PMID: 15376954Sep 21, 2004Paper

Context modeling based on context quantization with application in wavelet image coding

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Jianhua Chen

Abstract

Context modeling is widely used in image coding to improve the compression performance. However, with no special treatment, the expected compression gain will be cancelled by the model cost introduced by high order context models. Context quantization is an efficient method to deal with this problem. In this paper, we analyze the general context quantization problem in detail and show that context quantization is similar to a common vector quantization problem. If a suitable distortion measure is defined, the optimal context quantizer can be designed by a Lloyd style iterative algorithm. This context quantization strategy is applied to an embedded wavelet coding scheme in which the significance map symbols and sign symbols are directly coded by arithmetic coding with context models designed by the proposed quantization algorithm. Good coding performance is achieved.

References

Jan 1, 1992·IEEE Transactions on Neural Networks·S G Kong, B Kosko
Jan 1, 1997·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·X Wu
Jan 1, 1996·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·M J WeinbergerR B Arps
Jan 1, 1994·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·D Taubman, A Zakhor
Jan 1, 1992·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·M AntoniniI Daubechies

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Citations

Nov 22, 2014·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Francesc Aulí-Llinàs
Mar 11, 2009·IEEE Transactions on Bio-medical Engineering·Boqiang HuangJianhua Chen
Jan 27, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Mantao XuPasi Fränti
May 17, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Yong Zhang, Donald A Adjeroh
Feb 18, 2011·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Francesc Aulí-Llinàs
Jan 29, 2005·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Feng HuangCharles Saylor
Apr 13, 2006·Journal of Toxicology and Environmental Health. Part a·Bliss L TracyDorothy Meyerhof

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