6Slatkin A B, Burdick J, Grundfest W. The development of robotic endoscope[A]. Proc.IEEE Int Conf. On Robotic and Automation[C] . Nagoya, Aichi, Japan, 1995, 162-171.
7Dario P .A micro robotic system for colonoscopy[A]. Proceedings of the 1997 IEEE International Conference on Robotics and Automation[C].Albuquerque, New Mexico,1997, 1567-1572.
8OmniVison Technologies, Inc. OV6640 single-chip CMOS CIF color digital camera, Version 1.0[Z], 2000.
