... will take and, moreover, the more noise there may be in it, whereas the smaller it becomes, the more possible those stripes are outside the window. So the original rectangle window can be defined in (2) as: Extended Kalman filter Structured-light vision Welding robot Welding seam identification...

..., and experimental results show that the welding robot can track space-curved fillet weld joints with high accuracy and good reliability. Research limitations/implications The welding robot can improve the welding quality and efficiency. Practical implications The welding robot can track fillet weld joints...

... (GTAW) process. Design/methodology/approach By analyzing some main parameters on the effect of image capturing, a passive vision sensor for welding robot was designed in order to capture clear and steady welding images. Based on the analysis of the characteristic of the welding images, a new...

... in welding robot field. Design/methodology/approach A typical stereo vision system fixed on welding robot is designed and constructed to compute the position information of spatial seam. A simplified error analysis model of the two arbitrary putting cameras is built to analyze the effect of sensors...