[2] LI Baozhang，CUI Yanping. Edge Subpixel Location of Ellipse in Computer Vision Measurement [C]// 3rd International Conference on Advanced Computer Control，Harbin，China，Jan 18-20，2011: 452-456.

[4] GUO Yubo，YAO Yu，DI Xiaoguang. Research on structural parameter optimization of binocular vision measuring system for parallel mechanism [C]// International Conference on Mechatronics and Automation，Luoyang，China，June 25-28，2006: 1131-1135.

[5] LIU Qiong，QIN Xiansheng，YIN Shenshun，et al. Structural parameters optimal design and accuracy analysis for binocular vision measure system [C]// International Conference on Advanced Intelligent Mechatronics，Xian，China，July 2-5，2008: 156-161.

[8] Carsten Steger，Maekus Ulrich，Christian Wiedemann，et al. Machine Vision Algorithms and Applications [M]. Berlin: Wiley-VCH，2008: 268-274.

[9] Ishita De，Bhabatosh Chanda，Buddhajyoti Chattopadhyay. Enhancing effective depth-of-field by image fusion using mathematical morphology [J]. Images and Vision Computing(S0262-8856)，2006，24(12): 1278-1287.

[10] Prasad A K. Stereoscopic particle image velocimetry [J]. Experiments in fluids(S0723-4864)，2000，29(2): 103-116.