Image and animation cell coding using wedgelets and beamlets

Wei Siong Lee; Ashraf A Kassim

doi:10.1117/12.503012

23 June 2003 Image and animation cel coding using wedgelets and beamlets

Wei Siong Lee, Ashraf A Kassim

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.503012
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

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.

Citation Download Citation

Wei Siong Lee and Ashraf A Kassim "Image and animation cel coding using wedgelets and beamlets", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.503012

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