| SPIHT静止图像压缩技术研究 |
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| 引用本文： | 杜会斌,吴晓娟,周旭,张学庆. SPIHT静止图像压缩技术研究[J]. 无线电工程, 2006, 36(2): 27-29 |
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| 作者姓名： | 杜会斌 吴晓娟 周旭 张学庆 |
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| 作者单位： | 1. 山东大学信息科学与工程学院,山东 济南 250100
2. 中国电子科技集团公司第54研究所,河北 石家庄 050081 |
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| 摘 要： | JPEG2000的静止图像压缩算法具有很多优良特性,其核心算法是EBCOT,构造复杂、硬件实现难度大。而基于SPIHT算法的图像压缩效率接近EBCOT,但结构简单、易于硬件实现。通过对SPIHT和JPEG2000算法进行融合,提出了一套压缩比高、可实现由有损到无损、码流渐进传输的静止图像编码方案,并对SPIHT算法与(9,7)小波提升算法的融合方法进行分析研究,所构造系统性能与JPEG2000算法接近,具有较好的应用前景。
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| 关 键 词： | 小波变换 分量变换 SPIHT Huffman |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005-06-13 |
Still Image Coding Technology Based on SPIHT |
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| DU Hui-bin,WU Xiao-juan,ZHOU Xu,ZHANG Xue-qing. Still Image Coding Technology Based on SPIHT[J]. Radio Engineering of China, 2006, 36(2): 27-29 |
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| Authors: | DU Hui-bin WU Xiao-juan ZHOU Xu ZHANG Xue-qing |
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| Abstract: | JPEG2000 whose core is EBCOT has many good characteristics in still image compression, but it's complex to construct and difficult to realize with hardware. However, the image compression algorithm based on SPIHT has near efficiency to EBCOT, and it's simpler to construct and easier to realize with hardware. Syncretizing SPIHT and JPEG2000, we get a still image compression plan with high compression ratio, which realizes lossy to lossless code stream and progressive still image coding. The plan makes a deep research on SPIHT and D(9,7) wavelet lifting scheme. Our plan can construct the system with the near performance of JPEG2000, which will have a good application future. |
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| Keywords: | SPIHT Huffman |
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