Complex-valued wavelet transform applications in planar shape prototype generation and recognition
Wen-Yao Chen
Wen-Liang Hwang
Inst. of Inf. Sci., Acad. Sinica, Taipei, Taiwan;
This paper appears in: Image Processing. 2002. Proceedings. 2002 International Conference on
Publication Date: 24-28 June 2002
Volume: 3,
On page(s): 877- 880 vol.3
ISSN: 1522-4880
ISBN: 0-7803-7622-6
INSPEC Accession Number: 7614258
Digital Object Identifier: 10.1109/ICIP.2002.1039112
Current Version Published: 2002-12-10
Abstract
The prototype generation has been widely used in industrial design, medical imaging, computer animation, pattern recognition, and computer vision. We propose a new hierarchical tree based algorithm for generating a prototype contour from a class of similar planar solid objects. Our algorithm uses the wavelet moduli of a complex-valued wavelet to extract the contour features. Features of different objects are organized as a binary tree. The root of a subtree corresponds to the prototype contour for the contours of its children. We show that one can update this tree efficiently by only modifying the local subcontours. An experiment of our method to prototype generation and pattern recognition is demonstrated.
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