Stereo vision inspection method and device using symmetrical adjustable backlight structure

Abstract

A stereoscopic inspection device adopting a symmetrical adjustable backlight structure, including a symmetrical adjustable backlight device, a pupil position tracking module, a synchronous signal extraction module, a signal processing module, and an image display screen; the symmetrical adjustable backlight device includes a symmetrical adjustable optical component , addressable light source assembly; wherein, the symmetrically adjustable optical assembly includes a light guide module and a symmetrically adjustable imaging module, the light guide module includes: a condenser lens, a light guide device and a triangular prism, and the symmetrically adjustable imaging module ( M) includes: a lens, a lens switching device, a refracting mirror, a beam splitter and a refracting mirror; the signal processing module controls the addressable light source components in the adjustable backlight structure according to the received pupil position information and video synchronization signal. While displaying the left image, the signal processing module lights up the corresponding light-emitting unit according to the position information of the pupil of the left eye to realize the convergence of light at the pupil of the left eye; while displaying the right image, the signal processing module The corresponding light-emitting unit lights up to realize the convergence of light at the pupil of the right eye.

Description

1. Technical field [0001] The invention relates to the technical field of information display, in particular to a stereoscopic inspection device using a symmetrical adjustable backlight structure. 2. Background technology [0002] Stereopia is the lack of stereo vision. The three-dimensional sense of a person is established in this way: both eyes look at an object at the same time, and the eyes of both eyes cross at one point, called the fixation point, and the light points reflected from the fixation point back to the retina correspond to each other. Compose a complete image of an object. Not only can you see this point clearly, but you can also distinguish the distance, depth, convexity, etc. between this point and the surrounding objects. The image formed in this way is a three-dimensional image. This kind of vision is called stereoscopic vision. Once people's binocular vision function is impaired and lacks stereo vision, the depth and distance of the scenery in the ext...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a multi-distance viewing stereo vision inspection device using a symmetrical adjustable backlight structure in order to solve the problems of single detection samples, limited detection distance, and monocular clues in the stereo blind detection process.

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