Image retrieval via geometric constraints histogram descriptor based on curvature graph

Authors:
Yonghua Xie;Micheal OhEigeartaigh
Affiliations:
Institute of Computer, Nanjing University of Information Science & Technology, Nanjing, China and Department of Computing, Waterford Institute of Technology, Waterford, Ireland;Department of Computing, Waterford Institute of Technology, Waterford, Ireland
Venue:
FSKD'09 Proceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 5
Year:
2009

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Abstract

A new statistical descriptor of geometric constraints histogram (GCHD) based on curvature graph for image retrieval is presented in this paper. Through this method, the image contour curvature graph is firstly computed, and the edge and angle geometric constraints based on the curvature graph are extracted. Then the histogram algorithm is applied on the geometric constraints to obtain the statistical histogram descriptor. Experimental results validate the satisfactory performance of the proposed descriptor.