Hand-eye Calibration for Robots
Algorithm for optimized robot movements during the calibration
Exhibitors
Location
Hall 11, Stand B06
Description
Camera-based robot systems are a central component of modern production and assembly processes today. In areas such as mechanical and plant engineering, automation, and medical technology, robots should be able to reliably assemble and disassemble components. To achieve this, robots and cameras have to be precisely calibrated to each other, similar to the interaction between the human eye and hand, otherwise the robot will miss its target. Researchers from the Digital Process Engineering (DPE) group at the Institute for Mechanical Process Engineering and Mechanics (MVM) at KIT have successfully developed a method that automates and mathematically optimizes hand-eye calibration. The system is built on a digital model of the robot and camera that precisely describes their movement and positional relationships to each other. Based on this, an algorithm calculates a continuous motion path (trajectory) optimized for calibration, which the robot then follows autonomously. In the real-world demonstrator, a camera continuously records the position of the tool via an optical marker on the tool, while the robot simultaneously logs the tool position. The system uses this synchronous data to calculate the exact spatial relationship between the camera, robot, and tool. Additionally, the system statistically evaluates the accuracy achieved. The process is fully automatic and delivers precise and reproducible results – regardless of the operator's experience. It is suitable for both stationary and robot-mounted camera systems. It can also be integrated into existing systems and enables the retrofitting of existing robots for new visual applications.
You can get an overview of this technology at KIT stand. More details can be exchanged individually with the responsible scientific employees of KIT after the industry fair.
Contact
Karlsruher Institut für Technologie (KIT)
- Kaiserstr. 12
- 76131 Karlsruhe
- Germany
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