Abstract
As a result of the impact of external factors,corners detected by corner detection algorithm may be offset.Based on the analysis of this phenomenon,this paper proposed a new algorithm for corner relocation.Firstly,through calculating the second-order template value for every corner,the fuzzy corner relocation was carried out;secondly,the density gradient direction of pixel was introduced.Comparing the density gradient directions of the corners and the neighborhood pixels of the corners,the wrong corners were determined precisely and all candidates were found;finally,according to the relationship between the corner and the candidate pixels,new corner was found.Experimental results show that the algorithm can accurately relocate the wrong corners.
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