Robot calibration using a 3D vision-based measurement system with a single camera

Testing of an industrial robot’s accuracy and repeatability in off and online environment

“…Also in [15] the authors point out that one of the problems slowing down the development of offline programming is the low static and sciENcE aNd tEchNology dynamic accuracy of positioning of industrial robots. They indicate that the correct calibration of the robot improves the accuracy of its positioning and can also be used as a diagnostic tool in the manufacture and maintenance of robots.…”

Improving accuracy and flexibility of industrial robots using computer vision

“…The first one is to fix cameras in the robot environment so that the cameras can see a calibration fixture mounted on the robot end-effector while the robot changes its configuration. The second typical setup is to mount a camera or a pair of cameras on the end-effector of the robot manipulator (Albada, et al 1994;Meng & Zhuang, 2007;Motta, et al 2001;Motta & McMaster, 2002).…”

Theoretical and practical aspects of robot calibration with experimental verification

“…Details are shown in section 2.2. Vision-based measurement systems designed for robot calibration are cheap and can be used within large measuring volumes with a reasonable accuracy (Motta et al, 2001). The price of the measuring system appears to be a very important issue for medium size or small companies.…”

“…Each algorithm iteration has three steps, where x k represents the parameter list of the mathematical model in the k th iteration and Δx k the alterations to be introduced in the model (Motta et al, 2001). …”