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Depth measuring method and system based on shallow depth of field imaging

A technology of depth measurement and imaging, applied in the field of detection, can solve the problem that the automatic detection device cannot realize the function of depth measurement, etc.

Active Publication Date: 2016-02-03
BEIJING LUSTER LIGHTTECH
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Problems solved by technology

[0005] The present invention provides a depth measurement method and system based on shallow depth of field imaging to solve the problem that the automatic detection device in the prior art cannot realize the depth measurement function

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  • Depth measuring method and system based on shallow depth of field imaging
  • Depth measuring method and system based on shallow depth of field imaging
  • Depth measuring method and system based on shallow depth of field imaging

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[0032] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of means consistent with aspects of the invention as recited in the appended claims.

[0033] Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0034] Please see figure 1 , shows a method flowchart of a depth measurement method based on shallow depth-of-field imaging provided in an embodiment of the present invention.

[00...

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Abstract

The invention provides a depth measuring method based on shallow depth of field imaging and a corresponding system. The depth measuring method based on the shallow depth of field imaging includes following steps: obtaining the physical location of an optimal focusing image in a liquid crystal layer; obtaining the physical location of a defect optimal focusing image; and determining a physical layer which a defect belongs to according to the difference of the physical location of the optimal focusing image in the liquid crystal layer and the physical location of the defect optimum focusing image. According to the method and the system, the physical locations of the optimal focusing image in the liquid crystal layer and the defect optimum focusing image are respectively obtained, the optimum focusing image in the liquid crystal layer is regarded as the reference plane, the physical layer which the defect belongs to is determined via the calculation of the difference of the physical location of the optimal focusing image in the liquid crystal layer and the physical location of the defect optimum focusing image, the defect is automatically detected, and the physical layer which the defect belongs to can be automatically located according to the physical position of the optimal focusing image in the liquid crystal layer so that the function of depth measurement of an automatic detection device is realized, and the problem of failure of the realization of the depth measuring function of the automatic detection device in the prior art can be solved.

Description

technical field [0001] The invention relates to a detection method and system, in particular to a depth measurement method and system based on shallow depth of field imaging. Background technique [0002] The typical composition of LCD (Liquid Crystal Display) liquid crystal screen is TP (Touch Panel, touch screen) glass, upper polarizer, color filter, liquid crystal layer, TFT (Thin Film Transistor, thin film transistor) substrate, lower polarizer and backlight from top to bottom. The basic principle of LCD liquid crystal display is to change the arrangement of molecules inside the liquid crystal material through voltage, so as to achieve the purpose of shading and light transmission to display images of different shades and well-arranged, and only need to add a The filter layer of three primary colors can realize the display of color images. At present, LCD liquid crystal screens have become mainstream products in domestic and foreign markets due to their advantages of en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/22G01N21/95
Inventor 马增婷姚毅周钟海
Owner BEIJING LUSTER LIGHTTECH
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