Adaptive Block-Based Image Coding with Pre-/Post-Filtering

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http://doi.ieeecomputersociety.org/10.1109/DCC.2005.11

Data Compression Conference (DCC'05)

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	ASCII Text	x
	Wei Dai, Lijie Liu, Trac D. Tran, "Adaptive Block-Based Image Coding with Pre-/Post-Filtering," Data Compression Conference, pp. 73-82, Data Compression Conference (DCC'05), 2005.

	BibTex	x
	@article{ 10.1109/DCC.2005.11, author = {Wei Dai and Lijie Liu and Trac D. Tran}, title = {Adaptive Block-Based Image Coding with Pre-/Post-Filtering}, journal ={Data Compression Conference}, volume = {0}, year = {2005}, issn = {1068-0314}, pages = {73-82}, doi = {http://doi.ieeecomputersociety.org/10.1109/DCC.2005.11}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, }

	RefWorks Procite/RefMan/Endnote	x
	TY - CONF JO - Data Compression Conference TI - Adaptive Block-Based Image Coding with Pre-/Post-Filtering SN - 1068-0314 SP73 EP82 A1 - Wei Dai, A1 - Lijie Liu, A1 - Trac D. Tran, PY - 2005 KW - null VL - 0 JA - Data Compression Conference ER -

Wei Dai, The Johns Hopkins University, Baltimore, MD

Lijie Liu, The Johns Hopkins University, Baltimore, MD

Trac D. Tran, The Johns Hopkins University, Baltimore, MD

This paper presents an adaptive block-based image coding method, which combines the advantages of variable block size transform and adaptive pre-/post-filtering scheme. Our approach partitions an image into blocks with different sizes, which are best suitable for the characteristics of the underlying data in the rate-distortion (RD) sense. The adaptive block decomposition mitigates the ringing artifacts by adopting small block size transform in non-stationary regions, and improves the coding efficiency by using large block size transform in homogenous regions. Moreover, pre-/post- filtering is adaptively applied along the block boundaries to improve coding efficiency and minimize blocking artifacts. Simulation results show that the proposed coder can achieve competitive objective performance as well as yield superior reconstruction visual quality, compared with the RD-optimized JPEG2000 and H.264/AVC I-frame coder.

Citation:

Wei Dai, Lijie Liu, Trac D. Tran, "Adaptive Block-Based Image Coding with Pre-/Post-Filtering," dcc, pp.73-82, Data Compression Conference (DCC'05), 2005

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