Vein matching method based on logarithm polar coordinate transformation
A technology of logarithmic polar coordinates and vein matching, applied in instruments, character and pattern recognition, computer components, etc., can solve the problems that recognition results are easily affected by changes in finger placement and individual differences in imaging equipment
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[0056] A vein matching method based on logarithmic polar coordinate transformation. This method first preprocesses the image to obtain the vein line map and single-pixel line map; then delimits the template image and sample image according to the structural characteristics of the finger vein line image Then calculate the similarity measure of the LPT transformation result of the template image and the sample image matching candidate region; finally determine the matching result according to the similarity measure and relative position distribution between regions.
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