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ICIP
2007
IEEE

Enable Efficient Compound Image Compression in H.264/AVC Intra Coding

14 years 5 months ago
Enable Efficient Compound Image Compression in H.264/AVC Intra Coding
This paper presents an efficient compound image compression approach based on H.264/AVC intra coding. The text blocks are distinguished from the picture blocks and compressed with a new coding mode. In particular, the text blocks are represented by base colors and index map in spatial domain. A color quantization algorithm optimized for compression is designed to generate this representation. As for the entropy coding of text blocks, a structure-aware context-based arithmetic coder is developed. The mode selection algorithm based on rate distortion optimization is used to select the text blocks along with H.264/AVC intra modes, which can adapt to the targeted bit-rate. Experimental results show that the proposed scheme can achieve 2.8dB gain on average for compound images compared with H.264/AVC intra coding.
Wenpeng Ding, Yan Lu, Feng Wu
Added 21 Oct 2009
Updated 21 Oct 2009
Type Conference
Year 2007
Where ICIP
Authors Wenpeng Ding, Yan Lu, Feng Wu
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