CN112617740A

CN112617740A - Vision detection method, system and device

Info

Publication number: CN112617740A
Application number: CN202011590190.9A
Authority: CN
Inventors: 王赵婉
Original assignee: Zhejiang Tonglu Eshan Industry General Co
Current assignee: Zhejiang Tonglu Eshan Industry General Co
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-09

Abstract

The application relates to a vision detection method, a system and a device, which comprises the following steps: acquiring a prestored electronic visual chart, and respectively displaying the electronic visual chart in a terminal and a display screen; acquiring a visual target selected by a detector from an electronic visual chart of a terminal, and marking the visual target in a display screen; acquiring a response result of a tester to a marked sighting mark in a display screen; judging whether the answer result of the tester is the same as the selected visual target or not; and carrying out the next round of detection according to a detection mechanism until the detection is finished, and outputting a detection result. The invention can improve the vision testing efficiency and reduce the labor intensity of operators; the equipment automatically judges the test result, improves the accuracy and avoids manual judgment errors.

Description

Vision detection method, system and device

Technical Field

The present application relates to the field of vision testing technologies, and in particular, to a method, a system, and a device for vision testing.

Background

In the vision test process, a doctor or a test person is required to stand on one side of the visual chart, indicate the visual targets in the visual chart by using indicators such as a pointer, and then twist the head to observe the response gestures or response languages of the test person. In the test process, the doctor needs to continuously turn back to observe the direction of the visual target on the current visual chart and the identification condition of the visual target by the current testee, and the visual target are compared with each other and then the next test is carried out.

The testing process depends on doctors or detection personnel, and in the scene that the tested population is concentrated (such as physical examination), the labor intensity of the doctors is too high, the judgment is easy to be wrong, and the efficiency is not high.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a vision detection method, a system and a device.

The invention provides a vision detection method, which is characterized by comprising the following steps:

s1, acquiring a pre-stored electronic visual chart, and respectively displaying the electronic visual chart on a terminal and a display screen;

s2, acquiring a visual target selected by a detector from the electronic visual chart of the terminal, and marking the visual target in the display screen;

s3, acquiring the response result of the tester to the marked sighting target in the display screen;

s4, judging whether the answer result of the tester is the same as the selected sighting mark;

and S5, carrying out the next round of detection according to a detection mechanism until the detection is finished, and outputting a detection result.

The invention does not need a tester to repeatedly point to the visual target on the visual chart by using a tool and also does not need to manually judge the right and wrong answer results of the tester, can directly provide the visual target to be tested through the system, and automatically identifies the answer result of the tester, thereby improving the detection efficiency and accuracy and lightening the labor intensity of the tester.

Although the invention is also manual detection, the detector only needs to operate the terminal screen to select the visual target to be detected, and does not need to observe the visual chart display screen and the response result of the tester, thereby greatly reducing the labor intensity of the detector.

Preferably, in step S2, the mark is formed by displaying a dot below the selected mark. The round point-shaped mark is more prominent, is similar to the end part of a pointer during manual detection, is easier to identify, and a tester can more easily see the visual target to be detected.

Preferably, in step S5, the detection mechanism is:

when the optotype in a certain row is selected for the first time, different optotypes are selected again in the same row regardless of the result;

when the optotypes in a certain row are selected twice,

if the two results are correct, skipping to the next line, if the result is the last line, ending the detection, and outputting the vision index of the last line as a detection result;

if the results of the two times are wrong, if the previous line is not detected, skipping to the previous line for continuous detection, and if the previous line is detected, outputting the vision index of the previous line as a detection result;

if the results of the two times are wrong one to one, a third test is carried out, if the result of the third test is correct, the test is continued according to the execution logic with the correct results of the two times, and if the result of the third test is wrong, the test is continued according to the execution logic with the wrong results of the two times.

The detection mode can detect the eyesight of a tester quickly with less detection times, and improves the detection efficiency.

Preferably, after the first detection of the optotypes in a certain row, if the total number of the optotypes in the currently detected row is less than 3, the detection is performed only once, if the detection is correct, the next row is skipped, and if the detection is wrong, the previous row is skipped.

Because the visual targets in the first rows of the visual chart are fewer, the detection times can be reduced.

Preferably, when the test of one tester is completed, the electronic visual chart in the display screen is switched before the test of the next tester is completed.

After switching, the visual targets on the visual chart are different, so that cheating of a subsequent tester according to the test condition of a previous tester is avoided.

Preferably, in step S3, the tester sends the reply result through the handheld controller.

Although the system also has a voice recognition function, a tester can automatically recognize the voice by speaking up, down, left and right; however, some testers may not have the correct accent, or may missay the accent, which may cause recognition errors and inaccurate results. Therefore, the controller is adopted, the upper, lower, left and right results are directly input through the buttons on the controller, the system can directly identify after acquiring the signals, and the accuracy of the system for identifying the answer results of testers is improved.

Preferably, before the detection is started, the distance information between the display screen and the tester is acquired, and when the distance information is greater than a distance threshold value, the detection is started again. The tester can perform detection within a standard distance range.

The invention also provides a vision detection system, which is characterized by comprising:

the storage module is used for storing the electronic visual chart and the detection data;

the processing module is used for selecting the electronic visual chart, selecting the visual target to be detected, judging the size of the acquired distance information and the distance threshold value and executing a detection mechanism;

the display screen is used for displaying the electronic visual chart and marking and displaying the selected visual target;

and the terminal is used for displaying the electronic visual chart and allowing the inspector to select the visual target.

Preferably, a controller is further included for inputting the result of the response of the optotype.

The invention also provides a vision detection device which is characterized by comprising

A memory to store instructions; and

a processor for retrieving and executing the instructions from the memory to perform the vision testing method of any one of claims 1-7.

In conclusion, the invention has the following beneficial effects: the vision testing efficiency is improved, and the labor intensity of an operator is reduced; the equipment automatically judges the test result, improves the accuracy and avoids manual judgment errors.

Drawings

FIG. 1 is a schematic flow diagram of the present invention.

Detailed Description

The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.

Example 1:

referring to fig. 1, the present embodiment discloses a vision testing method, which includes the following steps:

and S1, acquiring a pre-stored electronic visual chart, and respectively displaying the electronic visual chart in the terminal and the display screen.

Specifically, the system can prestore a plurality of different electronic visual charts, a detector randomly selects one electronic visual chart from the terminal during detection, and the selected electronic visual chart is displayed on the display screen for testing.

And S2, acquiring a visual target selected by the examiner from the electronic visual chart of the terminal, and marking the visual target in the display screen.

Specifically, the terminal can be a computer, a tablet, a mobile phone and the like, and a detector clicks a visual target from a terminal screen to be used as a target for the first test; the system synchronously displays the selection in the display screen and displays the detection mark below the visual target to be detected.

The way of marking is to show a dot under the selected mark. The round point-shaped mark is more prominent, is similar to the end part of a pointer during manual detection, is easier to identify, and a tester can more easily see the visual target to be detected.

In addition, if the test is not the first time the test is performed, such as the previous year when vision has been detected by the system, the results of the test are stored in the system; when the system tests again in the current year, the previous detection result can be called by the system and displayed to the detector, and the detector can select the first detected target in the row where the previous detection result is located; for example, the last year detection result is 1.0, and after the system is called, the sighting target is directly selected from the row 1.0 in the current year for detection, so that the detection efficiency can be greatly improved.

And S3, acquiring the response result of the tester to the marked sighting target in the display screen.

Specifically, the tester can reply by voice, and the system acquires and recognizes the voice signal and reads keywords such as "up", "down", "left", and "right".

The tester can also reply by waving hands, and the system shoots actions through the camera and analyzes through a deep learning algorithm to obtain a reply result.

Alternatively, the tester may send the response via a hand-held controller.

Although the system also has a voice recognition function, a tester can automatically recognize the voice by speaking up, down, left and right; however, some testers may not have the correct accent, or may missay the accent, which may cause recognition errors and inaccurate results. Therefore, the controller is adopted, the up-down, left-right and left-right results are directly input through the up-down, left-right buttons on the controller, the system can directly identify the signals, and the accuracy of the answer results of the system identification tester is improved. This is also the most preferred approach.

Of course, the answer of the tester can be obtained manually by the tester, and the answer result can be input into the terminal.

S4, judging whether the answer result of the tester is the same as the selected visual target.

Specifically, the system compares the identified reply result with the visual target to be detected to obtain a correct or incorrect conclusion.

Meanwhile, the test right or wrong can be clicked at the terminal through manual operation of a detector.

The detector can adopt a manual identification mode and also can adopt a system automatic identification mode, so that the detection method is more convenient and has higher degree of freedom.

Specifically, the detection mechanism is as follows:

when the optotypes in a certain row are selected twice,

In addition, after the first detection of the sighting marks in a certain line, if the total number of the sighting marks in the current detection line is less than 3, the detection is only carried out once, if the detection is correct, the next line is jumped, and if the detection is wrong, the previous line is jumped. Because the visual targets in the first rows of the visual chart are fewer, the detection times can be reduced.

In this embodiment, before the detection is started, the distance information between the display screen and the tester may be acquired first, and when the distance information is greater than the distance threshold, the detection is started again. The tester can perform detection within a standard distance range.

Specifically, a distance sensor may be provided in a handheld controller of a tester to detect a distance between the tester and the screen, and send distance information to the system, and the system compares the distance information with a distance threshold value and then starts detection in accordance with the condition.

Of course, the tester can also manually judge whether the tester is at the proper distance.

It should be noted that when the test of one tester is completed, the electronic eye chart in the display screen is switched before the next tester tests.

Example 2:

the present embodiment provides a vision inspection system, including:

the terminal is used for displaying the electronic visual chart and allowing a detector to select a visual target;

and the distance sensor is used for acquiring the distance information between the display screen and the quality inspection of the tester.

In one example, the units in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

As another example, when a unit in a device may be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of invoking programs. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/procedures/concepts may be named in the present application, it is to be understood that these specific names do not constitute limitations on related objects, and the named names may vary according to circumstances, contexts, or usage habits, and the understanding of the technical meaning of the technical terms in the present application should be mainly determined by the functions and technical effects embodied/performed in the technical solutions.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It should also be understood that, in various embodiments of the present application, first, second, etc. are used merely to indicate that a plurality of objects are different. For example, the first time window and the second time window are merely to show different time windows. And should not have any influence on the time window itself, and the above-mentioned first, second, etc. should not impose any limitation on the embodiments of the present application.

It is also to be understood that the terminology and/or the description of the various embodiments herein is consistent and mutually inconsistent if no specific statement or logic conflicts exists, and that the technical features of the various embodiments may be combined to form new embodiments based on their inherent logical relationships.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a computer-readable storage medium, which includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned computer-readable storage media comprise: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

A memory to store instructions; and

The invention also provides a computer program product comprising instructions that, when executed, cause the reactive compensation intelligent monitoring system to perform operations of the reactive compensation intelligent monitoring system corresponding to the above method.

Embodiments of the present application further provide a chip system, which includes a processor, and is configured to implement the functions referred to in the foregoing, for example, to generate, receive, transmit, or process data and/or information referred to in the foregoing methods.

The chip system may be formed by a chip, or may include a chip and other discrete devices.

The processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the method for transmitting feedback information.

In one possible design, the system-on-chip further includes a memory for storing necessary program instructions and data. The processor and the memory may be decoupled, respectively disposed on different devices, and connected in a wired or wireless manner to support the chip system to implement various functions in the above embodiments. Alternatively, the processor and the memory may be coupled to the same device.

Optionally, the computer instructions are stored in a memory.

Alternatively, the memory is a storage unit in the chip, such as a register, a cache, and the like, and the memory may also be a storage unit outside the chip in the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, and the like.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.

The non-volatile memory may be ROM, Programmable Read Only Memory (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), or flash memory.

Volatile memory can be RAM, which acts as external cache memory. There are many different types of RAM, such as Static Random Access Memory (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synclink DRAM (SLDRAM), and direct memory bus RAM.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. a vision detection method, is characterized in that, comprises the following steps:

S1. Obtain a pre-stored electronic vision chart, and display the electronic vision chart on the terminal and the display screen respectively;

S2, acquiring an optotype selected by the examiner from the electronic vision chart of the terminal, and marking the optotype on the display screen;

S3. Obtain the tester's response to the marked optotype in the display screen;

S4. Determine whether the tester's answer result is the same as the selected optotype;

S5. Perform the next round of detection according to the detection mechanism, until the detection ends, and output the detection result.

2 . The vision detection method according to claim 1 , wherein, in the step S2 , the marking method is to display a dot below the selected marking. 3 .

3. A kind of vision detection method according to claim 1, is characterized in that, in described step S5, the detection mechanism is:

When an optotype in a row is selected for the first time, no matter what the result is, select a different optotype in the same row again;

When an optotype in a row is selected twice,

If both results are correct, jump to the next line, if it is the last line, the detection is over, and output the visual acuity index of the last line as the detection result;

If both results are wrong, if the previous line is not detected, skip to the previous line to continue the detection, if the previous line has been detected, output the visual acuity index of the previous line as the detection result;

If the two results are one-to-one wrong, the third test will be performed. If the third result is correct, the test will continue according to the execution logic of the two results. If the third result is wrong, the execution will be carried out according to the two wrong results. The logic continues to detect.

4. a kind of visual acuity detection method according to claim 3 is characterized in that, after the optotype in a certain row is detected for the first time, if the total number of optotypes in the current detection line is less than 3, then only one detection is performed, if correct Then jump to the next line, if wrong, jump to the previous line.

5 . The visual acuity detection method according to claim 1 , wherein when the detection of one tester is completed, the electronic vision chart in the display screen is switched before the detection of the next tester. 6 .

6 . The vision detection method according to claim 1 , wherein in the step S3 , the tester sends a response result through a handheld controller. 7 .

7 . The vision detection method according to claim 6 , wherein, before starting the detection, the distance information between the display screen and the tester is obtained, and when the distance information is greater than the distance threshold, the detection is started again. 8 .

8. A vision detection system, comprising:

A storage module for storing electronic vision charts and testing data;

The processing module is used for selecting the electronic vision chart, selecting the optotype to be detected, judging the obtained distance information and the size of the distance threshold, and executing the detection mechanism;

The display screen is used to display the electronic vision chart and mark and display the selected optotype;

The terminal is used to display the electronic vision chart and allow the examiner to select the optotype.

9 . The vision detection system according to claim 8 , further comprising a controller for inputting a response result of the optotype. 10 .

10. A vision detection device, characterized in that, comprising:

memory for storing instructions; and

The processor is configured to call and execute the instruction from the memory to execute the vision detection method according to any one of claims 1 to 7.