关键词: 人脸识别, 小波包, 矩特性, LDB

Abstract: Face recognition is an important embranchment of pattern recognition problem.It has been widely applied and highly valued by academic field,enterprise field,government and the military day by day.There are two targets in face recognition： enhance recognition correctness and lower training and recognition time.In this paper,the traditional LDB method is improved to be a new face recognition method.The basis’ of subbands in Wavelet packet decomposition are choosen based on difference separability.The first and second origin moments of chosen coefficients in chosen subbands are used as the feature of faces and the classify recognition distance is defined correspondingly.This new method reduces the calculation complexity,lowers the training and recognition time and achieves real time recognition,while the useful face features are better described for classification and recognition correctness are enchanced.

Key words: face recognition, wavelet packet, moment property, LDB