Kinect based interactive visual target display system and optimization method

Abstract

The invention discloses a Kinect based interactive visual target display system and optimization method, relating to visual target display systems and methods. By adopting the system and the optimization method, the sight distance between a subject and a visual target display unit can be accurately measured, and visual target display is decided according to the distance between the subject and the visual target display unit. The system and the optimization method have the beneficial effects that visual targets corresponding to the sight distances between the subject and the visual target display unit are further displayed according to the difference of the sight distances, so that a visual acuity chart is no longer single; a Kinect judges whether the choices made by the subject are correct via an own skeleton tracking system, thus truly achieving man-machine interaction and reaching efficient and accurate standards; during visual target testing at the same level, the visual targets at the same level are used for testing at least twice, and at most four times and display of the visual target directions each time is random and unrepeatable, thus reducing the chance when the subject distinguishes the visual target directions; and during conversion testing of visual target levels, the stop standards of visual target display are set, and final visual targets are displayed.

Description

technical field [0001] The invention relates to an optotype display system and an optotype display method, in particular to a Kinect-based interactive optotype display system and an optotype display optimization method. Background technique [0002] With the continuous advancement of the information age, the implementation of vision testing methods is also constantly improving, gradually evolving from paper-based vision chart testing to today's intelligent vision testing combined with hardware and software. The main display methods of the visual mark are: [0003] 1) Display method of paper visual mark; [0004] 2) Based on the combination of the upper computer and the lower computer, the display method of displaying the visual target on a special display screen; [0005] 3) Replace the visual mark on the display screen through the clock signal in the control machine; [0006] 4) The staff can change the display of the optotype by pressing keys, so as to prevent the subje...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems existing in the prior art, the present invention provides a method that can accurately measure the sight distance between the subject and the visual mark display unit, and determine the visual distance by the distance between the test subject and the visual mark display unit. The Kinect-based interactive optotype display system and optotype display optimization method can solve the problem that the traditional paper-based optotype display is easy for the testee to remember the direction of each optotype

In addition, the method can also accurately obtain the input signal of the testee, realize the replacement of the displayed visual target according to the actual input situation of the testee, and can solve the problem that the testee cannot accurately judge the identification of the current visual target in the prior art. The problem of blindly changing sight targets

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