| 基于K-means聚类和SPIHT编码的红外图像压缩算法研究 |
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| 引用本文： | 杨建强,侯建军,刘亮.基于K-means聚类和SPIHT编码的红外图像压缩算法研究[J].光学与光电技术,2012(6):94-97. |
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| 作者姓名： | 杨建强 侯建军 刘亮 |
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| 作者单位： | 中国人民解放军驻三三〇三厂军事代表室;海军航空工程学院控制工程系 |
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| 摘 要： | 提出了基于K-means聚类和SPIHT编码的红外图像压缩算法。通过采用小波域系数的SPIHT编码压缩，克服了JPEG标准压缩算法在低比特率下严重的方块效应；通过K-means聚类算法，克服了嵌入式零树编码算法（EZW）没有充分考虑到图像小波系数同一子带中相邻元素之间相关性的缺陷。实验结果表明，此算法对红外图像具有很好的边缘和纹理保持性能。
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| 关 键 词： | K-means聚类 SPIHT编码 红外图像压缩 小波系数 压缩比 |
Infrared Image Compression Algorithm Based on K-Means Clustering and SPIHT Encoding |
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| YANG Jian-qiang,HOU Jian-jun,LIU Liang.Infrared Image Compression Algorithm Based on K-Means Clustering and SPIHT Encoding[J].optics&optoelectronic technology,2012(6):94-97. |
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| Authors: | YANG Jian-qiang HOU Jian-jun LIU Liang |
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| Institution: | 1 Military Representative Office in 3303 factory of Chinese People’s Liberation Army,Wuhan 430200,China; 2 Department of Control Engineering in Naval Aeronautical and Astronautical University,Yantai 264001,China) |
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| Abstract: | A set partitioning in hierarchiacl trees（SPIHT） encoding method is proposed based on K-means clustering for in- frared image compression. It overcomes the serious effect of blocking artifacts of low bit-rate JPEG standard image compres- sion of SPIHT encodeing the wavelet coefficients by using. K-means clustering overcomes the shortcomings of the embedded zero tree wavelet（EZW） coding algorithm, which does not fully ＊ake into account the correlation among adjacent elements in the same sub-band. Experimental results show that this method can preserve the performance of edge and texture. |
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| Keywords: | K-means clustering set partitioning in hierarchiacl trees encoding infrared image compression wavelet coeffi- cient compression ration |
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