[3] [3] ZHANG Z. A flexible new technique for camera calibration［J］. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2000, 22(11): 1330-1334.

[4] [4] KUMAR S, TIWARI P K, CHAUDHURY S B. An optical triangulation method for non-contact profile measurement［C］//2006 IEEE International Conference on Industrial Technology. Mumbai, India: IEEE, 2007: 2878-2883.

[6] [6] DEWAR R． Self-generated targets for spatial calibration of structured light optical sectioning sensors with respect to an external coordinate system ［J］． Society of Manufacturing Engineers, 1988: 5-13．

[7] [7] HUYNH D Q, OWENS R A, HARTMANN P E. Calibrating a structured light stripe system: A novel approach［J］. International Journal of Computer Vision, 1999, 33(1): 73-86.

[11] [11] SALVI J, PAGS J, BATLLE J. Pattern codification strategies in structured light systems［J］. Pattern Recognition, 2004, 37(4): 827-849.

[13] [13] PERONA P, MALIK J. Scale-space and edge detection usinganisotropic diffusion［J］. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1990, 12(7): 629-639.

[14] [14] STEGER C. An unbiased detector of curvilinear structures［J］. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1998, 20(2): 113-125.