Labeling board based on boundary tracking

Describes a newly developed labeling board based on an algorithm in a combination of raster scanning and boundary tracking. This board employs the boundary tracking method and does not require a working memory for temporary labels, and thus it can process labels in size 512*512 images without restricting the maximum numbers of connected regions. It can also count holes within regions, and control labeling by using the perimeter of regions, at the same time of labelling. The processing time is 50 msec for size 512*512 real images.<
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