing in a diffuse form, the second object 20 moves to the visual field impaired region 40 , and the third object 30 moves to the normal region 50 based on the central visual field. to be disposed in a diagonal direction to the second object 20 .

Also, referring to FIG. 7C , as shown in FIG. 7B , the first object 10 is divided into a first division object 60 and a second division object 70 at a second position. After moving, disappearing in a scattered form, or disappearing in a spreading form, the second object 20 is disposed in the visual field disturbance region 40 and the third object 30 is disposed in the central field of view.

In an embodiment, the depth at which the second object 20 and the third object 30 are provided is the same as the depth of the second location.

In another embodiment, the depth at which the second object 20 and the third object 30 are provided is shallower than the depth of the second location.

6 (a) to (c) and 7 (a) to (c), the first object 10 is divided into a first division object 60 and a second division object 70 The process and effect of being divided and changing the first division object 60 and the second division object 70 into the second object 20 and the third object 30 will be described as follows.

As described above, the first object 10 approaches from the first position to the second position, and the first object 10 moves from the second position to the first division object 60 and the second division object 70 . ), the divided first division object 60 and the second division object 70 are divided in the direction in which the second object 20 and the third object 30 are arranged from the divided second position to a predetermined area. After being provided in an approaching form, the virtual second object 20 and the third object 30 are provided by replacing the first division object 60 and the second division object 70 in a predetermined area.

In this case, the predetermined area is an area in which the second and third objects 20 and 30 are to be arranged for training for visual field disorders or the second and third objects 20 and 30 are trained for visual field disorders. This is the area around it that should be placed.

As an embodiment, when the first division object 60 and the second division object 70 arrive on an area where the second object 20 and the third object 30 are to be arranged for training for visual field disorders, the second A second object 20 and a third object 30 may be provided.

In another embodiment, when the first division object 60 and the second division object 70 arrive at a region surrounding the area where the second object 20 and the third object 30 are to be arranged for training for visual field disorders, , the second object 20 and the third object 30 may be provided in areas where the second object 20 and the third object 30 are to be disposed for training for visual field disorders.

In addition, when the first object 10 is divided into the first division object 60 and the second division object 70 , the division is performed within a predetermined time period.

In this case, the predetermined time is set to be as short as possible. When the predetermined time is short, the first object 10 is divided into the first division object 60 and the second division object 70 in the central field of view of the subject, and then the second object 20 and the third object When seeing the change in the shape of ( 30 ), the second object 20 and the third object 30 may be viewed without averting the eyes and in a state in which the central field of view is fixed.

Among the depths of the regions in which the second object 20 and the third object 30 are provided, the depth of the region in which the second object 20 is provided is determined that the region in which the second object 20 is provided is in the field of view impaired region. As a corresponding area, it means a depth at which the second object 20 is provided in the field of view impaired area.

The depth of the region in which the third object 30 is provided may be the same as the depth of the region in which the second object 20 is provided, or may be provided differently.

Since the visual field disorder training of the present invention is to determine whether the types of the provided second object 20 and the third object 30 match or not match, the second object 20 and the second object 20 and Providing the third object 30 does not have a great effect in training.

Accordingly, the second object 20 and the third object 30 are formed in a predetermined area in which the flying first object 10 is divided into the first division object 60 and the second division object 70 . Upon arrival, the divided first division object 60 and the second division object 70 are placed on the area or surrounding area where the second object 20 and the third object 30 are to be provided for training for visual field disorder. It is provided so as to be changed in the form of the second object 20 and the third object 30 on the image.

8 and 9 are diagrams illustrating movement of the first object 10 , the second object 20 , and the third object 30 on a screen that is actually implemented.

It is shown to the user in the order from (a) to (f) of FIG. 8 and from (a) to (f) of FIG. 9, and may correspond to all screens implemented in 2D or 3D.

FIG. 10 is a diagram for explaining that the first object is provided by being moved to change the central viewing direction of the subject.

10 is a diagram illustrating a state in which a subject wears a head-mounted display device to train for visual field disorders in a three-dimensional space.

Unlike training for visual impairment in 2D, 360° directions can be used in 3D space. Accordingly, the point at which the first object 10 starts to move may be changed in the 3D space.

Referring to FIG. 10 , it can be seen that the stimulus recognition position of the first object 10 is moved from left to right.

When it is confirmed that the first object 10 in the stimulus recognition position moved from the head-mounted display device is observed from the stimulus recognition position on the right, which is the moved stimulus recognition position, the computer detects the first object 10 in the virtual space. Offer to move in an approaching fashion from a first position to a second position, and begin providing a training stimulus.

The method of confirming the gaze of the first object 10 at the stimulus recognition position moved from the head-mounted display device corresponds to the stimulus recognition position moved in the virtual space in the direction in which the head-mounted display device gazes. It is to determine whether there is a first object 10 to do.

In addition, as another embodiment, when the head-mounted display device includes an eye-tracking function, the gaze direction is calculated together, and the first corresponding to the stimuli recognition position moved in the virtual space in the gaze direction and the gaze direction 1 It is determined whether the object 10 is present.

As described above, when the head-mounted display device includes the eye tracking function, even if the head direction is toward the stimulus recognition position, if the pupil direction is not toward the stimulus recognition position, do not look at the first object 10 is judged not to be

Accordingly, it is determined that the first object 10 is gazed at only when the direction of the head is toward the stimulus recognition position and the direction of the pupil also faces the stimulus recognition position.

A method of recognizing the direction in which the head-mounted display apparatus gazes is to recognize the direction using a sensor, and the type of sensor includes a motion detection sensor including a gyro sensor and an acceleration sensor and a direction detection sensor for detecting the direction. include all

The stimulus recognition position to which the first object 10 moves is configured in the form of a dot, and the user's gaze direction may be moved as it sequentially moves from the existing position to the change position.

If the user does not concentrate during training, the visual field is blurred, and as the visual field is blurred, the visual stimulus provided to the peripheral visual field may not be recognized.

Accordingly, the present invention provides the first object 10 by changing the stimulus recognition position in the three-dimensional space, thereby preventing the user from not concentrating during training and thus missing actually perceptible visual stimuli, thereby improving the training result. accuracy can be increased.

11 is a diagram for explaining the types of various stimuli applied to stimulate each region responsible for visual perception in the brain.

Referring to FIG. 11 , it can be seen that each area responsible for time is displayed separately.

By providing stimuli using various types of stimuli, not only the improvement of the disability-occurring area itself, but also training in areas other than the disability-occurring area can be used to replace what cannot be seen as damage in the disorder-generating area. .

In the case of the region V1 of FIG. 11 , as a region for recognizing horizontal and vertical division, the second object 20 and the third object may be provided in a horizontal or vertical form to stimulate the V1 region.

In the case of region V4 of FIG. 11 , as a region for recognizing color, depth, and shape, the second object 20 and the third object 30 are provided in the same or different rotational directions, or the second object 20 ) and the third object 30 may be stimulated by adjusting the provided depth.

In the case of the MT/V5 region of FIG. 11 , as a region for recognizing motion, speed, and direction, the second object 20 and the third object 30 are rotated in the same or different form. The MT/V5 region may be stimulated by providing or by adjusting the depth at which the second object 20 and the third object 30 are provided.

In addition, as a stimulus for treatment of a disorder, not only a visual stimulus that provides the second object 20 and the third object 30 on a screen, but also an auditory stimulus may be provided.

In an embodiment, when the subject does not well recognize that the second object 20 is provided in a portion corresponding to the impaired area, an auditory stimulus may be provided as a hint of a location where the second object 20 is provided. have. For example, when the impaired area is on the right side, the auditory stimulus on the right side may be provided together.

FIG. 12 is a diagram for explaining adjustment of provision times of a first object, a second object, and a third object as a difficulty adjustment of training for visual field disorder.

Referring to FIG. 12 , FIG. 12 is illustrated according to the passage of time, and the section in which the first object 10 moves shows the time during which the first object 10 moves from the first position to the second position. did it

In FIG. 12 , the section in which the first object 10 disappears or the first object 10 is separated and approaches is provided in which the first object 10 disappears in various shapes at the second position or the first The object 10 is divided into a first division object 60 and a second division object 70 and is provided in an approaching form.

Accordingly, after the period in which the first object 10 moves, before the time when the second object 20 and the third object 30 are provided, the first object 10 disappears, the first object 10 ) corresponds to a section in which the shape is divided into two or a shape in which the first object 10 is spread.

After the period in which the first object 10 disappears or the first object 10 is separated and provided in an approaching form, the second object 20 and the third object 30 are provided.

As an embodiment, when the first object 10 disappears or the first object 10 simply disappears without separation in a section in which the first object 10 is separated and provided in an approaching form, the first object After 10 disappears, the second object 20 and the third object 30 are provided, and the first object 10 may gradually disappear within the disappearing period, or may disappear all at once.

In another embodiment, when the first object 10 disappears or the first object 10 is separated and provided in an approaching form, in a section in which the first object 10 is separated and provided in an approaching form, the corresponding section In , the first object 10 is provided in a form approaching from the user's field of view while being separated into two first divided objects 60 and 70, and then the second object 20 and third object 30 are provided. When is reached on the time and area provided, the first division object 60 and the second division object 70 approaching while being separated disappear and the second object 20 and the third object 30 are provided, or The first division object 60 and the second division object 70 approaching while being separated are changed to the second object 20 and the third object 30 and provided.

In the case of the time interval shown in FIG. 12 , it is possible to adjust for each condition of the subject, and by adjusting the time interval, treatment of visual field disorders of the subject can be effectively performed.

13 is a diagram for explaining angle adjustment of a viewing range provided by a second object and a third object;

Referring to FIG. 13 , when the second object 20 and the third object 30 are provided in a diagonal direction to the visual field impaired area 40 and the normal area 50 , the second object 20 and the third object The viewing range in which (30) is provided falls within a predetermined angular range with respect to the central field of view.

If the angle is too small, the difference between the central field of view and the positions of the second and third objects 20 and 30 is small, so that training for visual field disorders is not performed properly in a state in which the user can see almost the same.

Therefore, setting the angle is important, and it is preferable to set it to about 15°.

However, the angle of 15° is not fixed, and there are situations in which training is possible only by increasing or decreasing the angle according to the condition of the subject.

The angle may be increased when the subject's impaired area corresponds to 15° or more with respect to the central field of view, and the angle may be decreased if the subject's impaired area falls within a smaller angular range based on the central field of view.

A computing device for providing training for visual field disorders according to another embodiment of the present invention includes a controller and an input receiver, wherein the controller provides a virtual first object 10 on a screen, and the first object 10 is provided to move from a first position to a second position on the screen, and when the position of the first object 10 reaches the second position, the control unit moves the first object 10 on the screen After dividing and providing the first object 10 or destroying the first object 10 , the control unit provides the virtual second object 20 and the third object 30 on the screen after the first object 10 is divided and provided or disappears ), and the input receiving unit receives identification inputs for the second and third objects 20 and 30 from the user's response input device, the first location being a location farther than the second location on the screen, and the second location being the second location. The first position and the second position are positions in the subject's central field of view, and the second subject 20 and the third subject 30 are the subject's center of field of view, the normal area of the subject's field of view, and the subject's field of view. located in at least one of the disabled areas of

The above description of FIGS. 1 to 13 is equally applied to a computing device providing visual field disorder training according to the present invention.

The steps of a method or algorithm described in relation to an embodiment of the present invention may be implemented directly in hardware, as a software module executed by hardware, or by a combination thereof. A software module may contain random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any type of computer-readable recording medium well known in the art to which the present invention pertains.

As mentioned above, although embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

10: first object
20: second object
30: third object
40: field of vision impairment
50: normal area
60: first division object
70: second division object

Claims (10)

In the method performed by a head mounted display (Head Mounted Display, hereinafter referred to as 'HMD'),
outputting a 3D virtual reality-based first object on the screen of the HMD, wherein the first object is output in a form approaching from a first position to a second position on the screen;
dividing or destroying the first object on the screen when the position of the first object reaches the second position;
outputting the 3D virtual reality-based second and third objects on the screen when the first object is divided or destroyed; and
Receiving identification inputs for the second object and the third object from a response input device of the subject;
The first position and the second position are positions in a central field of view of the subject,
wherein the second object and the third object are located in at least one of a visual center of the subject, a normal region of the subject's visual field, and an impaired region of the subject's visual field. A reality-based visual impairment training method. According to claim 1,
The second object and the third object are output in a first combination,
In the first combination, any one of the second subject and the third subject is located in a normal region of the subject's visual field, and the other is located in an impaired region of the subject's visual field. A training method for improving visual acuity based on 3D virtual reality. 3. The method of claim 2,
The second object and the third object are output in a predetermined ratio of the first combination and the second combination,
In the second combination, both the second object and the third object are located in a normal region of the subject's field of vision. According to claim 1,
The second object and the third object are output in a third combination,
In the third combination, any one of the second subject and the third subject is located in the center of the subject's visual field, and the other is located in the impaired area of the subject's visual field. A training method for visual impairment improvement based on dimensional virtual reality. According to claim 1,
When the HMD divides the first object on the screen in the step of dividing or destroying the first object, the first object is
A first division object and a second division object are divided at the second position, and while the first object is divided, the depths of the first division object and the second division object are the same as or different from those of the first object. regulated,
The step of outputting the second object and the third object includes:
After the first object is divided into the first division object and the second division object, the HMD replaces the first division object and the second division object in a predetermined area to obtain the virtual second object and the second division object. Characterized in outputting a third object,
A training method for improving vision impairment based on 3D virtual reality using HMD. According to claim 1,
When the HMD destroys the first object on the screen in the step of dividing or destroying the first object, the first object is
or disappear in a scattered form in the second position,
or disappear in the form of spreading in the second position,
characterized in that the provided depth of the first object in the form of scattered or spread is controlled while it is scattered or spread in the second position,
A training method for improving vision impairment based on 3D virtual reality using HMD. According to claim 1,
The first object is output in different colors from the first position and the second position,
The second object and the third object, characterized in that randomly output to be the same or different from each other in a horizontal pattern or a vertical pattern,
A training method for improving vision impairment based on 3D virtual reality using HMD. According to claim 1,
The second object and the third object are output in the form of a rotating figure,
Rotation directions of the second object and the third object are randomly output to be the same or different from each other,
A training method for improving vision impairment based on 3D virtual reality using HMD. According to claim 1,
The second object and the third object are randomly output so that the depth output on the screen is the same or different from each other,
The depth at which the second object and the third object are output is,
Characterized in representing the distance of the second object or the third object from the eye position of the subject,
A training method for improving vision impairment based on 3D virtual reality using HMD. communication department;
display unit; and
Including; a control unit for controlling the communication unit and the display unit;
The control unit is
outputting a first object based on 3D virtual reality on the screen of the display unit, wherein the first object is output in a form approaching from a first position to a second position on the screen;
When the position of the first object reaches the second position, dividing or destroying the first object on the screen,
When the first object is divided or disappears, outputting the 3D virtual reality-based second object and the third object on the screen,
Receiving identification inputs for the second object and the third object from a response input device of the subject through the communication unit,
The first position and the second position are positions in a central field of view of the subject,
wherein the second object and the third object are located in at least one of a visual field center of the subject, a normal region of the subject's visual field, and an impaired region of the subject's visual field. An HMD that provides a training method for improving vision impairment.

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