Stereoscopic vision detecting drawing board and manufacturing method thereof

Abstract

The invention discloses a stereoscopic vision detecting drawing board and a manufacturing method thereof. The drawing board adopts the black and white crossed random point view, is arranged on an optical grating board, and comprises a disguising background and an image area, wherein the drawing board is filled up by the disguising background, and disguising pixel random points are arranged in the disguising background; the image area is positioned in the center of the drawing board, and parallax pixel random points are arranged in the image area; the disguising background comprises a normal luminance pixel area and a gradient luminance pixel area; the normal luminance pixel area is positioned in the center of the disguising background, and the gradient luminance pixel area is positioned on the periphery of the disguising background; the luminance of the arranged disguising pixel random points is gradually darkened in a centrifugal manner; the area of the normal luminance pixel area is larger than that of the image area. The stereoscopic vision detecting drawing board provided by the invention is designed by adopting a modern computer mapping technology, selects a transparent digitization lenticular grating plate to print, realizes the large vision field of stereoscopic vision detecting, has low noise and realizes non-glasses vision detection.

Description

technical field [0001] The invention relates to a device for medical inspection of human eyes, and an inspection device for testing binocular stereo vision. The present invention also relates to a manufacturing method of the medical examination instrument. Background technique [0002] Stereo vision, also known as depth vision, three-dimensional vision, and spatial vision, is one of the standards for ophthalmology visual function diagnosis and curative effect evaluation system. Important items for selection. Stereo vision inspection can be divided into qualitative inspection and quantitative inspection. Among them, the qualitative examination is to determine whether the human eyes have stereoscopic perception function, and the quantitative examination is to determine the stereoscopic acuity of the person. Stereoscopic vision is based on binocular disparity. Binocular parallax refers to the slight horizontal disparity formed by the object images on the retinas of the two ...

AI Technical Summary

Problems solved by technology

[0008] (1) There is only one stereogram composed of random points containing different parallax graphics information, and the plane graphics that produce three-dimensional stereo perception have a small area and few parallax pixels, while the camouflage background located on the periphery of the plane graphics has a relatively large area and many camouflage pixels, resulting in stereoscopic images. The disparity information is weak and the noise is high, so it is only suitable for stereo vision blind screening of children, and the probability of false positive is high

[0009] (2) A stereoscopic image synthesized by random points can only reach a maximum stereoscopic accuracy of 200 seconds, while the stereoscopic acuity of a normal person is 60 seconds, so it is impossible to accurately and quantitatively detect the stereoscopic acuity

Due to the limitations of technology and materials, the accuracy and clarity of random point synthetic stereograms are relatively low

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