On Welding Trajectory Centerline Extraction Based on Fuzzy Neural Network
Rong Bai, Shuaishi Liu, Taiting Liu, Hongtao Yang · 2020 IEEE 9th Data Driven Control and Learning Systems Conference (DDCLS) · 2020
Based on the advantages of visual sensing technology with abundant image information and high measurement accuracy, this paper studies the method of extracting the centerline of the welding trajectory. The image was preprocessed to obtain the grayscale image of the weld, the edge of the weld was detected by fuzzy neural network, the contour image of the weld was obtained iteratively by morphological image processing, and the center line of the weld trajectory was extracted by Hessian matrix. It is verified by experiments that the centerline extraction method of weld trajectory studied in this paper can accurately extract the centerlines of welding trajectories of different shapes.