Vein recognition method base on angle matrix of feature point

In the course of capturing vein images from image capturing devices, displacement deviation, angle deviation and scale changes are inherent. In order to overcome these problems arosed by above factors, an approach to vein image recognition using the angle matrixes of feature points is presented in this paper. In the phase of feature extraction, all feature points and multisection points between them are obtained first, then the angle matrix of the feature points are calculated and arranged to form an angle matrix sequence. In the matching phase, the type and number of the feature points were first compared, if they mach, the angle matrix sequence was compared. Experimental results show the method is feasible.