Perceptually friendly shape decomposition by resolving segmentation points with minimum cost

Authors:
Chun Wang;Wenyu Liu;Zhongyuan Lai;Hongyuan Wang
Affiliations:
Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Venue:
Journal of Visual Communication and Image Representation
Year:
2013

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Abstract

Organizing objects in terms of parts constructs a natural shape descriptor and provides a foundation for many shape-related applications, such as object detection and tracking. In this paper, we propose a part decomposition scheme that focuses on analyzing the relations between part cuts and segmentation points. Aiming at obtaining perceptually friendly parts, we take the human perception behavior into account when extracting candidate part cuts and defining their costs. The decomposition is to find a subset from candidate part cuts with minimum cost, while guarantee that all segmentation points are resolved. The theoretical and experimental results demonstrate that the proposed method is robust to occlusion, part movement and boundary distortion. We also show that our method can predict most of highly salient part cuts, and have a good performance in hand gesture recognition.