Unilateral space neglect rehabilitation evaluation equipment based on line processing

Abstract

The invention discloses unilateral space ignoring rehabilitation evaluation equipment based on line processing, and belongs to the technical field of man-machine interaction. The unilateral space ignoring rehabilitation evaluation equipment comprises a line deletion test module, a line equally-dividing test module and a visual space perception parameter acquisition module, the line deletion test module is used for carrying out line deletion test and obtaining line deletion parameters according to eye rays and hand rays in the line deletion test; the line equally-dividing test module is used for carrying out line equally-dividing test and obtaining line equally-dividing parameters according to eye rays and hand rays in the line equally-dividing test; and the visual space perception parameter obtaining module is used for obtaining a target visual space perception parameter according to the grid line parameter and the line equally-dividing parameter. According to the method, the data basis for comprehensively evaluating the single-side visual space perception ability of the person to be detected is provided by collecting the line deletion and equal division data, the visual space perception ability data is accurately obtained, and the situation of the visual space perception ability can be accurately identified by using the comprehensive data.

Description

Technical Field

[0001] The present application relates to the field of human-computer interaction technology, and in particular to a unilateral spatial neglect rehabilitation assessment device based on line processing. Background Art

[0002] In-depth research on unilateral visual-spatial perception ability is crucial to understanding how the brain processes spatial information. Accurate measurement of unilateral visual-spatial perception ability can not only help us understand normal cognitive function, but also assist in the diagnosis and treatment of some specific neuropsychological disorders, such as unilateral neglect. Unilateral neglect is a common sequelae of brain injury. In this state, the subject is often unable to pay attention to spatial or visual information on the opposite side of the body. In order to better evaluate and understand this disorder, it is particularly important to develop techniques and tools that can accurately measure unilateral visual-spatial perception ability.

[0003] At present, the traditional method for obtaining data related to unilateral visual-spatial perception ability is usually through paper and pen, etc., but traditional tests may not be accurate enough to quantify the slight changes in unilateral visual-spatial perception ability, and it is difficult to achieve accurate quantification of visual-spatial perception parameters. Secondly, these methods can usually only reflect the state of visual-spatial perception ability in a single task, and cannot comprehensively evaluate the distribution of unilateral visual-spatial perception ability of individuals in different situations. In the process of data collection and analysis, real-time monitoring and rapid feedback may not be achieved, which is particularly important for dynamic evaluation and real-time intervention.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of this application is to provide a unilateral spatial neglect rehabilitation assessment device based on line processing, aiming to solve the technical problem of how to accurately obtain visual-spatial perception ability data.

[0006] To achieve the above-mentioned purpose, the present application proposes a unilateral spatial neglect rehabilitation assessment device based on line processing, wherein the unilateral spatial neglect rehabilitation assessment device based on line processing comprises a line deletion test module, a line equal division test module and a visual space perception parameter acquisition module;

[0007] The line-deletion test module is used to perform a line-deletion test and obtain line-deletion parameters according to eye rays and hand rays in the line-deletion test;

[0008] The line division test module is used to perform a line division test and obtain line division parameters according to eye rays and hand rays in the line division test;

[0009] The visual space perception parameter acquisition module is used to obtain the target visual space perception parameter according to the line deletion parameter and the line division parameter.

[0010] In one embodiment, the line-deletion test module is further used to detect eye rays and hand rays;

[0011] A first adjustment parameter is generated according to the eye ray and the hand ray;

[0012] Deleting lines according to the first adjustment parameter;

[0013] Get the line deletion parameters based on the deleted lines.

[0014] In one embodiment, the deletion test module includes a first display unit and a first mixed reality unit;

[0015] The first display unit is used to display a three-dimensional image, wherein the three-dimensional image includes preset lines;

[0016] The first mixed reality unit is used to generate a first adjustment parameter to lock the lines in the three-dimensional image according to the eye ray and / or hand ray in the line deletion test, thereby generating the first adjustment parameter.

[0017] In one embodiment, the first mixed reality unit is further used to monitor the locking time of the eye ray and / or hand ray on the line in the line deletion test, and delete the line based on the first adjustment parameter;

[0018] The first mixed reality unit is further used to detect a gesture and delete the line based on the first adjustment parameter;

[0019] The first mixed reality unit is also used to detect voice commands and delete the lines based on the first adjustment parameters.

[0020] In one embodiment, the deletion test module further includes a first information recording unit and a first parameter acquisition unit;

[0021] The first information recording unit is used to record the number of lines deleted in the first display unit;

[0022] The first parameter acquisition unit is used to obtain a first parameter according to the number of lines deleted in the first display unit;

[0023] The first parameter acquisition unit is further used to acquire a left line deletion parameter of the three-dimensional image and a right line deletion parameter of the three-dimensional image;

[0024] The first parameter acquisition unit is further configured to obtain a line deletion parameter according to the first parameter, a left line deletion parameter of the three-dimensional image, and a right line deletion parameter of the three-dimensional image.

[0025] In one embodiment, the line division test module is also used to detect eye rays and hand rays;

[0026] A second adjustment parameter is generated according to the eye ray and the hand ray;

[0027] Determine to divide the line equally according to the second adjustment parameter;

[0028] The line division parameters are obtained based on the equally divided wooden sticks.

[0029] In one embodiment, the line bisection test module includes a second display unit and a second mixed reality unit;

[0030] The second display unit is used to display a three-dimensional image, wherein the three-dimensional image includes a preset wooden stick;

[0031] The second mixed reality unit is used to generate a second adjustment parameter to lock the wooden stick in the three-dimensional image according to the eye ray and / or hand ray in the line bisection test, thereby generating a second adjustment parameter.

[0032] In one embodiment, the second mixed reality unit is further used to determine the locking time of the eye ray and / or hand ray on the wooden stick in the line division test, and divide the wooden stick into lines based on the second adjustment parameter;

[0033] The second mixed reality unit is further used to detect gestures and divide the wooden stick into equal parts by lines based on the second adjustment parameter;

[0034] The second mixed reality unit is further used to detect voice commands and divide the wooden stick into equal parts based on the second adjustment parameter.

[0035] The line division test module also includes a second information recording unit, a timing unit, and a second parameter acquisition unit;

[0036] The second information recording unit is used to record the number of equal parts of the wooden stick in the second display unit;

[0037] The second information recording unit is further used to record the percentage of the position locked by the eye ray and / or hand ray when each wooden stick is divided into equal parts, which deviates from the middle point of the wooden stick;

[0038] The timing unit is used to record the time it takes for the eye ray to travel from the starting point to the target stick;

[0039] The second parameter acquisition unit is used to obtain the second parameter according to the number of equal parts of the wooden stick in the second display unit and the percentage of deviation from the middle point of the wooden stick;

[0040] The second parameter acquisition unit is further used to obtain the line division parameter according to the number of equal divisions of the wooden stick, the percentage of deviation from the middle point of the wooden stick, the time for the sight ray to travel from the starting point to the target wooden stick, and the second parameter.

[0041] In one embodiment, the visual space perception parameter acquisition module is further used to normalize the line deletion parameter and the line equal division parameter to obtain a normalized deletion parameter and a normalized line equal division parameter;

[0042] The attention parameter acquisition module is also used to perform sample normal distribution processing on the normalized deletion parameter and the normalized line division parameter to obtain the target visual space perception parameter.

[0043] The unilateral spatial neglect rehabilitation assessment device based on line processing proposed in this application has at least the following technical effects:

[0044] The unilateral spatial neglect rehabilitation assessment device based on line processing includes a line deletion test module, a line division test module and a visual space perception parameter acquisition module; the line deletion test module is used to perform a line deletion test and obtain line deletion parameters according to the eye rays and hand rays in the line deletion test; the line division test module is used to perform a line division test and obtain line division parameters according to the eye rays and hand rays in the line division test; the visual space perception parameter acquisition module is used to obtain target visual space perception parameters according to the line deletion parameters and the line division parameters. The device combines the two methods of line deletion test and line division test, and can evaluate the test object from different angles. The device can record the eye rays and hand rays during the line deletion test and line division test to capture the distribution of spatial visual-spatial perception ability during visual search and action execution. The device can convert the test results into specific parameters (line deletion parameters and line division parameters). These parameters can quantify the degree of unilateral neglect of the subject and provide more accurate data support for clinicians. By combining the line deletion parameters and line division parameters, the device can calculate the target visual-spatial perception parameters, which helps to identify the specific area and degree of neglect of the subject. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 This is a schematic diagram of the module structure of the first embodiment of the unilateral spatial neglect rehabilitation assessment device based on line processing of the present application;

[0048] Figure 2 A schematic diagram of a line deletion test provided in Embodiment 1 of the unilateral spatial neglect rehabilitation assessment device based on line processing of the present application;

[0049] Figure 3 A schematic diagram of a line-division test provided in Embodiment 1 of the unilateral spatial neglect rehabilitation assessment device based on line processing of the present application;

[0050] Figure 4 This is a schematic diagram of the module structure of the second embodiment of the unilateral spatial neglect rehabilitation assessment device based on line processing of the present application;

[0051] Figure 5 This is a schematic diagram of the module structure of the third embodiment of the unilateral spatial neglect rehabilitation assessment device based on line processing of the present application.

[0052] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0054] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0055] Focusing on the technical issue of how to accurately obtain visual-spatial perception ability data.

[0056] The present application proposes a unilateral spatial neglect rehabilitation assessment device based on line processing. Through the line deletion test, it can accurately capture the user's visual focus (eye rays) and action execution trajectory (hand rays) during the test. These data are converted into key line deletion parameters through intelligent analysis, providing a quantitative basis for evaluating the user's unilateral visual-spatial perception ability. Through the line division task, the user's ability to process spatial information is further explored. The user's visual and motion data when completing the division task is accurately recorded, and then the line division parameters are generated. These parameters reveal the user's characteristics in spatial positioning and visual-spatial perception ability allocation; the visual-spatial perception parameter acquisition module integrates the line deletion parameters and line division parameters, and uses advanced algorithms to calculate the target visual-spatial perception parameters. This parameter comprehensively reflects the user's attention to unilateral spatial information in a specific task, and provides strong data support for the diagnosis of unilateral neglect.

[0057] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a mixed reality head-mounted display device (HoloLens 2 or HoloLens 3), an augmented reality device (AR), a mixed reality device (MR), 3D glasses, a unilateral spatial neglect rehabilitation assessment device based on line processing, etc. The following takes a unilateral spatial neglect rehabilitation assessment device based on line processing as an example to illustrate this embodiment and the following embodiments.

[0058] Based on this, the embodiment of the present application provides a unilateral spatial neglect rehabilitation assessment device based on line processing, referring to Figure 1 , Figure 1 This is a schematic diagram of the module structure of the first embodiment of the unilateral spatial neglect rehabilitation assessment device based on line processing of the present application.

[0059] The unilateral spatial neglect rehabilitation assessment device based on line processing includes a line deletion test module 10, a line division test module 20 and a visual space perception parameter acquisition module 30;

[0060] It should be noted that this strategy uses a unilateral spatial neglect rehabilitation assessment device based on line processing to assist the test subject. The device is equipped with an eye tracking sensor to monitor the test subject's gaze focus and has multiple built-in test modules. During the test, the test subject can observe virtual object models in different scenes, and each scene requires the test subject to perform different operations for testing. During the test, the system automatically scores the test subject's performance, thus standardizing the test process.

[0061] The line-deletion test module 10 is used to perform a line-deletion test and obtain line-deletion parameters according to eye rays and hand rays in the line-deletion test;

[0062] Furthermore, the line-deletion test module 10 is also used to detect eye rays and hand rays;

[0063] A first adjustment parameter is generated according to the eye ray and the hand ray;

[0064] Deleting lines according to the first adjustment parameter;

[0065] Get the line deletion parameters based on the deleted lines.

[0066] It should be understood that the first adjustment parameter is to determine the line that the subject locks on based on the eye ray and the hand ray, and the locking time.

[0067] like Figure 2 As shown, Figure 2 This is a schematic diagram of a line deletion test provided in the first embodiment of the device for acquiring parameters of unilateral visual space perception for line processing of the present application, in which lines of different colors are virtualized at random positions in the three-dimensional space on the test software interface of the subject.

[0068] It should be noted that the number of lines: the default is 40 lines in total, which can be adjusted to generate half of them on the left and right sides directly in front of the person being tested.

[0069] Line color: Each line color is randomly selected from red / green / blue / orange / cyan / magenta / black / grey / white to ensure that there are at least 2 lines of each color during the entire test process.

[0070] Distribution of lines: The lines are distributed within a fixed range in space (equivalent to a rectangular block directly in front of the person being tested).

[0071] Test time: The test time is up to 5 minutes (the time can be set). If the time expires, the test will end immediately and the current score will be used for settlement.

[0072] It should be understood that the subject wears HoloLens 2 or other mixed reality devices and locks the lines based on two interaction methods: eye gaze or system gestures.

[0073] It should be noted that the auxiliary mixed reality device can capture the eye movement data of the test subject in real time and display it on the screen. The system clearly knows all the areas where the test subject's eyes have swept. At the same time, the software system records the test video of the test subject in real time during the test process. The video can clearly show all the visual field areas where the test subject's eyes have swept, and the playback can be viewed to assist in determining whether the test subject's eye movement function is normal.

[0074] This strategy uses QR code positioning to expand the image of the test subject, improves the user experience through computer vision technology, and scans the QR code in real time through depth sensors and high-resolution cameras to accurately detect its position and direction. The QR code is fixed on an adjustable bracket, so that it can be adjusted according to the user's height to form a suitable evaluation environment. Secondly, the data captured by the sensor and camera is used to identify and track the position of the QR code through image recognition and spatial calculation, and the data is mapped to the three-dimensional coordinate system of the device, and the image is expanded with the QR code as the center point to form a test area.

[0075] This process ensures that AR applications can accurately present virtual content in the user's field of view. At the same time, eye tracking technology uses infrared LEDs and infrared cameras to capture the user's eye movements, and calculates eye movement data in real time through image processing algorithms, thereby achieving accurate gaze point rendering.

[0076] The line division test module 20 is used to perform a line division test and obtain a line division parameter according to eye rays and hand rays in the line division test;

[0077] Furthermore, the line dividing test module 20 is also used to detect eye rays and hand rays;

[0078] A second adjustment parameter is generated according to the eye ray and the hand ray;

[0079] Determine to divide the line equally according to the second adjustment parameter;

[0080] The line division parameters are obtained based on the equally divided wooden sticks.

[0081] It should be understood that the second adjustment parameter is to determine the line that the subject locks on based on the eye ray and the hand ray, and the locking time.

[0082] like Figure 3 As shown, Figure 3 The schematic diagram of the line division test provided by the first embodiment of the device for obtaining the parameters of the unilateral visual space perception for line processing of the present application is that a wooden stick is virtualized at a random position in the three-dimensional space on the test software interface of the test subject, wherein, Figure 3 As shown, only one wooden stick appears at a time, and the long wooden stick appears first in the center of the field of vision, the long wooden stick appears above the field of vision, and the long wooden stick appears below the field of vision. Then the short wooden stick appears in the center of the left side of the field of vision, above the left side of the field of vision, and below the left side of the field of vision. Then the short wooden stick appears in the center of the right side of the field of vision, above the right side of the field of vision, and below the right side of the field of vision.

[0083] It should be noted that the number of sticks is: the default is 10 lines in total.

[0084] Wooden stick color: Each wooden stick is randomly selected from red / green / blue / orange / cyan / magenta / black / grey / white to ensure that there is at least one wooden stick of each color during the entire test.

[0085] Distribution of wooden sticks: The lines should be distributed in a fixed range in space (equivalent to a rectangular block directly in front of the person being tested), and the lengths / angles of placement of the wooden sticks should be varied.

[0086] The stick randomly appears in the left, middle, or right side of the eyes, and appears 5 times in each position.

[0087] Test time: The test time is up to 5 minutes (adjustable). If the time expires, the test will end immediately and the current score will be used for settlement.

[0088] It should be understood that this strategy will simultaneously calculate the time taken by the subject to divide the line equally for each appearance of the wooden stick. After the test is completed, the completion time of each line segment can be analyzed to evaluate the subject's performance.

[0089] The visual space perception parameter acquisition module 30 is used to obtain the target unilateral visual space perception parameter according to the line deletion parameter and the line division parameter.

[0090] The visual space perception parameter acquisition module 30 is further used to normalize the line deletion parameter and the line equal division parameter to obtain a normalized deletion parameter and a normalized line equal division parameter;

[0091] The visual space perception parameter acquisition module 30 is further used to perform sample normal distribution processing on the normalized deletion parameter and the normalized line division parameter to obtain the target visual space perception parameter.

[0092] In the specific implementation, three tests are taken and the average score is calculated. The correct score and the variance (SD value) of the healthy subjects are used as reference values, and 2-score normalization is performed to obtain the target unilateral visual space perception parameters. Assuming that the average correct score of the healthy subjects in this evaluation scheme is A, and the average correct score of the subjects is B, the calculation formula is B / A*100%.

[0093] On the basis of the normalized percentage system, a score below the 95% confidence level (i.e., a score below 95%) indicates mild unilateral spatial neglect. A score below the 68% confidence level (i.e., a score below 68%) indicates moderate unilateral spatial neglect. A score below the 34.13% confidence level (i.e., a score below 35%) indicates severe unilateral spatial neglect.

[0094] Among them, the above distinction calculation is obtained based on the sample normal distribution.

[0095] It should be noted that the average score of three or more tests was calculated to reduce the impact of random errors and improve the reliability of the assessment.

[0096] The test results of healthy subjects are used to determine the correct score and the variance of the score (SD value). These reference values ​​are the basis for subsequent evaluation and are used to compare the test results of the subjects with those of the normal population.

[0097] Score normalization processing uses the data of healthy test subjects to perform normalization processing and converts the test scores into standard scores (i.e., normalization deletion parameters and normalization line equalization parameters) to ensure the consistency and comparability of the evaluation results.

[0098] Confidence level assessment is to map the test results to a percentage system based on standard scores to determine the individual's unilateral visual-spatial perception parameters. By dividing them into different confidence levels, a clear grading standard is provided for the severity of unilateral spatial neglect.

[0099] The use of normal sample distribution ensures the accuracy and validity of statistical analysis.

[0100] The present embodiment provides a unilateral spatial neglect rehabilitation assessment device based on line processing, which includes a line deletion test module, a line equalization test module, and a visual space perception parameter acquisition module; the line deletion test module is used to perform a line deletion test, and obtain a line deletion parameter according to the eye ray and the hand ray in the line deletion test; the line equalization test module is used to perform a line equalization test, and obtain a line equalization parameter according to the eye ray and the hand ray in the line equalization test; the visual space perception parameter acquisition module is used to obtain a target visual space perception parameter according to the line deletion parameter and the line equalization parameter. The device combines the line deletion test and the line equalization test. This method can evaluate the unilateral visual-spatial perception ability of the subject from different angles, improve the comprehensiveness and accuracy of the evaluation, and by recording the eye rays and hand rays during the line deletion test and line division test, the device can capture the distribution of spatial visual-spatial perception ability during visual search and action execution. The device can convert the test results into specific parameters (line deletion parameters and line division parameters), which can quantify the degree of unilateral neglect of the subject and provide more accurate data support for clinicians. By combining the line deletion parameters and line division parameters, the device can calculate the target visual-spatial perception parameters, which helps to identify the specific area and degree of neglect of the subject.

[0101] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can refer to the above introduction, and will not be repeated later. Figure 3 , Figure 4This is a schematic diagram of the module structure of the second embodiment of the unilateral visual space perception parameter acquisition device based on picture description and reading test of the present application, wherein the line deletion test module 10 includes a first display unit 101 and a first mixed reality unit 102;

[0102] The first display unit 101 is used to display a three-dimensional image, wherein the three-dimensional image includes preset lines;

[0103] The first mixed reality unit 102 is used to generate a first adjustment parameter to lock the lines in the three-dimensional image according to the eye ray and / or hand ray in the line deletion test, thereby generating the first adjustment parameter.

[0104] It should be noted that the first display unit 101 may also include a subject interface and a supervisor observation interface, wherein the subject interface displays the subject's gaze point and hand rays to facilitate the subject's interaction; the supervisor observation interface displays the screen displayed by the subject in the first mixed reality unit 102 in real time and synchronously; the program running in the first mixed reality unit 102 is operated by a mouse or keyboard, including pausing the test and returning to the main menu (that is, the interface for selecting the test mode, and returning midway will not save the data); and the parameters obtained from the test of the subject are displayed.

[0105] In the specific implementation, the subject wears a mixed reality device, such as the HoloLens 2 device, and locks the wooden stick based on two interaction methods: eye gaze or system gesture.

[0106] Furthermore, the first mixed reality unit 102 is further used to monitor the locking time of the eye ray and / or hand ray on the line in the line deletion test, and delete the line based on the first adjustment parameter;

[0107] The first mixed reality unit 102 is further used to detect a gesture and delete the line based on the first adjustment parameter;

[0108] The first mixed reality unit 102 is further used to detect voice instructions and delete the line based on the first adjustment parameter.

[0109] In the specific implementation, the subject confirms deletion by voice inputting "delete". When the subject inputs the word "delete" through the microphone, if the system locks the line with gestures or eyes, it will be deleted; after the gesture is locked, a special gesture is used to directly confirm the deletion; the hand line or eyes are locked for more than 4S.

[0110] Furthermore, the line deletion test module 10 further includes a first information recording unit 103 and a first parameter obtaining unit 104;

[0111] The first information recording unit 103 is used to record the number of lines deleted in the first display unit 101;

[0112] The first parameter acquisition unit 104 is used to obtain a first parameter according to the number of lines deleted in the first display unit 101;

[0113] The first parameter acquisition unit 104 is further used to acquire a left line deletion parameter of the three-dimensional image and a right line deletion parameter of the three-dimensional image;

[0114] The first parameter acquisition unit 104 is further configured to obtain a line deletion parameter according to the first parameter, a left line deletion parameter of the 3D image, and a right line deletion parameter of the 3D image.

[0115] It should be noted that the line deletion parameter in front of the three-dimensional image can also be obtained.

[0116] In a specific implementation, the line deletion parameters may include:

[0117] Right item: Get one point for correctly deleting a line.

[0118] Error item: After the test is completed, the number of remaining undeleted lines is greater than the number of bus lines.

[0119] Miss item: This item is counted when deleting using voice. When the microphone inputs "delete", if neither the hand ray nor the eyes lock the line, this item will score one point.

[0120] When using special gestures to delete, if neither the hand ray nor the gaze is locked on the line, one point will be deducted.

[0121] Destra item: After the test, the number of remaining lines in front of and to the right of the subject is divided by 20 and recorded as x / 20.

[0122] Sinistra item: After the test, the number of lines remaining in front of and to the left of the subject is divided by 20 and recorded as x / 20.

[0123] Times item: records the time taken for the test, up to 5 minutes.

[0124] Among them, the first parameter, namely the Destra item, the Sinistra item and the Times item, is comprehensively judged based on the scores of the Error item, the Miss item, the Destra item, the Sinistra item and the Times item to obtain the deletion parameter.

[0125] This embodiment provides a unilateral spatial neglect rehabilitation assessment device based on line processing. The line deletion test can effectively assess an individual's visual spatial perception ability distribution for a certain area in space, especially for the spatial information on the neglected side. By recording the accuracy and completeness of the individual's line deletion in the test, their visual search ability can be quantified, providing data support for assessing the concentration and dispersion of their visual spatial perception ability.

[0126] Based on the first and second embodiments of the present application, in the third embodiment of the present application, the same or similar contents as those of the first and second embodiments can be referred to the above description, and will not be described in detail later. Figure 5 , Figure 5 This is a schematic diagram of the module structure of the second embodiment of the unilateral visual space perception parameter acquisition device based on picture description and reading test of the present application, wherein the line division test module 20 includes a second display unit 201 and a second mixed reality unit 202;

[0127] The second display unit 201 is used to display a three-dimensional image, wherein the three-dimensional image includes a preset wooden stick;

[0128] The second mixed reality unit 202 is used to generate a second adjustment parameter to lock the wooden stick in the three-dimensional image according to the eye ray and / or hand ray in the line bisection test, thereby generating a second adjustment parameter.

[0129] It should be noted that the second display unit 201 may also include a subject interface and a supervisor observation interface, wherein the subject interface displays the subject's gaze point and hand rays to facilitate the subject's interaction; the supervisor observation interface displays the subject's screen displayed in the second mixed reality unit 202 in real time and synchronously; the program running in the second mixed reality unit 202 is operated by a mouse or keyboard, including pausing the test and returning to the main menu (that is, the interface for selecting the test mode, and returning midway will not save the data); and the parameters obtained from the test of the subject are displayed.

[0130] Furthermore, the second mixed reality unit 202 is further used to determine the locking time of the eye ray and / or hand ray on the wooden stick in the line division test, and divide the wooden stick into lines based on the second adjustment parameter;

[0131] The second mixed reality unit 202 is further used to detect gestures and divide the wooden stick into equal parts by lines based on the second adjustment parameter;

[0132] The second mixed reality unit 202 is further used to detect voice commands and divide the wooden stick into equal parts based on the second adjustment parameter.

[0133] In the specific implementation, the subject inputs "equally" through voice to confirm the equal division of the line. When the subject inputs the word "equally" through the microphone, if the system locks the line with gestures or eyes, it will be deleted; after the gesture is locked, a special gesture is used to directly confirm the equal division of the line; the hand ray or eye lock is more than 4S.

[0134] It should be noted that voice commands can be debugged, such as "divide equally" can be changed to "delete".

[0135] Furthermore, the line division test module further includes a second information recording unit 203, a timing unit 204 and a second parameter acquisition unit 205;

[0136] The second information recording unit 203 is used to record the number of equal parts of the wooden stick in the second display unit 201;

[0137] The second information recording unit 203 is further used to record the percentage of the position locked by the eye ray and / or hand ray when each wooden stick is divided into equal parts, which deviates from the middle point of the wooden stick;

[0138] The timing unit 204 is used to record the time it takes for the eye ray to travel from the starting point to the target stick;

[0139] The second parameter acquisition unit 205 is used to obtain the second parameter according to the number of equal parts of the wooden stick in the second display unit and the percentage of deviation from the middle point of the wooden stick;

[0140] The second parameter acquisition unit 205 is further used to obtain a line division parameter according to the number of equal divisions of the wooden stick, the percentage of deviation from the middle point of the wooden stick, the time it takes for the sight ray to travel from the starting point to the target wooden stick, and the second parameter.

[0141] It should be noted that the line division parameters may include:

[0142] The Score item is the second parameter: there are 10 records in total, recording the percentage of the locked position of each stick when it is divided equally by the lines, which deviates from the middle of the stick (only the deviation in the height direction of the stick is considered, not the deviation from the axis). Deviation to the left is a negative number, deviation to the right is a positive number, and no deviation is 0. For example, if the total length of a stick is 50cm, and the locked position when it is divided equally by the lines is 10cm from the left to the right, the score of this stick is: -(25-10) / 25=-60%——(deviation to the left is negative, and the specific value is the length of the deviation from the middle divided by half of the length of the stick)

[0143] It should be understood that if the total length of the stick is 50, when the patient locks the stick and deletes 25 points, the score is 0%, that is, there is no deviation.

[0144] Error item: After the test is finished, the number of sticks that are not divided equally into lines is divided by the total number of sticks.

[0145] Miss item: This item is counted when using voice to divide lines. When the microphone inputs "divide", if neither the hand ray nor the eyes lock the line, this item will get one point.

[0146] When using the special gesture to delete, one point is awarded if neither the hand ray nor the gaze is locked on the line.

[0147] Times item: records the time taken for the test, up to 5 minutes.

[0148] The sticks randomly appear in the left, middle, and right sides of the eyes, and appear 5 times in each position. The midpoint position is determined by tracking the eye movement of the subject, and the deviation percentages of the left, middle, and right sides are calculated respectively, and whether there is unilateral neglect. The deviation percentage is the percentage of the position locked by the eye ray and / or hand ray when each stick is divided equally, which deviates from the midpoint of the stick = (the distance between the "midpoint" marked on each line and the true midpoint / the sum of the total length of all lines) x 100%.

[0149] It should be noted that the timer counts the time it takes for the subject's eyes to move from the starting midpoint to the target line. This indicator is called "reaction time" or "eye saccade latency." This indicator reflects the speed at which an individual responds to visual stimuli and is one of the important parameters for evaluating visual-spatial perception ability.

[0150] In the online division test, when a target line appears on the screen, the subject needs to move his or her gaze from the starting midpoint to the newly appeared target as quickly as possible to divide the line. The timer will record the time from the appearance of the target to the start of eye movement, which is the latency of the eye saccade. The shorter this time is, it usually means that the individual's visual processing speed is faster and the visual space perception ability is more sensitive.

[0151] This embodiment provides a unilateral spatial neglect rehabilitation assessment device based on line processing. The line division test can accurately assess the subject's ability to perceive and orient spatial information. By testing the subject's ability to judge the midpoint of the line, the module can reveal the subject's visual-spatial perception ability distribution of spatial distribution in a visual search task.

[0152] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0153] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0154] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0155] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of a module does not, in some cases, constitute a limitation on the module itself.

[0156] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A unilateral spatial neglect rehabilitation assessment device based on line processing, characterized in that: The unilateral spatial neglect rehabilitation assessment device based on line processing includes a line deletion test module, a line equal division test module and a visual space perception parameter acquisition module; The line-deletion test module is used to perform a line-deletion test and obtain line-deletion parameters according to eye rays and hand rays in the line-deletion test; The line division test module is used to perform a line division test and obtain line division parameters according to eye rays and hand rays in the line division test; The visual space perception parameter acquisition module is used to obtain the target visual space perception parameter according to the line deletion parameter and the line division parameter.

2. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 1, characterized in that: The line-deletion test module is also used to detect eye rays and hand rays; A first adjustment parameter is generated according to the eye ray and the hand ray; Deleting lines according to the first adjustment parameter; Get the line deletion parameters based on the deleted lines.

3. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 2, characterized in that: The deletion test module includes a first display unit and a first mixed reality unit; The first display unit is used to display a three-dimensional image, wherein the three-dimensional image includes preset lines; The first mixed reality unit is used to generate a first adjustment parameter to lock the lines in the three-dimensional image according to the eye ray and / or hand ray in the line deletion test, thereby generating the first adjustment parameter.

4. The unilateral spatial neglect rehabilitation assessment device based on line processing as claimed in claim 3, characterized in that: The first mixed reality unit is further used to monitor the locking time of the eye ray and / or hand ray on the line in the line deletion test, and delete the line based on the first adjustment parameter; The first mixed reality unit is further used to detect a gesture and delete the line based on the first adjustment parameter; The first mixed reality unit is also used to detect voice commands and delete the lines based on the first adjustment parameters.

5. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 2, characterized in that: The line deletion test module also includes a first information recording unit and a first parameter acquisition unit; The first information recording unit is used to record the number of lines deleted in the first display unit; The first parameter acquisition unit is used to obtain a first parameter according to the number of lines deleted in the first display unit; The first parameter acquisition unit is further used to acquire a left line deletion parameter of the three-dimensional image and a right line deletion parameter of the three-dimensional image; The first parameter acquisition unit is further configured to obtain a line deletion parameter according to the first parameter, a left line deletion parameter of the three-dimensional image, and a right line deletion parameter of the three-dimensional image.

6. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 1, characterized in that: The line division test module is also used to detect eye rays and hand rays; A second adjustment parameter is generated according to the eye ray and the hand ray; Determine to divide the line equally according to the second adjustment parameter; The line division parameters are obtained based on the equally divided wooden sticks.

7. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 1, characterized in that: The line division test module includes a second display unit and a second mixed reality unit; The second display unit is used to display a three-dimensional image, wherein the three-dimensional image includes a preset wooden stick; The second mixed reality unit is used to generate a second adjustment parameter to lock the wooden stick in the three-dimensional image according to the eye ray and / or hand ray in the line bisection test, thereby generating a second adjustment parameter.

8. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 7, characterized in that: The second mixed reality unit is further used to determine the locking time of the eye ray and / or hand ray on the wooden stick in the line division test, and divide the wooden stick into lines based on the second adjustment parameter; The second mixed reality unit is further used to detect gestures and divide the wooden stick into equal parts by lines based on the second adjustment parameter; The second mixed reality unit is further used to detect voice commands and divide the wooden stick into equal parts based on the second adjustment parameter.

9. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 7, characterized in that: The line division test module also includes a second information recording unit, a timing unit, and a second parameter acquisition unit; The second information recording unit is used to record the number of equal parts of the wooden stick in the second display unit; The second information recording unit is further used to record the percentage of the position locked by the eye ray and / or hand ray when each wooden stick is divided into equal parts, which deviates from the middle point of the wooden stick; The timing unit is used to record the time it takes for the eye ray to travel from the starting point to the target stick; The second parameter acquisition unit is used to obtain the second parameter according to the number of equal parts of the wooden stick in the second display unit and the percentage of deviation from the middle point of the wooden stick; The second parameter acquisition unit is further used to obtain the line division parameter according to the number of equal divisions of the wooden stick, the percentage of deviation from the middle point of the wooden stick, the time for the sight ray to travel from the starting point to the target wooden stick, and the second parameter.

10. The unilateral spatial neglect rehabilitation assessment device based on line processing according to claim 1, characterized in that: The visual space perception parameter acquisition module is further used to normalize the line deletion parameter and the line equal division parameter to obtain a normalized deletion parameter and a normalized line equal division parameter; The visual space perception parameter acquisition module is also used to perform sample normal distribution processing on the normalized deletion parameter and the normalized line division parameter to obtain the target visual space perception parameter.

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