Fast connected-component labeling based on sequential localoperations in the course of forward raster scan followed by backwardraster scan
Suzuki, K.; Horiba, I.; Sugie, N.
Pattern Recognition, 2000. Proceedings. 15th International Conference on
Volume 2, Issue , 2000 Page(s):434 - 437 vol.2
Digital Object Identifier   10.1109/ICPR.2000.906105
Summary:Presents a fast algorithm for labeling connected components in binary images based on sequential local operations. A one-dimensional table, which memorizes label equivalences, is used for uniting equivalent labels successively during the operations in forward and backward raster directions. The proposed algorithm has a desirable characteristic: the execution time is directly proportional to the number of pixels in connected components in an image. By comparative evaluations, it has been shown that the efficiency of the proposed algorithm is superior to those of the conventional algorithms

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