Printed circuit board surface defect positioning and identifying method
A printed circuit board and identification method technology, which is applied in image data processing, image enhancement, instruments, etc., can solve the problems of detection accuracy and detection speed that need to be further improved
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[0062] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0063] figure 1 It is a flow chart of a method for locating and identifying surface defects of a printed circuit board according to an embodiment of the present invention. Such as figure 1 As shown, the method sequentially includes four processes of image acquisition, image registration, defect location and defect recognition, specifically:
[0064] (1) Image collection, collecting the image I(x,y) of the printed circuit board to be tested and the image T(x,y) of the template;
[0065] (2) Image registration, accurately register the image to be tested I(x,y) and the template image T(x,y) through two convolutional neural networks, and obtain the image to be tested after registration Preferabl...
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