[1] LI Jing-hong. Imaging and Image Processing System of Auto Lensmeter [J]. Journal of North University of China,2009,30(3):296-300.
[2] LIU Chen,ZHANG Hui,KE Yu-jun. Development of Automatic Lensmenter [J]. Optical Instrument,2003,25(6):39-44.
[5] DAI Bai-chuan,LIU Cheng. Solving the Location and Shape of Oval-shaped Objects [J]. China New Telecommunications,2009,11(23):79-81.
[7] LIU Shu-gui,LI Peng,NA Yong-lin. Evaluation of the Form Error of Ellipse Based on Least Square Method [J]. Acta Metrologica Sinica,2002,23(4):245-247.
[8] WU Jian-ping,YE Yu-tang,LIU Lin,et al. Study and Implementation of High-speed Real-time Image Processing Technique Based on SOPC [J]. Opto-Electronic Engineering,2011,38(8):125-130.
[9] LI Mu,YAN Ji-hong. Improvement on Canny Operator by Algorithm of Self-adaptive Determining Double-threshold [J].Journal of Jilin University,2008,38(4):913-918.