Optical detection method and system
An optical detection and to-be-detected technology, applied in the field of optical detection, can solve the problems of single optical detection form, cannot guarantee high quality, and quickly obtain detection results, and achieve the effect of rapid detection
Inactive Publication Date: 2017-02-22
BOE TECH GRP CO LTD +1
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[0005] The purpose of the technical solution of the present invention is to provide an optical detection method and an optical detection system to solve the problem that the form of optical detection in the prior art is relatively single and cannot guarantee high-quality and fast detection results
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[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0060] refer to figure 1 As shown, the optical detection method described in the first embodiment of the present invention includes the steps of:
[0061] S110, comparing the detection image of the product to be detected with the standard sample image corresponding to the product to be detected to obtain a comparison result;
[0062] Specifically, in this step, a one-to-one comparison between a unit range image in the detection image and the corresponding image in...
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The invention provides an optical detection method and system. The optical detection method includes the steps that a detection image of a to-be-detected product is compared with a standard sample image corresponding to the to-be-detected product, the compared result is obtained; when the compared result indicates that the difference between the detection image and the standard sample image is larger than a preset threshold value, the detection result when the detection image is abnormal is directly obtained; when the compared result indicates that the difference between the detection image and the standard sample image is smaller than or equal to the preset threshold value, whether a detection area with the abnormal preset display parameters exists or not is detected in the detection image; when the detection area with the abnormal preset display parameters exists in the detection image, the detection result when the detection image is abnormal is obtained; otherwise, the detection result when the detection image is normal is obtained. By means of the optical detection method and system, the problems that an optical detection mode in the prior art is single, it cannot be guaranteed that the detection result is excellently and rapidly obtained can be solved.
Description
technical field [0001] The invention relates to optical detection technology, in particular to an optical detection method and an optical detection system. Background technique [0002] Automatic Optical Inspection (AOI, Automatic Optic Inspection) is a recently emerging testing technology. Its function is to automatically detect common defects in production processes such as products obtained after welding based on optical principles. [0003] During automatic detection, the detection equipment automatically scans the product to be detected through the camera, collects images, and after image processing, checks out the defects on the product to be detected, and displays or marks the defects through the display or automatic signs for maintenance personnel to carry out Trimming. [0004] However, when the existing automatic optical inspection equipment is inspected, no matter what the state of the product to be inspected is, the detection method is sample comparison, and the...
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IPC IPC(8): G01N21/88
CPCG01N21/8806
Inventor高鸿飞高琪陈广飞马纪艳
OwnerBOE TECH GRP CO LTD