| 基于域块预搜索的快速分形图像编码方法 |
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| 引用本文： | 李晓亮,周国标.基于域块预搜索的快速分形图像编码方法[J].信号处理,2003,19(2):116-119. |
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| 作者姓名： | 李晓亮 周国标 |
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| 作者单位： | 上海交通大学数学系,上海,200030 |
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| 摘 要： | 由于分形图像编码过程非常耗时,本文提出了一种加快编码速度的新方法。通过对分形编码过程中的域块进行分析,首次提出了相似度和最大相似度的概念,并建立了预搜索方法的理论基础,提出了一种基于域块预搜索的快速分形编码方法。实验结果显示,与原始的Jacquin方案相比,在峰值信噪比(PSNR)降低1-3dB时,编码速度可提高400-600倍。
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| 关 键 词： | 图像压缩 分形编码 |
| 修稿时间： | 2002年8月1日 |
A fast fractal image coding method based on the pre-searching of domain blocks |
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| Li Xiaoliang Zhou Guobiao.A fast fractal image coding method based on the pre-searching of domain blocks[J].Signal Processing,2003,19(2):116-119. |
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| Authors: | Li Xiaoliang Zhou Guobiao |
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| Abstract: | A novel fractal image coding method based on the pre-searching of domain blocks is presented in this paper. The method is built on the new ideas of the similar measure and the maximum similar measure, and the mathematical principle to asses the error of the different domain blocks to the same range block. The salient feature is its high coding speed. Comparing with the traditional Jacquin method, it can quicken the coding speed by 400 to 600 times, while the peak-peak signal ratio(PSNR) loses little, about 1dB to 3dB. |
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| Keywords: | image compression fractal coding |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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