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An Improved Approach for Corner Detection

WANG Jian qi, DENG Yan ping, LI Jie gu (Inst. of Image Processing & Pattern Recognition, Shanghai Jiaotong Univ., Shanghai 200030, China)  
An improved algorithm for corner detection is based on the property of corners that the change of image intensity should be high in all direction. Linear interpolation on the side of the square window was introduced to make it convenient to calculate the extremum of the variance of the image intensity without losing the accuracy of the calculation of variance of the image intensity. On the base of the interpolation, this paper also introduced the notion of edge angle, by which it can wipe off some corner candidate that is falsely reported. The experiments show that this algorithm can achieve a better performance.
【CateGory Index】: TN911.73
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