[1] [1] Wang Chunfang. Improved sub-pixel edge location based on spatial moment[J]. International Journal of Simulation Systems, Science & Technology, 2017, 17(11): 1-6.

[2] [2] Fernandes S R, Estrela V V, Saotome O. On improving sub-pixel accuracy by means of B-spline[C]//Imaging Systems and Technology, 2014 IEEE International conference on, 2014: 101109/IST.2014.6958448.

[3] [3] Sun Qiucheng, Hou Yueqian, Tan Qingchang. A subpixel edge detection method based on an arctangent edge model[J]. Optik - International Journal for Light and Electron Optics, 2016, 127(14): 5702-5710.

[4] [4] Tong Jin, Wang Yahui, Lu Jisheng, et al. Coaxiality measurement of large-size forged components based on CCD[J]. Journal of Jilin University Engineering and Technology Edition, 2013, 43(4): 945-950. (in Chinese)

[5] [5] Zhou Sen, Guo Yongcai, Gao Chao. Dynamic length measuring system for large scale workpieces[J]. Optics and Precision Engineering, 2012, 20(11): 2472-2478. (in Chinese)

[6] [6] Li Jiangjun, Wang Yuhao, Tong Chaonan, et al. An accurate zernike moment-oriented method for measuring flat strip dimension[J]. Acta Electronica Sinica, 2015, 43(7): 1432-1436. (in Chinese)

[7] [7] Duan Xiaoyun, Wang Ning, Zhao Wenzhen, et al. Sub-pixel edge location algorithm based on Gauss integral curved surface fitting[J]. Chinese Journal of Scientific Instrument, 2017, 38(1): 219-225. (in Chinese)

[8] [8] Guan Bo, Wang Junyuan, Du Wenhua, et al. Research on sub-pixel recise thresholding for tool contour extraction[J]. Journal of Graphics, 2014, 35(6): 950-953. (in Chinese)

[9] [9] Geng Lei, Ye Kun, Xiao Zhitao, et al. Measuring method for planar sheet metal parts based on upper and lower edges distinguish algorithm[J]. Infrared and Laser Engineering, 2016, 45(6): 0617010. (in Chinese)

[10] [10] Xiao Zhitao, Zhu Shasha, Geng Lei, et al. Calibration method for parts dimension measurement system based on depth constraint[J]. Infrared and Laser Engineering, 2015, 44(9): 2831-2836. (in Chinese)