| 小波变换在遥感图像处理中的应用 |
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| 引用本文： | 徐慧慧,孙运强,姚爱琴.小波变换在遥感图像处理中的应用[J].电子测试,2010(10):23-25,31. |
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| 作者姓名： | 徐慧慧 孙运强 姚爱琴 |
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| 作者单位： | 1. 中北大学信息与通信工程学院,山西,太原,030051
2. 中北大学仪器科学与动态测试教育部重点实验室,山西,太原,030051 |
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| 摘 要： | 遥感图像处理对于航空、航天、军事侦察、灾害预报等许多军事和民用领域至关重要,本文针对遥感图像噪声大、边界不清楚等问题,提出了应用小波变换对遥感图像进行降噪和边缘检测处理的方法。然后详细介绍了基于小波变换的图像降噪和图像边缘检测原理,并对具体的遥感图像进行降噪和边缘检测处理,实验结果表明小波变换降噪结果优于中值滤波和均值滤波降噪结果,基于小波变换的边缘检测可有效地检测遥感灰度图像的边缘,其边缘检测结果优于Canny算子。
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| 关 键 词： | 小波变换 遥感图像 降噪 边缘检测 |
Application of wavelet transform in the processing of remote sensing image |
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| Xu Huihui,Sun Yunqiang,Yao Aiqin.Application of wavelet transform in the processing of remote sensing image[J].Electronic Test,2010(10):23-25,31. |
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| Authors: | Xu Huihui Sun Yunqiang Yao Aiqin |
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| Affiliation: | 1 College of Information and Communication Engineering,North University of China,Taiyuan 030051,China; 2 Key Laboratory of Instrumentation Science ＆ Dynamic Measurement-ministry of Education,North University of China,Taiyuan 030051,China) |
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| Abstract: | This paper briefly introduces the basic concepts and characteristics of the wavelet transform. According to the problems of high noise and unclear boundary of romote sensing image,we proposed the method to reduce noise and detect edge of the romote sensing image use the wavelet transform.Then described the principles of noise reduction and edge detection of image based on wavelet transform in detail,and do processing of noise reduction and edge detection to the specific romote sensing image.The experimental results show that noise reduction result of wavelet transform is superior to median filter and mean filter,the wavelet transform can detect the edge of romote sensing Grayscale image effectively,the edge detection result is superior to Canny edge detector. |
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| Keywords: | Wavelet transform Romote sensing image Noise reduction Edge detection |
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