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Similarity is one of the important Gestalt laws for contour grouping. Edges are the basic elements of contour grouping. We define a novel measurement of edge similarity on the case of that an edge representation includes an estimate of the image intensity on either side of each edge. We discuss how to choose a proper feature to encode edge regions and which shape and size region is proper to edge...
Most unsupervised methods in boundary detection fail to manage the small veins with strong contrast in brightness. Aiming at this, the paper presents a novel method in boundary detection, which is based on two parts. The first part is combination of LBP (local binary pattern) and maximum difference criterion of texture to get a clear salient-boundary-point image, using local texture cues to cut down...
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