Title :
On contour invariants: relationship and application
Author_Institution :
Dept. of Inf. Syst., Macau Univ., Macau
Abstract :
Recently, several topological invariants have been proposed for distinguishing holes from external contours in digital images. We first introduce these invariants and then demonstrate their relationship in Z 2. From the total curvature, all the other invariants can be deduced. It indicates that the total curvature is an underlying concept for components. As an application, an algorithm for labelling connected components based on these invariants is proposed. Comparing to existing methods, the approach using the contour invariants is simpler and more efficient
Keywords :
computer vision; edge detection; object recognition; topology; connected component labelling; contour invariants; digital images; digital topology; external contours; image analysis; total curvature; Digital images; Humans; Image analysis; Image processing; Information analysis; Labeling; Lattices; Smoothing methods; Topology;
Conference_Titel :
Pattern Recognition, 1996., Proceedings of the 13th International Conference on
Conference_Location :
Vienna
Print_ISBN :
0-8186-7282-X
DOI :
10.1109/ICPR.1996.546739
