Automatic focusing liquid crystal module surround three-dimensional detection optical method

Abstract

The invention provides an automatic focusing liquid crystal module surround three-dimensional detection optical method. The method comprises the following steps of: collecting image information according to an imaging module; performing three-dimensional imaging according to the acquired image information, and forming three-dimensional image information; carrying out image brightness matching on the three-dimensional image information; comparing the matched three-dimensional image information with pre-stored information, and obtaining a comparison result; and judging the defect position of the three-dimensional image information according to the comparison result, and recording and feeding back the defect position to the terminal. Through automatic focusing of the imaging module, the technical problem that one part is clear and the other part is blurred in multi-level photographing is solved, and it is guaranteed that all parts of the collected whole image are clear; and the image content in the collected plane image is presented in a three-dimensional mode, and the real form of the image content is restored. The image content is analyzed from multiple angles and multiple scenes. Therefore, the problems that specific defects cannot be detected and the false detection rate is high are solved.

Description

technical field [0001] The invention relates to the technical field of optical fixed focus, in particular to an optical method for three-dimensional stereoscopic detection of an auto-focus liquid crystal module. Background technique [0002] At present, the specific detection area of ​​the liquid crystal module is multi-layered. The traditional method is to collect images by fixed focus, resulting in a part of the collected image being clear and part of it blurred; at the same time, the traditional method of collecting images The product is photographed and collected by an area array camera or a line scan camera, and the collected images are all flat images, which makes it impossible to detect defects that need to be detected under a three-dimensional effect. [0003] Therefore, there is a lack of a method capable of collecting defects in planar images. Contents of the invention [0004] The present invention provides an auto-focusing liquid crystal module onlooker three-...

AI Technical Summary

Problems solved by technology

[0002] At present, the specific detection area of ​​the liquid crystal module is multi-layered. The traditional method is to collect images by fixed focus, resulting in a part of the collected image being clear and part of it blurred; at the same time, the traditional method of collecting images The product is photographed and collected by an area array camera or a line scan camera, and the collected images are all flat images, resulting in the failure to detect defects that need to be detected under a three-dimensional effect

[0003] Therefore, lack a kind of method that can collect the defect of planar image

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