[1] [1] FU SH J, RUAN Q Q, MU CH P, et al.. Edge detection for image measurement based on nonlinear diffusion filtering[J]. Opt. Precision Eng., 2007,15(2): 289-293. (in Chinese)

[2] [2] ILLINGWORTH J ,KITTLER J. A survey of the Hough transform [J]. Computer Vision, Graphics and Image Processing, 1988, 44:87-116.

[3] [3] AGGARWAL N , KARL W C. Line detection in images through regularized Hough transform [J].IEEE Image Processing, 2006, 15(3):873-876.

[4] [4] PERANTONIS S J, VASSILAS N, TSENOGLOU T, et al.. Robust line detection using weighted region based Hough transform [J]. Electronics letters, 1998, 34(7):648-650.

[5] [5] LU G Q, XU H G, LI Y B. Line segment detection based on chain code detection [J]. Computer Engineering, 2006 ,32(14):1-3,10. (in Chinese)

[6] [6] YU X R, WANG SH G, WANG G ZH, et al.. Subpixel location detection of line feature in digital image [J]. Optical Technique, 2004,30(2):138-141. (in Chinese)

[7] [7] HE B X, ZHANG ZH SH, DAI M, et al.. A high-precision dimension measurement method based on sequential partial images [J]. Opt. Precision Eng., 2008,16(2):367-373. (in Chinese)