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Hierarchical Representation Method for Object Recognition
Author(s): HUANG Wei-guo, GU Chao, SHANG Li, YANG Jian-yu, ZHU Zhong-kui
Pages: 854-
861
Year: 2015
Issue:
5
Journal: Acta Electronica Sinica
Keyword: contour description; object recognition; valuation scale; part occlusion;
Abstract: Efficient object contour segment is a critical problem to describe the local features of objects .In order to solve the improper contour segments obtained by the existing recognition methods ,a hierarchical description algorithm of contour description is proposed .Firstly ,the whole contour is divided into several contour segments by the corners on the contour .Then the valuation scale is put forward via the distribution of contour segments .Thirdly ,combine these contour segments into several contour feature segments according to the valuation scale .Finally ,the similarity of different contour feature segments ,in combination with their lengths ,is jointly used to get the best recognized results .The experimental results of MPEG-7 database indicate that this algorithm has great advantage over recently published algorithms ,especially for the objects with partial occlusion .Hence ,this novel algorithm satisfies the requirements of accuracy ,robust and anti-occlusion in object recognition and shape retrieval .
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