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基于整数小波变换的有损与无损嵌入式图像压缩

Embedded Image Coding with Lossy and Lossless Compression on Integer Wavelet Transform
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摘要 提出了基于整数小波变换的嵌入式图像编码方案,能够进行有损和无损两种模式的图像压缩,在非常低的比特率时能够获得较高质量的重构图像。该方法适合图像的渐进传输,它是使用扩增的零树信号和位面编码的合成技术,最后对产生的符号流进行算术编码。文中给出了该方法与有损和无损压缩标准的性能比较。 An integer wavelet transform based embedded image coding algorithm is proposed. Using this algorithm, both loss and lossless compression can be implemented. Accordingly, low bit rate transmission and high quality reconstructed image can be achieved.This algorithm are beneficial to progressive transmission of images.In the proposed algorithm, augmented zero-tree coding is incorporated with bit plane coding. Performance of this technique is shown for low bit rate in comparison with JPEG,PNG and LOCO-I.
作者 孙文军 魏仲慧 鲍海明 郝志航
机构地区 中国科学院长春光学精密机械与物理研究所
出处 《电路与系统学报》 CSCD 2003年第2期58-61,共4页 Journal of Circuits and Systems
关键词 AZ AZBP 整数小波变换 零树 位面编码 Augmented Zero-Tree Augmented Zero-Tree and Bit Plane Coding Integer Wavelet Transform Zero-Tree Bit Plane Coding
分类号 O231.2 [理学—运筹学与控制论]
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电路与系统学报
2003年 第2期

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