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ICIP
1999
IEEE
14 years 6 months ago
A Rearrangement Algorithm of Wavelet Packet Coefficients for Zerotree Coding
Zerotree coding based on the wavelet transform is a very effective image compression technique. Since it exploits the dyadic multiresolution characteristic of wavelet transform, h...
Hyun Duk Cho, Jong Beom Ra
ICIP
1999
IEEE
14 years 6 months ago
On Zerotree Quantization for Embedded Wavelet Packet Image Coding
Wavelet packets are an effective representation tool for adaptive waveform analysis of a given signal. We first combine the wavelet packet representation with zerotree quantizatio...
François G. Meyer, Nasir Rajpoot, Roland G....
ICIP
2005
IEEE
14 years 6 months ago
Quantifying the coding power of zerotrees of wavelet coefficients: a degree-k zerotree model
A degree-k zerotree model is presented, in order to quantify the coding power of zerotrees in wavelet-based image coding. Based on the model, the coding behaviors of modern zerotr...
Yushin Cho, William A. Pearlman
ICIP
2007
IEEE
14 years 6 months ago
Image Coding using 2-D Anisotropic Dual-Tree Discrete Wavelet Transform
We propose an image coding scheme using 2-D anisotropic dual-tree discrete wavelet transform (DDWT). First, we extend 2-D DDWT to anisotropic decomposition, and obtain more direct...
Jing-Yu Yang, Jizheng Xu, Feng Wu, Qionghai Dai, Y...
IMECS
2007
13 years 6 months ago
A Hybrid SPIHT-EBC Image Coder
—Embedded zero-tree coding in wavelet domain has drawn a lot of attention to the image compression applications. Among noteworthy zero-tree algorithms is the SPIHT algorithm. For...
Hsi-Chin Hsin, Jenn-Jier Lien, Tze-Yun Sung