In order to solve the undetected and error detected problem in Harris corner detection method
an improved Harris corner detection method based on edge is put forward. The improved method firstly extracts edge of input image with second order differential operator and then detects the corners in the edge image with Harris corner detection method. Finally the positions of the detected corners are recorded and marked in the original image. Experimental results show that the improved corner detection method which extracts edge with second order differential operator is able to detect more corners more accurately than that with gradient.
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