摘要: A hierarchical structure is a stack of successively reduced image representations. Each basic element the father set elements in level below. The transitive closure this father-child relationship associates to each hierarchy base representation. Such set, called receptive field, defines embedding one on original image. Using relationship, global properties field may be computed O(log(m)) parallel processing steps where m diameter field. Combinatorial pyramids are defined as combinatorial maps, map being by two permutations acting half edges named darts. pyramid thus dart. This paper dart within and study main these sets.
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