[2] [2] Product manuals.ABB Robot Documentation-lRB1400 M2004[M].Robotics,Sweden:ABB Automation Technologies AB,2005

[4] [4] Harris C,Stephen M.A Combined Comer and Edge Detection[J].Proc.of 4th Alvey Vision Conference,Manchester,UK,1988:147-151

[5] [5] Chen D,Wang Y.A New Sub Pixel Detector for Grid Target Points in Camera Calibration[J].Optical Information Processing,2005,6027:675-680

[6] [6] Tsai R Y.An efficient and accurate camera calibration technique for 3D machine vision[J].Proc.Of IEEE Conference of Computer Vision and Pattern Recognition,1986,3(4):364-374

[7] [7] ZHANG Z.A flexible new technique for camera calibration[J].IEEE Trans.Pattern Analysis and Machine Intelligence,2000,22(11):1330-1334