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Pattern Recognition
Volume 23, Issue 6, 1990, Pages 617-635
 
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doi:10.1016/0031-3203(90)90038-M    How to Cite or Link Using DOI (Opens New Window)
Copyright © 1990 Published by Elsevier Science B.V.

Recognition of occluded objects with heuristic search*1

S. Chaudhury, A. Acharyya and S. SubramanianCorresponding Author Contact Information

Guturu Parthasarathy

Department of Computer Science and Engineering, I.I.T., Kharagpur, PIN 721302, India Department of Electronics and Communication Engineering, I.I.T., Kharagpur, India

Received 10 March 1989; 
revised 21 June 1989; 
accepted 27 September 1989. ;
Available online 19 May 2003.

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Abstract

This paper presents a new heuristic search based approach for recognition of partially obscured planar shapes. Based on a general scheme for representing the planar shapes in terms of their contour segments, a state space formulation is obtained for the recognition problem. The search in the state space is guided by an admissible heuristic function which is not dependent upon the features actually used for representing the shapes. Some schemes for toning up the efficiency of the method are also discussed. A study of the method was carried out by experimenting with some typical objects and results of experimentation are presented.

Author Keywords: Occlusion; Planar shape recognition; State space; Heuristic search; Avar epsilon* algorithm; Pruning strategy

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