A simultaneous calibration method based on Lie group theory and iterative optimi-ation for robot orientation and hand-eye calibration is proposed to solve the problem of high precision vision measurement and position for industrial manufacturing field robots. The method uses optimi-ation after enhancing the accuracy of robot. Firstly
the pose relationships between the vision system and the robot
that is
the hand-eye relationship and the spatial conversion relationship between calibration plate and robot coordinate system
are taken as the objects for optimi-ation. The forward kinematics solution of the robot and the pose relationship between the vision system and the calibration plate are represented by a homogeneous coordinate matrix
and then a closed-loop optimi-ation equation of the hand-eye relationship of the robot is constructed. Furthermore
a three-dimensional rotation group is used to represent a rotation matrix and to establish a calibration model equation. Then the nonli
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references
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