Wavelet image coding based on directional dilation

Jia Wang; Songyu Yu; Jun Sun

doi:10.1117/12.453042

4 January 2002 Wavelet image coding based on directional dilation

Jia Wang, Songyu Yu, Jun Sun

Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453042
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

In this paper, we present a novel wavelet image coding method based on the concept of directional dilation. We investigate the relationship among coefficients within and cross subbands and find that the concept of directional dilation is very helpful in expressing positions of significant coefficients. Furthermore, we try to combine two efficient ways: in-band directional dilation and quad-tree prediction together. According to this, we designed a new wavelet encoder, and experiment results show that the proposed method can outperform many famous algorithms in literature yet still possesses the embedded property.

Citation Download Citation

Jia Wang, Songyu Yu, and Jun Sun "Wavelet image coding based on directional dilation", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453042

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