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A novel shape description method based on the Morphological Signature Transform (MST) is presented in this dissertation. The MST uses multiresolution morphological image processing by non-convex multiple structuring elements. A binary image which contains the object shape to bedescribed is represented by means of a multiresolution pyramid. The method is based on the successive morphological erosions of the input image at di erent resolutions by primary and rotated structuring elements. Thedoi:10.1016/0031-3203(93)90004-g fatcat:tiuxvhtugvc4no6xbsr6ctmkju