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| 基于多小波变换的GPR图象去噪方法研究 | |
| 引用本文： | 邹海林,隋亚莉,徐俊艳,宁书年.基于多小波变换的GPR图象去噪方法研究[J].系统仿真学报,2005,17(4):855-858,862. |
| 作者姓名： | 邹海林 隋亚莉 徐俊艳 宁书年 |
| 作者单位： | 1. 中国矿业大学机电与信息工程学院,北京,100083;鲁东大学计算机学院,烟台,264025 2. 山东工商学院,烟台,264005 3. 中国矿业大学机电与信息工程学院,北京,100083 |
| 基金项目： | 教育部博士基金资助(20030290003)，山东省自然科学基金资助(Y2002G08)。 |
| 摘 要： | 探讨了多小波函数及其预处理方法对探地雷达(ground penetrating radar-GPR)图象去噪性能的影响，在Donoho D L和Johnstone IM提出的小波阈值去噪方法的基础上提出了一个改进的阈值函数，并对实际的GPR图象进行阈值化处理和对比分析，结果表明选取合适的预处理方法，采用DGHM和STT多小波对GPR图象去噪可获得比其他方法更好的效果。 |
| 关 键 词： | 多小波变换 探地雷达 图象去噪 预滤波 阈值函数 |
| 文章编号： | 1004-731X(2005)04-0855-04 |
Study on Methods of GPR Image De-noising Based on Multi-wavelets Transform |
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| ZOU Hai-lin,SUI Ya-li,XU Jun-yan,NING Shu-nian.Study on Methods of GPR Image De-noising Based on Multi-wavelets Transform[J].Journal of System Simulation,2005,17(4):855-858,862. | |
| Authors: | ZOU Hai-lin SUI Ya-li XU Jun-yan NING Shu-nian |
| Institution: | ZOU Hai-lin1,SUI Ya-li3,XU Jun-yan3,NING Shu-nian1 2 |
| Abstract: | The influence on ground penetrating radar (GPR) image de-noising with the multi-wavelets pre-processing methods and multi-wavelet function is discussed and investigated. A novel thresholding function is presented based on the wavelet shrinkage put forward by Donoho D L and Johnstone I M, and the processing by using an improved thresholding function is analyzed and compared. The results of simulation experiment indicate that the de-noising effect of GPR image with DGHM and STT multi-wavelets based on proper pre-processing methods is better than those traditional methods. |
| Keywords: | multi-wavelet transform ground penetrating radar (GPR) image de-noising pre-filter thresholding function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |