Title :
Approaches to low level image processing for vision guided seam tracking systems
Author :
Nan, Huang ; Abbott, M.G. ; Beattie, R.J.
Author_Institution :
Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Vision systems based on triangulation with active laser light sources are becoming widely used in robot arc welding. The sensor and preprocessing hardware provide a one-dimensional signal representing a cross section of the seam being tracked. This work describes and compares two different approaches to analyzing these signals as a precursor to matching them to predefined templates. One approach uses an expert systems methodology, while the other uses scale-space filtering
Keywords :
arc welding; computer vision; expert systems; filtering and prediction theory; industrial robots; position control; active laser light sources; computer vision; expert systems; industrial robots; low level image processing; position control; robot arc welding; scale-space filtering; triangulation; vision guided seam tracking systems; Computer vision; Gaussian noise; Hardware; Image processing; Image segmentation; Information filtering; Information filters; Machine vision; Smoothing methods; Welding;
Conference_Titel :
Pattern Recognition, 1988., 9th International Conference on
Conference_Location :
Rome
Print_ISBN :
0-8186-0878-1
DOI :
10.1109/ICPR.1988.28303
