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Watershed of a continuous function
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Evaluation of Ridge Seeking Operators for Multimodality Medical Image Matching
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Topographical Properties of Generic Images
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An Unbiased Detector of Curvilinear Structures
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Spatio-Temporal Image Processing: Theory and Scientific Applications
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Multiresolution Analysis of Ridges and Valleys in Grey-Scale Images
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Ridges and valleys are useful geometric features for image analysis. Different characterizations have been proposed to formalize the intuitive notion of ridge/valley. In this paper, we review their principal characterizations and propose a new one. Subsequently, we evaluate these characterizations with respect to a list of desirable properties and their purpose in the context of representative image analysis tasks.