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Proceedings Paper

Image and animation cell coding using wedgelets and beamlets
Author(s): Wei Siong Lee; Ashraf A Kassim
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Paper Abstract

Edges are one of the most perceptually important features in images that provide geometric information to views to distinguish objects in a scene. Wavelet based coding algorithms have been successful in image compression, but like classical cosine transform methods, they are unable to provide a good representation of 2D edges. Cel-based animation sequences, or cartoons, contain predominantly edge information. Although these types of images are relatively less complex than real-life images, the geometrical structures within the cel images challenge even the most complex wavelet-based coders. Wedgelets and beamlets are able to capture geometrical structures in images more efficiently than wavelets. In this paper, we propose a novel hybrid image coder that utilises both wavelets and wedgelets to code cartoon images. Our prototype coder demonstrates significant improvements in visual quality of wedgelet/ beamlet coded cartoon images over standard wavelet-based coding techniques.

Paper Details

Date Published: 23 June 2003
PDF: 10 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503012
Show Author Affiliations
Wei Siong Lee, National Univ. of Singapore (Singapore)
Ashraf A Kassim, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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