| 基于小波变换的静止图象压缩系统 |
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| 引用本文： | 薛晓辉,高文.基于小波变换的静止图象压缩系统[J].宇航学报,1997,18(1):67-75. |
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| 作者姓名： | 薛晓辉 高文 |
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| 作者单位： | 哈尔滨工业大学计算机系，哈尔滨工业大学数学系 |
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| 基金项目： | 国家八六三计划,国家教委博士点基金,国家教委优秀青年教师基金,国家教委跨世纪人才基金 |
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| 摘 要： | 本文实现了一个基于小波变换的静止图象压缩系统。包括以下工作：用引入了小波包思想的小波变换将图象分解到一个完备的多分辨的空间上去，对系数做标量量化，利用小波变换的方向性进行扫描和游程编码，之后对低频部分作ＡＤＰＣＭ编码，最后，系统的输出是嵌入式的。实验结果表明，对于静止图象的压缩，本文的结果在一定程度上好于ＪＰＥＧ
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| 关 键 词： | 图象压缩 小波变换 自适应算术编码 嵌入式编码 |
STILL IMAGE COMPRESSION SYSTEM BASED ON WAVELET TRANSFORM |
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| Xue Xiaohui,Gao Wen,Feng Yingjun.STILL IMAGE COMPRESSION SYSTEM BASED ON WAVELET TRANSFORM[J].Journal of Astronautics,1997,18(1):67-75. |
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| Authors: | Xue Xiaohui Gao Wen Feng Yingjun |
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| Abstract: | In this paper,we present a still image compression system based on wavelet transform,which includes following parts Wavelet transform with better frequency resolution is applied to map image into a complete multiresolution space The coefficients are scalar quantitized,scanned and runlength coded in the proper direction Adaptive arithmetic coding,Fix length HUFFMAN coding and ADPCM methods are employed Finally,the resultiing bitstream is output in an embedded fashion Experiments suggest that our system is superior to JPEG to a certain degree |
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| Keywords: | Inage Compression Wavelet Transform Adaptive Arithmetic Coding Embedded Coding |
| 本文献已被 CNKI 维普 等数据库收录！ |
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