Title :
A fast edge detector with subpixel accuracy
Author :
Lee, C.K. ; So, W.C.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech., Hung Hom, Hong Kong
Abstract :
The authors present a fast moment-based method for locating an edge with a subpixel accuracy. The operator is suited to precision measurement of metal parts in a reasonable time period. The algorithm will not give wrong information even though there is no edge under the mask. A one-dimensional edge model is analyzed to find a method for edge detection with subpixel accuracy. The results are used to build the two-dimensional operator. The accuracy of the detector was tested under different noise conditions and is compared with that of other moment-based edge detectors
Keywords :
edge detection; fast edge detector; metal parts; moment-based method; one-dimensional edge model; precision measurement; subpixel accuracy; two-dimensional operator; Area measurement; Computer industry; Computer vision; Detectors; Face detection; Histograms; Image edge detection; Inspection; Testing; Time measurement;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254545
