[1] QI Meibin, WANG Qian, JIANG Jianguo. Research on Nonstandard View Gait Identification [J]. Chinese Journal of Scientific Instrument, 2008, 29(10)：2058-2061.

[2] LI Yi, MING Dong, WANG Lu, et al. Gait and Face Profile Fusion Based Human Identification at a Distance in Video [J]. Chinese Journal of Scientific Instrument, 2011, 32(2)：264-270.

[3] ZHANG Yuanyuan, WU Xiaojuan, LI Xiuyuan, et al. Viewpoint in Dependent Gait Recognition with Parallel Line Constraints [J]. CAAI Transactions on Intelligent Systems, 2009, 4(3)：264-269.

[4] PENG Z H, XU X J, YANG J. A Multi-view Method for Gait Recognition Based on the Length of Body’s Parts [J]. Acta Automatica Sinica(S0002-6812), 2007, 33(2)：210-213.

[6] WU Dapeng, CHENG Weiping, YU Shenglin. Camshift Object Tracking Algorithm Based on Inter-frame Difference and Motion Prediction [J]. Opto-Electronic Engineering, 2010, 37(1)：55-60.

[7] Collins R, Gross R, Shi J. Silhouette-based Human Identification from Body Shape and Gait [C]// Proceedings of Fifth IEEE International Conference on Automatic Face Gerture Recoginition, Washington, DC, May 21-22, 2002：366-371.

[8] KALE A, SUNDARESAN A, RAJAGOPALAN A N, et al. Identification of Human Using Gait [J]. IEEE Transactions on Image Processing (S0005-6514), 2004, 13(9)：1163-1173.

[9] CULTER R, DAVIS L. Robust Real-time Periodic Motion Detection, Analysis, and Applications [J]. IEEE Transactions Pattern Analysis and Machine Intelligence (S0014-5825), 2000, 22(8)：778-796.

[10] XU Xueqiang, WANG Bo, HE Peng. United Hu Moment and Their Application to TV Image Recognition [J]. Computer Engineering and Applications, 2006, 42(29)：213-215.