A Review of Shape Descriptors for Document Analysis

Authors:
O. R. Terrades;S. Tabbone;E. Valveny
Affiliations:
Universitat Autonoma de Barcelona;LORIA-Universite Nancy 2, Cedex, France;Universitat Autonoma de Barcelona
Venue:
ICDAR '07 Proceedings of the Ninth International Conference on Document Analysis and Recognition - Volume 01
Year:
2007

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Abstract

Shape descriptors play an important role in many doc- ument analysis application. In this paper we review some of the shape descriptors proposed in the last years from a new point of view. We propose the definitions of descriptor and primitive and introduce the notion of feature extraction method. With these definitions, we propose a new classifica- tion of shape descriptors that permits to classify according to their properties pointing out their strengths and weak- nesses.