When an application requires knowledge of the spatial transformation from sensor frame to external frame, the necessary hand-eye calibration can be performed using a CalibrationGrid together with the rc_visard’s on-board software modules. A (re)calibration may also be needed if the rc_visard is exposed to strong mechanical impact (e.g. dropped).
The CalibrationGrid (small) is suitable for checking camera calibration and performing camera recalibration of the rc_visard 65. It can also be used for hand-eye calibration of all rc_visards; its compact size making the handling very convenient. Please note that this grid is not suitable for camera calibration of the rc_visard 160.
UR users, please note that a variant of the Calibration Grid (small), that has been optimized for use with Universal Robots, is also available.
The CalibrationGrid (large) is suitable for checking camera calibration and performing camera recalibration of all rc_visards. It can also be used for hand-eye calibration of all rc_visards; but please note that its size may make the handling a bit difficult in conjunction with small robot systems.
Please note that while the calibration grids are printed on a sturdy substrate (6 mm alu-dibond); the painted surface is delicate and must be handled with care.
Downloads and Links
rc_visard product documentation: chapter on camera calibration (html) – EN
rc_visard product documentation: chapter on hand-eye calibration (html) – EN
rc_visard complete product documentation (.pdf) – EN
Roboception’s manual for Universal Robots (html) – EN