| 基于子带内小波系数相关性的遥感图像滤波 |
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| 引用本文： | 武海洋,王慧,贺峥嵘.基于子带内小波系数相关性的遥感图像滤波[J].测绘工程,2011,20(2):39-42. |
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| 作者姓名： | 武海洋 王慧 贺峥嵘 |
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| 作者单位： | 信息工程大学测绘学院;68011部队; |
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| 基金项目： | 国家自然科学基金资助项目(60778051) |
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| 摘 要： | 滤波是遥感图像处理和应用过程中必不可少的一个环节.传统的小波域滤波方法对所有的细节小波系数逐一进行独立的收缩处理,而没有顾及小波系数之间的相关性,因而不具备较强的鲁棒性和适应性.文中提出一种基于小波系数聚集性分布的滤波策略.该方法认为小波系数的分布具有集中性,对当前的系数在邻域内计算其能量,而后将其纳入系数的收缩策略,...
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| 关 键 词： | 小波变换 遥感图像 图像滤波 阈值策略 邻域 |
RS imagery filtering based on the relativity among wavelet coefficients in the sub-bands |
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| WU Hai-yang,WANG Hui,HE Zheng-rong.RS imagery filtering based on the relativity among wavelet coefficients in the sub-bands[J].Engineering of Surveying and Mapping,2011,20(2):39-42. |
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| Authors: | WU Hai-yang WANG Hui HE Zheng-rong |
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| Institution: | WU Hai-yang1,2,WANG Hui1,HE Zheng-rong1(1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China,2.68011 Troops,Lanzhou 730020,China) |
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| Abstract: | Filtering is one of the essential courses for a remote sensing imagery in its processing and application.Traditional wavelet based methods for image filtering shrinks all the detail coefficients independently and ignores the relativity among wavelet coefficients,thus the adaptability and robust of these methods are poor.The paper proposed a new filtering strategy based on the concentrating distribution of wavelet coefficients.The proposed method believes there exists relativity among wavelet coefficients in... |
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| Keywords: | wavelet transform remote sensing imagery(RS imagery) image filtering shrinkage scheme neighborhood |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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