[3] WAN Yong-jian, YUAN Jia-hu, YANG Li, et al. A model with sub- aperture lap for lapping[J]. Optical Technique, 2005, 31(4): 500-502.
[4] YU Jing-Chi, SUN Xia-fei, GUO Pei-ji, et al. A study on testing techniques for optical elements[J]. Opto-Electronic Engineering, 2002, 29(Suppl): 15-18.
[5] WANG Dong-sheng, WANG Kai-wei, SHNE Yi-bing, et al. Error analysis of spherical ultra-precision measurement[C]. SPIE, 2010, 7656: 76560O- 76560O-7.
[6] CAO Zhao-jing, HU Wu-sheng, MU Quan-quan, et al. Investigation of the connection accuracy of the sub-aperture optical testing with experiment[J]. Acta Photonica Sinica, 2008, 37(6): 1233-1237.
[7] WU You-fu. A survey of the research on edge detection in image processing[J]. Ship Electronic Eng′, leerin, 2006, 26(4): 35-38.
[8] LIU Ke, ZHOU Fu-qiang, ZHANG Guang-jun. Radius constraint least-square circle fitting method and error analysis[J]. Journal of Optoelectronics·Laser, 2006, 17(5): 604-607.
[9] LIU Yuan-peng, ZHANG Ding-hua, Gui Yuan-kun, et al. Fitting planar circles with constrained least squares[J]. Journal of Computer Xi′an Aided Design & Computer Graphics, 2004, 16(10): 1382-1385.