[1] [1] YE X, GAO J, ZHANG Z J, et al.. Robotic microassembly for meso-scale application ［J］. Industrial Robot: An International Journal, 2015, 42(2): 142-148.

[2] [2] WASON J D, WEN J T, GORMAN J J, et al.. Automated multiprobe microassembly using vision feedback ［J］. IEEE Transactions on Robotics, 2012, 28(5): 1090-1103.

[3] [3] LOU ZH F, WANG X D, YOU B, et al.. Pressing-fitting technology and instrument for precision small parts ［J］. Opt. Precision Eng., 2015, 23(6): 1605-1611.(in Chinese)

[4] [4] TANG Y L, ZHANG ZH J, ZHANG X F, et al.. Design of precise alignment orthogonal system used in micro-assembly ［J］. Opt. Precision Eng., 2012, 20(7): 1542-1550.(in Chinese)

[5] [5] ZHOU L P, SUN ZH J, ZHANG Q. Auto-focusing and control of micro-vision system ［J］. Opt. Precision Eng., 2013, 21(3): 807-812.(in Chinese)

[6] [6] MAIER A, NIEDERBRUCKER G, STENGER S, et al.. Efficient focus assessment for a computer vision-based Vickers hardness measurement system［J］. SPFE, 2011, 8000(17): 477-526.

[7] [7] LI F D, XU D, SHI Y L, et al.. Motion-based microscopic camera calibration and application on micro tube-hole insertion ［J］. Optical Engineering, 2014, 53(5): 53103-53109.

[8] [8] LIU J, GONG Z, TANG K, et al.. Locating end-effector tips in robotic micromanipulation ［J］. IEEE Transactions on Robotics, 2014, 30(1): 125-130.

[9] [9] QIU Y R, LI Y H, CHEN Y X, et al.. Experiments on image processing for micro-assembly ［J］. Applied Mechanics and Materials, 2013, 333-335(1): 924-928.

[10] [10] BILEN H, HOCAOGLU M A, UNEL M, et al.. Developing robust vision modules for microsystems applications ［J］. Machine Vision and Applications, 2012, 23(1): 25-42.