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Linear Calibration for Robot Vision

Calibration is an essential part for visual-guided robot manipulation. In this paper, different calibration methods are studied and compared for future grasping tasks of our robot. For our robot platform, the calibration methods of Zhang and Faugeras are compared, analyzed and verified in the experiments. The experimental results indicate that the accuracy of the calibration of the two methods is in a satisfactory level. However, the experimental method of Zhang is simple and effective. So we prefer to use the Zhang's method for future localization of an object and robot manipulation.