关键词: 生物特征识别, 步态识别, 特征融合, 傅立叶描述子

Abstract: Walking contains body shape and dynamic information，most gait recognition algorithms are based on single one，and can’t get satisfied recognition rate.According to the idea of feature fusion，a gait recognition algorithm based on the fusion of body contour and angles of lower limbs is proposed.Body contour is described by using Fourier-based descriptors.Different from the model-based methods for getting dynamic information，the knowledge in body anatomy is used for getting the angles of lower limbs，so computational cost is low.Weighted fusion method is used for realizing features fusion.Experimental results demonstrate that the performance of proposed algorithm is much better than those based on single feature.

Key words: biometrics, gait recognition, feature fusion, Fourier-based descriptors