| 雷达图像快速无损压缩算法 |
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| 引用本文： | 李天伟,贾传荧,郭模灿,李春鑫. 雷达图像快速无损压缩算法[J]. 船舶工程, 2005, 27(2): 20-23 |
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| 作者姓名： | 李天伟 贾传荧 郭模灿 李春鑫 |
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| 作者单位： | 大连舰艇学院,大连,116018;大连海事大学,大连,116026;海军九○二厂,大连,200083 |
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| 摘 要： | 针对船用航行数据记录仪雷达图像无损压缩问题,提出了将整数小波和改进SPECK相融合的算法.该算法利用整数小波对图像进行变换,进而采用引入了Hash表和综合匹配法的改进SPECK进行编码.雷达图像无损压缩仿真结果表明,该算法不仅提高压缩速度,而且提高了压缩比.
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| 关 键 词： | 图像处理 整数小波变换 SPECK 无损压缩 匹配 |
| 文章编号： | 1000-6982(2005)02-0020-04 |
| 修稿时间： | 2004-06-15 |
Fast and Lossless Compression Algorithm for Radar Image |
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| LI Tian-wei,JIA Chuan-ying,GUO Mo-can,LI Chun-xin. Fast and Lossless Compression Algorithm for Radar Image[J]. Ship Engineering, 2005, 27(2): 20-23 |
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| Authors: | LI Tian-wei JIA Chuan-ying GUO Mo-can LI Chun-xin |
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| Abstract: | In view of the problem of lossless compression for VDR radar image, an algorithm combining the integer wavelet transform with improved SPECK is presented. With the algorithm, the image is first transformed by integer wavelet, then improved SPECK, in which synthetic matching and Hash table are brought, is used to code. The simulation of radar image lossless compression shows that both compression speed and rate are improved. |
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| Keywords: | SPECK |
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