Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6042
Title: Improved lossless coding algorithm in H.264/AVC based on hierarchical intraprediction and coding-mode selection
Authors: Wang, L
Siu, WC 
Keywords: Extraction
Image coding
Issue Date: Oct-2011
Publisher: SPIE-International Society for Optical Engineering
Source: Journal of electronic imaging, Oct. 2011, v. 20, no. 4, 043001, p. 1-10 How to cite?
Journal: Journal of electronic imaging 
Abstract: In this paper, an improved lossless intracoding algorithm based on H.264/AVC framework is proposed. In the proposed algorithm, two contributions have been made. One is that samples in a macroblock (MB)/block are hierarchically predicted instead of using block-based prediction as a whole. More specifically, four groups are extracted from the samples in an macroblock/block. Samples in the first group are first predicted based on directional intraprediction method, and then the samples in other groups are predicted using the samples in the first group as the references. As a result, the information left in the residual block can be reduced since the samples can be accurately predicted by using nearer references. The other contribution is that two coding modes are designed to efficiently encode the resulting residual block. A better coding mode can be selected based on the rate optimization. Experimental results show that compared with other methods in the literature the proposed algorithm gives a much better compression performance.
URI: http://hdl.handle.net/10397/6042
ISSN: 1017-9909
EISSN: 1560-229X
DOI: 10.1117/1.3644573
Rights: Wang L and Siu W, "Improved lossless coding algorithm in H.264/AVC based on hierarchical intraprediction and coding-mode selection," J. Electron. Imaging., 20(4), 043001, p. 1-10 (2011)
Copyright 2011 Society of Photo-Optical Instrumentation Engineers & Society for Imaging Science and Technology. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
http://dx.doi.org/10.1117/1.3644573
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