| 基于频谱编码的小波压缩图像在有噪信道中的传输 |
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| 引用本文： | 郭代飞,朱维红,高振明,张坚强.基于频谱编码的小波压缩图像在有噪信道中的传输[J].山东大学学报(理学版),2001,36(4):405-409. |
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| 作者姓名： | 郭代飞 朱维红 高振明 张坚强 |
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| 作者单位： | 山东大学电子系, |
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| 基金项目： | 国家自然科学基金(69772016)资助课题 |
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| 摘 要： | 研究了利用频谱编码传输技术在有噪信道中传输小波图像压缩数据.图像压缩采用Said等提出的分层树中的集分割(SPIHT)小波压缩编码器.根据图像数据的重要性是从高到低排序的特点,在利用基本的双极性线性相位编码的基础上提出了不等错误保护的4ASK编码方案,取得了很好的抗噪声性能.
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| 关 键 词： | 频谱编码 SPIHT 双极性线性相位编码 4ASK |
| 文章编号： | 0559-7234(2001)04-0405-05 |
| 修稿时间： | 2001年6月11日 |
WAVELET COMPRESSED IMAGE TRANSMISSION OVER NOISY CHANNEL BASED ON THE SPECTRUM CODING |
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| GUO Dai-fai,ZHU Wei-hong,GAO Zhen-ming,ZHANG Jian-qiang.WAVELET COMPRESSED IMAGE TRANSMISSION OVER NOISY CHANNEL BASED ON THE SPECTRUM CODING[J].Journal of Shandong University,2001,36(4):405-409. |
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| Authors: | GUO Dai-fai ZHU Wei-hong GAO Zhen-ming ZHANG Jian-qiang |
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| Abstract: | The transmission of compressed image over noisy channel was studied at the spectrum coding system.The image is compressed with the wavelet encoder based on Set Partitioning in Hierarchical Trees(SPIHT).By virtue of the character of the important information of image being transmitted firstly,it was presented the unequal error protection 4ASK (amplitude shift key)based on bipolar linear-phase coding in the spectrum coding and achieved better performance for reduced noise. |
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| Keywords: | spectrum xode SPIHT bipolar linear-phase code 4ASK |
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