计算机科学 ›› 2003, Vol. 30 ›› Issue (12): 132-135.
杨丹 杨亚威 张小洪 李东
摘要: In this paper a new high accuracy image measurement and registration system design is proposed, in which edges of image in pixel are detected by improved Canny operator, edge points are recorded by an auto-tracing algorithm, edges in sub-pixel are located
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