[1] H. Fujii, T. Asakure, Y. Shindo. Measurement of surface roughness propertics by using speckle contrast. J. Opt. Soc. Amer., 1976, 66(11): 1217～1222

[2] E. Archbold, A. E. Ennos. Displacement measurement from double-exposure laser photographs. Opt. Acta, 1972, 19(4): 253～271

[3] G. Cloud. Practical speckle interferometry for measuring in-plane deformatiom. Appl. Opt., 1975, 14(4): 878～884

[4] O. J. Lokberg, K. Hogmoen. Vibration phasemapping using electronic speckle pattern interferometry. Appl. Opt., 1976, 15(11): 2701～2704

[5] W. B. Thompson, S. T. Barnard. Lower-level estimation and interpretation of visual motion. Computer, 1981, 14(8): 20～28

[7] B. K. P. Horn, B. G. Schunck. Determining Optical Flow. Artificial Intelligence, 1981, 17(3): 185～203

[10] R. Mehrotra, K. R. Namuduri, N. Ranganathan. Gabor filter-based edge detection. Pattern Recognition, 1992, 25(12): 1479～1494

[11] John Canny. A computational approach to edge detection. IEEE Tranon Pattern Analysis and Machine Intelligence, 1986, PAMI-8(6): 679～698