| A New Region-of-interest Coding Method to Control the Relative Quality of Progressive Decoded Images |
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| 作者姓名： | 李继良 方向忠 张冬冬 |
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| 作者单位： | Shanghai Key Lab.of Digital Media Processing and Communication Shanghai Jiaotong Univ.，Shanghai Key Lab.of Digital Media Processing and Communication，Shanghai Jiaotong Univ.，Shanghai Key Lab.of Digital Media Processing and Communication，Shanghai Jiaotong Univ.，Shanghai 200240，China，Shanghai 200240，China，Shanghai 200240，China |
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| 基金项目： | Electronic Development Fund of Ministry ofInformation Industry of China(No[2004]479) |
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| 摘 要： | Based on the ideas of controlling relative quality and rearranging bitplanes, a new ROI coding method for JPEG2000 was proposed, which shifts and rearranges bitplanes in units of bitplane groups. It can code arbitrary shaped ROI without shape coding, and reserve almost arbitrary percent of background information. It also can control the relative quality of progressive decoded images. In addition, it is easy to be implemented and has low computational cost.
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A New Region-of-interest Coding Method to Control the Relative Quality of Progressive Decoded Images |
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| LI Ji-liang,FANG Xiang-zhong,ZHANG Dong-dong.A New Region-of-interest Coding Method to Control the Relative Quality of Progressive Decoded Images[J].Journal of Shanghai Jiaotong university,2007,12(4):477-480. |
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| Authors: | LI Ji-liang FANG Xiang-zhong ZHANG Dong-dong |
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| Abstract: | Based on the ideas of controlling relative quality and rearranging bitplanes, a new ROI coding method for JPEG2000 was proposed, which shifts and rearranges bitplanes in units of bitplane groups. It can code arbitrary shaped ROI without shape coding, and reserve almost arbitrary percent of background information. It also can control the relative quality of progressive decoded images. In addition, it is easy to be implemented and has low computational cost. |
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| Keywords: | region of interest (ROI) image coding JPEG2000 transform domain |
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