Measuring shape: ellipticity, rectangularity, and triangularity

Authors:
Paul L. Rosin
Affiliations:
Department of Computer Science, Cardiff University, Queen's Buildings, Newport Road, PO Box 916, Cardiff CF24 3XF, UK
Venue:
Machine Vision and Applications
Year:
2003

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Abstract

Object classification often operates by making decisions based on the values of several shape properties measured from an image of the object. This paper describes several algorithms (both old and new) for calculating ellipticity, rectangularity, and triangularity shape descriptors. The methods are evaluated by testing on both synthetic and real data.