Volume 8 Number 2 (Feb. 2013)
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JSW 2013 Vol.8(2): 259-265 ISSN: 1796-217X
doi: 10.4304/jsw.8.2.259-265

A Contour Representation and Retrieval Algorithm based on Polar-histogram

Lu Ren
Department of Mechanical and Electrical Engineering, West Anhui University, Liuan, China

Abstract—This paper presents a novel method for contour-based shape retrieval. First, they come from contour points which can represent the shape very well as the object contour points got by contour tracing and denoising. Corner points, sampled points and two vector sets are obtained by leading vectors from each point to the contour centroid point. Then, the polar histogram of directions and distance in the vector sets are used to describe the shape. Finally, it combines the similarity measurement criterion of two contours with the polar histogram of the two feature points. The experiment result shows that our algorithm is efficient and is with better performance in the robustness to the scaling, rotation and translation, compared with the traditional algorithms.

Index Terms—Image retrieval; shape representation; polar histogram; feature vector sets.

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Cite: Lu Ren, "A Contour Representation and Retrieval Algorithm based on Polar-histogram," Journal of Software vol. 8, no. 2, pp. 259-265, 2013.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly (Since 2020)
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, Google Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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