A Review of Shape Descriptors for Document Analysis
Oriol Ramos Terrades, Salvatore Tabbone, Ernest Valveny · Proceedings of the International Conference on Document Analysis and Recognition · 2007
Shape descriptors play an important role in many document 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 classification of shape descriptors that permits to classify according to their properties pointing out their strengths and weaknesses.