| 图像压缩中小波与向量小波的选择 |
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| 引用本文： | 张炜,高俊斌. 图像压缩中小波与向量小波的选择[J]. 华中科技大学学报(自然科学版), 1999, 27(7): 751 |
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| 作者姓名： | 张炜 高俊斌 |
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| 作者单位： | 华中理工大学数学系 |
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| 基金项目： | 国家自然科学基金,北京大学视觉与听觉信息处理国家重点实验室资助 |
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| 摘 要： | 针对向量小波的特殊性，分析了在具体实施向量小波变换时的几种实现方案，在算法复杂度、压缩能力等方面与传统小波进行了技术比较，提出了选择具体方案时的判断准则
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| 关 键 词： | 向量小波 正交基 逼近度 预处理 能量压缩比 |
| 修稿时间： | 1998-12-31 |
The Alternative of Multiwavelets in Image Compression |
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| Zhang Wei,Gao Junbin. The Alternative of Multiwavelets in Image Compression[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1999, 27(7): 751 |
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| Authors: | Zhang Wei Gao Junbin |
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| Abstract: | The motivation, the form and the distinguishing features of multiwavelets are overviewed. Offering simultaneous orthogonality, symmetry and short support, multiwavelets differ from scalar wavelet systems in requiring two or more input streams to multiwavelets filter banks. Three methods to obtain such a vectoring input stream are described. Compared with scalar wavelet system, multiwavelet processing is applied to image compression. The criterion to choose multiwavelets is proposed. |
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| Keywords: | multiwavelet orthonormal bases approximation order preprocessing energy compaction ratio |
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