A Graph-based Approach for Multiscale Shape Analysis

R. da S. Torres, A. X. Falcão and L. da F. Costa, Pattern Recognition, 37(6):1163-1174, June 2004.

Abstract

This paper presents two shape descriptors, multiscale fractal dimension and contour saliences, using a graph-based approach--- the image foresting transform. It introduces a robust approach to locate contour saliences from the relation between contour and skeleton. The contour salience descriptor consists of a vector, with salience location and value along the contour, and a matching algorithm. We compare both descriptors with fractal dimension, Fourier descriptors, moment invariants, Curvature Scale Space and Beam Angle Statistics regarding to their invariance to object characteristics that belong to a same class (compact-ability) and to their ability to separate objects of distinct classes (separability).

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Last updated on May 7, 2004.
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