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| 基于静态小波变换改进邻域系数法的遥感图像滤波 | |
| 引用本文： | 武海洋,王慧,樊菊.基于静态小波变换改进邻域系数法的遥感图像滤波[J].海洋测绘,2011,31(2):24-27. |
| 作者姓名： | 武海洋 王慧 樊菊 |
| 作者单位： | 1. 解放军信息工程大学测绘学院,河南郑州450052;68011部队,甘肃兰州730020 2. 解放军信息工程大学测绘学院,河南郑州,450052 3. 68011部队,甘肃兰州,730020 |
| 摘 要： | 针对NeighShrink滤波算法存在的不足,提出了改进的阈值估计策略和系数收缩方案,并将改进算法与静态小波变换相结合进行图像滤波,取到了较好的滤波效果.实验验证了改进算法的有效性,以峰值信噪比PSNR作为客观评价指标,通过与经典方法的比较,对该算法的滤波性能做出了客观评价. |
| 关 键 词： | 静态小波变换 图像滤波 邻域小波系数 阈值 峰值信噪比 |
Remote Sensing Image Filtering Using Improved NeighShrink Based on Discrete Stationary Wavelet Transformation |
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| WU Hai-yang,WANG Hui,FAN Ju.Remote Sensing Image Filtering Using Improved NeighShrink Based on Discrete Stationary Wavelet Transformation[J].Hydrographic Surveying and Charting,2011,31(2):24-27. | |
| Authors: | WU Hai-yang WANG Hui FAN Ju |
| Institution: | 1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou,Henan,450052;2.68011 Troops,Lanzhou,Gansu,730020) |
| Abstract: | Filtering is one of the essential tasks in the processing and applications of remote sensing images,and image filtering based on wavelet transformation has now become the mainstream in the area.Aimed at the disadvantages in NeighShrink,the author proposed an improved strategy for threshold estimation and coefficients shrinkage,and the improved method based on DSWT was implemented.Experimentation validated the algorithm,and the PSNR was adopted to evaluate the performance of improved algorithms. |
| Keywords: | discrete stationary wavelet transformation image filtering neighboring wavelet coefficients threshold PSNR |
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