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Structured light vision is now widely used in weld seam detection for arc welding robot due to its simple structure, high precision, low cost, and real-time characteristic. By taking use of optical triangulation measurement principle, the position of welding seam is able to be measured. Calibration is one of the crucial step before structured light vision can be actually used in the welding system...
A welding seam detection and feature point extraction system for robotic arc welding is proposed in this paper. The system consists of a CCD camera, a line structure laser, a narrowband optical filter to overcome the interference from arc light and other light sources, and an embedded computer board for image processing and error calculation. By taking use of optical triangulation measurement method,...
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