Picture compression method in AOI (Automatic Optic Inspection) detection system and display panel defect detection system
A technology for displaying panel defects and compression methods, applied in image analysis, image communication, image data processing, etc., can solve problems such as resource consumption, image lossy compression, image data loss, etc., to reduce information volume, improve compression rate, The effect of reducing compression time
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[0023] The present invention will be further described in detail below in conjunction with specific embodiments:
[0024] For display panel AOI defect detection, it is generally necessary to take multiple display panel defect detection images, such as figure 2 As shown, in the process of taking each display panel defect detection image, the relative position of the camera and the display panel does not change. Therefore, the difference between the different display panel defect detection images taken by each camera is relatively small. These differences are often caused by the defects of the display panel itself. Using the pure white detection image as the background, and subtracting the pure white image from the rest of the image, a large amount of repetitive information can be removed and key effective information is retained.
[0025] Based on the same camera, images taken by cameras under different display panel defect detection images have very similar characteristics. The pre...
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