CN115868917A - Method and device for detecting adjustment amplitude - Google Patents
Method and device for detecting adjustment amplitude Download PDFInfo
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- CN115868917A CN115868917A CN202310154050.4A CN202310154050A CN115868917A CN 115868917 A CN115868917 A CN 115868917A CN 202310154050 A CN202310154050 A CN 202310154050A CN 115868917 A CN115868917 A CN 115868917A
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Abstract
The invention discloses a detection method and a device for adjusting amplitude, which at least comprise the following steps: establishing a virtual reality game scene through VR equipment, and setting a first visual target in the virtual reality game scene according to eye information of a user; according to a preset diopter detection rule and a movement step length, responding to confirmation operation of a user to enter a detection mode, and controlling the first sighting target to move for multiple times according to the detection rule and the movement step length; stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting target; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time. The invention sets the detection rule by utilizing the characteristics between the human eye refractive structure and the adjustment amplitude so as to detect the adjustment amplitude of the user according to the movement distance of the sighting target and improve the accuracy of the detection of the adjustment amplitude.
Description
Technical Field
The invention relates to the technical field of visual functions, in particular to a method and a device for detecting adjustment amplitude.
Background
Currently, the incidence of dysregulation is high, with the most common dysregulation being under-regulation and reduced sensitivity of regulation. Patients with dysregulated function may exhibit a range of symptoms associated with asthenopia, especially when reading or otherwise working at close distances. Symptoms include eye-related symptoms (e.g., soreness of the eyes, pain in the eyes, headache, blurred vision, double vision, etc.) and behavior-related symptoms (e.g., inattention, slow reading speed, repeated reading, jumping, difficulty in remembering the reading, etc.), which severely affect the learning, working, and daily life of the patient. With the widespread use of electronic products and the extension of short-distance working time, the incidence of asthenopia is increasing, especially in teenager groups.
However, the mechanism and principle of improving the regulatory function are not clear at present, and the amount of the regulatory stimulus actually generated during the course of the regulatory function training is difficult to measure by the conventional method. When the user's adjustment function is not clear, the training program most effective to the user cannot be customized by a personalized program.
The existing adjusting amplitude measuring methods mainly comprise two methods: the push method and the negative lens method. However, the measurement standard and the measurement process of the two methods are not adjusted according to the visual function of the eyeball of the user, which easily causes the result to have deviation and poor accuracy. For example: when the propulsion method is used for measuring the adjusting amplitude, when the adjusting function of a user is good and the adjusting amplitude is large, the deviation of moving one centimeter by using the propulsion method is large; when the adjustment range is measured by the negative lens method, if the near vision power of the user is too high, the situation that the user cannot distinguish due to the size of the sighting target exists in the process of adding the negative lens, so that the measured adjustment range is smaller.
Disclosure of Invention
The invention provides a method and a device for detecting an adjustment range, which are used for solving the technical problems that in the existing adjustment range measuring method, the measurement standard and the measurement process are not correspondingly adjusted according to the eyeball visual function of a user, so that the result is easy to deviate and the accuracy is poor.
In order to solve the above technical problem, an embodiment of the present invention provides a method for detecting an adjustment amplitude, including:
establishing a virtual reality game scene through VR equipment, and setting a first visual target in the virtual reality game scene according to eye information of a user;
according to a preset diopter detection rule and a movement step length, responding to confirmation operation of a user to enter a detection mode, and controlling the first sighting target to move for multiple times according to the detection rule and the movement step length;
stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting mark; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time.
The method comprises the steps of setting a detection rule and a moving step length of a first visual target through diopter, setting the detection rule by utilizing the characteristics between the human eye refraction structure and the adjustment amplitude, and controlling the first visual target to move so that eyeballs of a user move along with the first visual target, so as to detect the adjustment amplitude of the user according to the moving distance of the visual target; and set up the first sighting target according to user's eye information, individualized setting adjustment range detects the process, improves the accuracy that adjustment range detected. Meanwhile, a virtual reality game scene is established by utilizing VR equipment, and objects are seen by eyes of a user, so that the adjustment range of the user can be detected according to the VR equipment at any time and any place without the operation of professionals, and the detection convenience is improved.
Further, establish virtual reality game scene through VR equipment, set up first sighting target in according to user's eye information in virtual reality game scene, specifically do:
acquiring basic information of a user, wherein the basic information comprises eye information and age;
acquiring the optimal corrected vision of the user according to the eye information, and setting the size of the first sighting mark according to the optimal corrected vision;
the first sighting target is arranged at a first position right in front of the visual field of the user in the virtual reality game scene.
The size of the first sighting target is adjusted through the eye information and the optimal correction vision of the user, so that the adjustment amplitude detection process is set in a personalized mode, the matching performance of the adjustment amplitude detection and the user is improved, and the accuracy of the adjustment amplitude detection is improved.
Further, the entering of the detection mode in response to the confirmation operation of the user according to the diopter preset detection rule and the movement step length specifically includes:
presetting a detection rule according to diopter; wherein the detection rule includes a movement rule of the first optotype and a gradient of an adjustment amplitude; the first sighting mark is an element with direction indicativity;
setting a moving step length according to the gradient of the adjustment amplitude, responding to a direction confirmation operation of a user, and judging whether the direction confirmation operation is correct or not according to the direction indicativity of the first sighting mark; and when the direction confirms that the operation is correct, entering a detection mode.
According to the invention, by utilizing the relation characteristic of the refraction structure and the adjustment amplitude of human eyes and according to the preset diopter detection rule, the first visual target is controlled to move so that the eyeball of the user moves along with the first visual target, the adjustment amplitude of the user is detected according to the movement distance of the first visual target, the purpose of detecting the adjustment amplitude of the user is achieved, meanwhile, the step length of each movement is calculated according to the diopter and the adjustment amplitude gradient, and the detection accuracy is improved.
Further, the controlling the first sighting target to move for multiple times according to the detection rule and the moving step length specifically includes:
after entering a detection mode, when the first sighting mark finishes one-time movement, responding to the direction judgment operation of a user, and judging whether the direction judgment operation is correct or not according to the direction indicativity of the first sighting mark;
when the direction judgment operation is correct, calculating the current moving step length according to the current moving times and the gradient of the adjusting amplitude;
and controlling the first sighting target to move again according to the current moving step length, and simultaneously converting the direction of the first sighting target.
The invention controls the first sighting target to move gradually according to the movement step length set by the diopter, and judges whether the operation of the user is correct or not according to the direction of the first sighting target so as to judge the adjusting force of the eyes of the user, thereby improving the accuracy of the adjusting amplitude detection process.
Further, the determining whether the direction determination operation is correct according to the direction indicative property of the first optotype further includes:
and when the direction judgment operation is wrong, the direction judgment operation of the user is obtained and responded again, and the correctness of the direction judgment operation is confirmed again.
The invention judges the correctness of the user operation by responding the judgment operation of the user for many times, thereby improving the fault tolerance of the user operation.
Further, stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting target; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time, specifically:
when the direction judgment operation confirmation times reach a preset threshold value, stopping moving and exiting the detection mode;
recording the moving distance and the detection time of the first sighting target, and calculating a first adjusting amplitude gradient according to the moving distance and a first gradient algorithm;
and evaluating the adjustment amplitude of the user according to the first adjustment amplitude gradient and the detection time.
Further, the evaluating the adjustment amplitude of the user according to the moving distance and the detection time specifically includes:
calculating the minimum adjustment amplitude of the user according to the age of the user and a minimum adjustment amplitude algorithm;
and evaluating the adjustment amplitude of the user according to the minimum adjustment amplitude, the first adjustment amplitude gradient and the detection time, and generating a detection report.
According to the invention, the moving distance and the detection time of the first sighting target in the detection process are recorded, so that the first adjustment amplitude gradient of the user is calculated, the minimum adjustment amplitude of the user is calculated according to the age of the user, and the adjustment force of the eyes of the user is evaluated according to the first adjustment amplitude gradient and the minimum adjustment amplitude.
Further, after the evaluating the adjustment amplitude of the user according to the moving distance and the detection time, the method further comprises:
matching a visual training scheme according to the adjustment amplitude of the user; and adjusting the difficulty of the visual training scheme according to the adjustment amplitude.
According to the invention, the adjustment amplitude of the user is calculated by utilizing diopter, so that the personalized visual training scheme is matched, the visual training scheme is more matched with the binocular visual condition of the user, and the difficulty of the visual training scheme is adjusted according to the adjustment amplitude, so that the visual training effect is improved.
In a second aspect, an embodiment of the present invention further provides an apparatus for detecting an adjustment amplitude, including: the device comprises an initialization module, a detection module and an evaluation module;
the initialization module is used for establishing a virtual reality game scene through VR equipment and setting a first sighting target in the virtual reality game scene according to eye information of a user;
the detection module is used for responding to the confirmation operation of a user to enter a detection mode according to a preset detection rule and a moving step length of diopter and controlling the first sighting target to move for multiple times according to the detection rule and the moving step length;
the evaluation module is used for stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting target; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time.
In a third aspect, an embodiment of the present invention further provides a computer device, including: the device comprises a processor, a communication interface and a memory, wherein the processor, the communication interface and the memory are connected with each other, executable program codes are stored in the memory, and the processor is used for calling the executable program codes and executing the amplitude regulation detection method.
Drawings
Fig. 1 is a schematic flow chart of a method for detecting an adjustment amplitude according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a first sighting target of the method for detecting an adjustment amplitude according to the embodiment of the present invention;
FIG. 3 is a schematic diagram of imaging of a VR device with the amplitude modulation detection method provided by the embodiments of the present invention;
fig. 4 is a schematic structural diagram of a detection apparatus for adjusting amplitude according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for detecting an adjustment amplitude according to an embodiment of the present invention, which includes steps 101 to 103, specifically as follows:
step 101: establishing a virtual reality game scene through VR equipment, and setting a first visual target in the virtual reality game scene according to eye information of a user;
in this embodiment, VR technology (Virtual Reality) is a computer simulation system, and can create and experience a Virtual world. The visual target movement detection system can realize multi-perception, is strong in interactivity and interestingness, and can be used for carrying out personalized scheme customization by utilizing the adjustment range of a user in the VR equipment quantitative detection visual target movement process, so that the adjustment function of the user is improved.
In this embodiment, the virtual reality game scene is established through the VR device, and the first sighting target is set in the virtual reality game scene according to the eye information of the user, which specifically includes:
acquiring basic information of a user, wherein the basic information comprises eye information and age;
acquiring the optimal corrected vision of the user according to the eye information, and setting the size of the first sighting mark according to the optimal corrected vision;
the first sighting target is arranged at a first position right in front of the visual field of the user in the virtual reality game scene.
In this embodiment, before each detection, basic information of the user needs to be filled, where the basic information of the user includes a name, a birth date, a gender, and eye information of the user, and the eye information at least includes left and right eye corrected eyesight. If the current user information and the historical user information, if the user information changes, the current user information needs to be modified, and if the user information does not change, the current user information and the historical user information are ignored.
Referring to fig. 2, fig. 2 is a first visual target schematic diagram of the method for detecting an adjustment amplitude according to the embodiment of the present invention.
As a specific example of the embodiment of the present invention, when the adjustment amplitude measurement is performed, a standard E-word visual chart is used, each visual target is composed of 5 views as shown in fig. 2, and each stroke has the same width. The sighting target comprises four directions of up, down, left and right.
In this embodiment, the first optotype size is set to a single optotype on the top row of the best corrected vision in the standard eye chart, thereby improving the detection accuracy.
In this embodiment, the size of the first sighting target is adjusted through the eye information and the best correction eyesight of the user, so that the adjustment amplitude detection process is set individually, the matching between the adjustment amplitude detection and the user is improved, and the accuracy of the adjustment amplitude detection is improved.
Step 102: according to a preset diopter detection rule and a movement step length, responding to confirmation operation of a user to enter a detection mode, and controlling the first sighting target to move for multiple times according to the detection rule and the movement step length;
in this embodiment, the entering of the detection mode in response to the confirmation operation of the user according to the preset diopter detection rule and the movement step length specifically includes:
presetting a detection rule according to diopter; wherein the detection rule includes a movement rule of the first optotype and a gradient of an adjustment amplitude; the first sighting mark is an element with direction indicativity;
setting a moving step length according to the gradient of the adjustment amplitude, responding to a direction confirmation operation of a user, and judging whether the direction confirmation operation is correct or not according to the direction indicativity of the first sighting mark; and entering a detection mode when the direction is confirmed to operate correctly.
In this embodiment, in a natural state, according to the refractive structure of the human eye, when the visual target is at a certain threshold distance from the human eye, the light emitted by the visual target enters the human eye in the form of parallel light, and it can be considered that the human eye does not need to pay extra adjustment, that is, the adjustment amplitude is 0 at this time. As the optotype is gradually brought closer to the eye, the accommodative stimulus increases, and the accommodation that the eye needs to deliver gradually increases. If the accommodation ability of the human eye is sufficient to compensate for the accommodation stimulus at that time, the visual target can be seen clearly, and if the accommodation ability is difficult to compensate for, the visual target is blurred. Therefore, real visual object perception is simulated through the VR equipment, so that the process that the visual target stimulates human eyes from far to near is simulated, the adjustment amplitude of the user is quantitatively detected, and the detection rule is preset.
Referring to fig. 3, fig. 3 is a schematic diagram of imaging of a VR device according to the detection method for adjusting amplitude of the present invention.
In the present embodiment, in the VR mode, the position of the screen is kept relatively unchanged, and the change of the imaging plane is realized by the change of the parallax and is divided into the imaging plane before the screen and the imaging plane after the screen. The imaging plane is changed, so that the adjustment of a user is changed, and the purpose of checking the adjustment function is achieved.
In this embodiment, first, VR realizes binocular vision through two screens, that is, images seen by two eyes respectively seeing different screens are horizontally separated to form horizontal parallax, which is the basis for forming stereoscopic vision (depth sensation), and at this time, the user must pay a fusion function (convergence/separation) to compensate for the horizontal parallax and form a virtual image. The virtual image formed will be in front of or behind the original screen, i.e. the imaging plane (as shown). In the process of paying for the fusion function, the fusibility adjustment is generated at the same time, and the virtual image can stimulate the generation of the adjustment if the virtual image is fuzzy.
In this embodiment, the first visual target is designated in the detection rule to move from an initial position according to a preset movement step length for multiple times, and when the first visual target ends, the adjustment range of the user is calculated according to the distance between the first visual target and the positions of the two eyes of the user.
In this embodiment, diopter is the unit of the magnitude of the refractive power, and is expressed by D, that is, it means that parallel light rays pass through the refractive material, and the refractive power of the refractive material is 1 diopter or 1D when the focus is 1 m.
In the present embodiment, the moving step is preset to one gradient, i.e., 1D.
In this embodiment, when the measurement of the adjustment range is performed, the optotype is first imaged at 5 meters, and at this time, the user needs to confirm whether the first optotype can be seen clearly, and to confirm the direction of the first optotype by pressing up/down/left/right/keys according to the direction of the optotype. If the user correctly identifies the direction, entering a detection mode and formally starting measurement.
In this embodiment, if the user does not correctly recognize the direction, the size of the first visual target is adjusted, and whether the user can see the first visual target clearly is re-determined.
In the embodiment, by utilizing the relation characteristic of the refraction structure and the adjustment amplitude of human eyes and presetting the detection rule according to the diopter, the first sighting target is controlled to move so that the eyeball of the user moves along with the first sighting target, the adjustment amplitude of the user is detected according to the movement distance of the first sighting target, the purpose of detecting the adjustment amplitude of the user is achieved, meanwhile, the step length of each movement is calculated according to the diopter and the adjustment amplitude gradient, and the detection accuracy is improved.
In this embodiment, the controlling the first sighting target to move for multiple times according to the detection rule and the moving step specifically includes:
after entering a detection mode, when the first sighting mark finishes one-time movement, responding to the direction judgment operation of a user, and judging whether the direction judgment operation is correct or not according to the direction indicativity of the first sighting mark;
when the direction judgment operation is correct, calculating the current moving step length according to the current moving times and the gradient of the adjusting amplitude;
and controlling the first sighting target to move again according to the current moving step length, and simultaneously converting the direction of the first sighting target.
In this embodiment, after entering the detection mode and starting formal measurement, the imaging position of the first optotype is changed with 1D as a gradient.
In this embodiment, the modulation stimulus is equal to the inverse of the modulation amplitude gradient, in meters.
In this embodiment, the detection rule specifies that, when the first visual target moves for the first time, a gradient of 1D is added to the direction of human eyes, that is, the accommodation stimulation is given when the visual target is 1 meter away from the human eyes; when the first sighting mark moves for the second time, increasing the gradient of 1D to the direction of human eyes, namely adjusting stimulation when the sighting mark is 0.5 m away from the human eyes; when the first sighting mark moves for the third time, the gradient of 1D is added to the direction of human eyes, namely the adjustment stimulation when the sighting mark is 0.33 m away from the human eyes, and the like.
In this embodiment, each time the imaging position of the first optotype is changed, the direction of the optotype is changed accordingly, the user needs to press the up/down/left/right key to confirm the direction of the first optotype, and the imaging position of the first optotype can be moved again after the direction is confirmed correctly.
In this embodiment, the first sighting target is controlled to move gradually according to the movement step set by the diopter, and whether the operation of the user is correct is judged according to the direction of the first sighting target, so as to judge the adjusting force of the eyes of the user, and thus the accuracy of the adjusting amplitude detection process is improved.
Step 103: stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting mark; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time.
In this embodiment, the movement is stopped until a preset condition is reached, and the movement distance and the detection time of the first sighting target are recorded; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time, specifically:
when the direction judgment operation confirmation times reach a preset threshold value, stopping moving and exiting the detection mode;
recording the moving distance and the detection time of the first sighting target, and calculating a first adjusting amplitude gradient according to the moving distance and a first gradient algorithm;
and evaluating the adjustment amplitude of the user according to the first adjustment amplitude gradient and the detection time.
In this embodiment, after the first visual target is changed to the imaging position, the indication direction of the first visual target is also changed randomly, the user needs to confirm the direction of the first visual target again according to the up/down/left/right keys, each imaging position has three chances of confirming the direction, and if the user confirms all the chances of confirming the direction at the position for 3 times, the measurement is stopped.
In this embodiment, after stopping moving, the moving distance and the detection time of the first visual target need to be recorded, and a first adjustment amplitude gradient is calculated according to a first gradient algorithm, where the reciprocal of the distance between the current position of the first visual target and the human eye is specified as the first adjustment amplitude gradient in the first gradient algorithm, and meters is used as a unit. For example, if the initial position of the first visual target is 5m away from the human eye and the movement distance of the first visual target is 4m, the first adjustment amplitude is 1/(5-4), i.e., 1D, according to the first gradient algorithm.
In this embodiment, the evaluating the adjustment amplitude of the user according to the moving distance and the detection time specifically includes:
calculating the minimum adjustment amplitude of the user according to the age of the user and a minimum adjustment amplitude algorithm;
and evaluating the adjustment amplitude of the user according to the minimum adjustment amplitude, the first adjustment amplitude gradient and the detection time, and generating a detection report.
In this embodiment, when the user can clearly see all the E-character icons 5cm to 5m ahead, the shorter the detection time, the better the adjustment function.
In this embodiment, the age of the user is obtained, and the minimum adjustment amplitude of the user is calculated according to the minimum adjustment amplitude algorithm, where the minimum adjustment amplitude algorithm specifically includes: minimum amplitude of modulation = 15-age/4.
In this embodiment, the amplitude of the adjustment of the user is evaluated by comparing the minimum amplitude of the adjustment with the detected first amplitude of the adjustment, for example, a 16 year old male user, based on the VR device detecting the resulting first amplitude of the adjustment gradient as 6D, by the minimum amplitude of the adjustment algorithm: 15-16/4=11D, i.e. the minimum adjustment amplitude he should have is 11D, at which point it can be judged that the user has a reduced adjustment capability or insufficient adjustment.
In this embodiment, the moving distance and the detection time of the first sighting target during the detection process are recorded, so that a first adjustment amplitude gradient of the user is calculated, the minimum adjustment amplitude of the user is calculated according to the age of the user, and the adjustment forces of the two eyes of the user are evaluated according to the first adjustment amplitude gradient and the minimum adjustment amplitude.
In this embodiment, after the evaluating the adjustment amplitude of the user according to the moving distance and the detection time, the method further includes:
matching a visual training scheme according to the adjustment range of the user; and adjusting the difficulty of the visual training scheme according to the adjustment amplitude.
In this embodiment, after the detection is finished, a detection report may be generated for the user, and the training scheme may be matched for the user according to the adjustment amplitude of the user and the first adjustment amplitude gradient.
In this embodiment, the most effective training method for performing visual training is to repeat stimulation near the threshold value and gradually increase the threshold value.
In this embodiment, when the minimum adjustment amplitude of a user is 11D, it indicates that the training endpoint he needs to reach, at least 11D. Therefore, if the existing first adjustment amplitude gradient is 6D, the individualized training scheme is given according to the existing adjustment capability of the user, and the user firstly gives 5D adjustment stimulation during training, so that the user can easily complete the corresponding visual task, and then gradually increases the stimulation amount, such as 0.5D each time till 11D. After he is able to quickly complete the visual task at this stage, the gradient of the stimulus amount is increased step by step, for example, by 1D each time, and so on.
In the embodiment, the adjustment amplitude of the user is calculated by utilizing diopter, so that the personalized visual training scheme is matched, the visual training scheme is more matched with the binocular visual condition of the user, and the difficulty of the visual training scheme is adjusted according to the adjustment amplitude, so that the visual training effect is improved.
In the embodiment, a detection rule and a moving step length of a first visual target are set through diopter, the detection rule is set by utilizing the characteristics between the human eye refraction structure and the adjustment amplitude, and the first visual target is controlled to move so that the eyeball of the user moves along with the first visual target, so that the adjustment amplitude of the user is detected according to the moving distance of the visual target; and set up the first sighting target according to user's eye information, individualized setting adjustment range detects the process, improves the accuracy that adjustment range detected. Meanwhile, a virtual reality game scene is established by utilizing the VR equipment, and objects are seen by eyes of a user in a simulated manner, so that the adjustment range of the user can be detected according to the VR equipment at any time and any place without the operation of professionals, and the convenience of detection is improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a detection apparatus for adjusting amplitude according to an embodiment of the present invention, including: an initialization module 401, a detection module 402 and an evaluation module 403;
the initialization module 401 is configured to establish a virtual reality game scene through a VR device, and set a first visual target in the virtual reality game scene according to eye information of a user;
the detection module 402 is configured to preset a detection rule and a moving step length according to diopter, enter a detection mode in response to a confirmation operation of a user, and control the first sighting target to move for multiple times according to the detection rule and the moving step length;
the evaluation module 403 is configured to stop moving until a preset condition is reached, and record a moving distance and a detection time of the first sighting target; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time.
An embodiment of the present invention further provides a computer device, including: the device comprises a processor, a communication interface and a memory, wherein the processor, the communication interface and the memory are connected with each other, executable program codes are stored in the memory, and the processor is used for calling the executable program codes and executing the amplitude regulation detection method.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. A method for detecting an adjustment amplitude, comprising:
establishing a virtual reality game scene through VR equipment, and setting a first visual target in the virtual reality game scene according to eye information of a user;
according to a preset diopter detection rule and a movement step length, responding to confirmation operation of a user to enter a detection mode, and controlling the first sighting target to move for multiple times according to the detection rule and the movement step length;
stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting mark; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time.
2. The method for detecting an adjustment amplitude according to claim 1, wherein the virtual reality game scene is established by a VR device, and a first visual target is set in the virtual reality game scene according to the eye information of the user, specifically:
acquiring basic information of a user, wherein the basic information comprises eye information and age;
acquiring the optimal corrected vision of the user according to the eye information, and setting the size of the first sighting mark according to the optimal corrected vision;
the first sighting target is arranged at a first position right in front of the visual field of the user in the virtual reality game scene.
3. The method for detecting an adjustment amplitude according to claim 2, wherein the detection mode is entered in response to the user's confirmation operation according to the preset diopter detection rule and the moving step length, specifically:
presetting a detection rule according to diopter; wherein the detection rule includes a movement rule of the first optotype and a gradient of an adjustment amplitude; the first sighting mark is an element with direction indicativity;
setting a moving step length according to the gradient of the adjustment amplitude, responding to a direction confirmation operation of a user, and judging whether the direction confirmation operation is correct or not according to the direction indicativity of the first sighting mark; and entering a detection mode when the direction is confirmed to operate correctly.
4. The method for detecting an adjustment amplitude according to claim 3, wherein the controlling the first visual target to move for a plurality of times according to the detection rule and the moving step length comprises:
after entering a detection mode, when the first sighting target finishes one-time movement, responding to the direction judgment operation of a user, and judging whether the direction judgment operation is correct or not according to the direction indicativity of the first sighting target;
when the direction judgment operation is correct, calculating the current moving step length according to the current moving times and the gradient of the adjusting amplitude;
and controlling the first sighting target to move again according to the current moving step length, and simultaneously converting the direction of the first sighting target.
5. The amplitude modulation detection method according to claim 4, wherein the judging whether the direction judgment operation is correct or not based on the direction indicativity of the first optotype further comprises:
and when the direction judgment operation is wrong, the direction judgment operation of the user is obtained and responded again, and the correctness of the direction judgment operation is confirmed again.
6. The amplitude modulation detection method according to claim 5, wherein the movement is stopped until a preset condition is reached, and a movement distance and a detection time of the first sighting mark are recorded; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time, specifically:
when the direction judgment operation confirmation times reach a preset threshold value, stopping moving and exiting the detection mode;
recording the moving distance and the detection time of the first sighting target, and calculating a first adjusting amplitude gradient according to the moving distance and a first gradient algorithm;
and evaluating the adjustment amplitude of the user according to the first adjustment amplitude gradient and the detection time.
7. The method for detecting an adjustment amplitude according to claim 6, wherein the estimating of the adjustment amplitude of the user based on the movement distance and the detection time comprises:
calculating the minimum adjustment amplitude of the user according to the age of the user and a minimum adjustment amplitude algorithm;
and evaluating the adjustment amplitude of the user according to the minimum adjustment amplitude, the first adjustment amplitude gradient and the detection time, and generating a detection report.
8. The adjustment amplitude detection method according to claim 1, further comprising, after said evaluating the adjustment amplitude of the user based on the movement distance and the detection time:
matching a visual training scheme according to the adjustment amplitude of the user; and adjusting the difficulty of the visual training scheme according to the adjustment amplitude.
9. A detection apparatus for adjusting amplitude, comprising: the device comprises an initialization module, a detection module and an evaluation module;
the initialization module is used for establishing a virtual reality game scene through VR equipment and setting a first sighting target in the virtual reality game scene according to eye information of a user;
the detection module is used for responding to the confirmation operation of a user to enter a detection mode according to a preset detection rule and a moving step length of diopter and controlling the first sighting target to move for multiple times according to the detection rule and the moving step length;
the evaluation module is used for stopping moving until a preset condition is reached, and recording the moving distance and the detection time of the first sighting target; and evaluating the adjustment amplitude of the user according to the moving distance and the detection time.
10. A computer device, comprising: a processor, a communication interface and a memory, which are connected to each other, wherein the memory stores executable program code, and the processor is configured to call the executable program code to execute the amplitude modulation detection method according to any one of claims 1 to 8.
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