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Content Provider | IET Digital Library |
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Author | Zhou, Hao Tian Chen, Liang Fu, Bo Shi, Hao |
Abstract | The coherent nature of radar illumination causes the speckle effect, which gives the synthetic aperture radar (SAR) image its noisy appearance. The probability distribution of speckle noise is multiplicative rather than additive, which makes the interpretation and processing of SAR imagery more difficult. A novel SAR image denoising method is proposed. First the multiplicative noise is transformed into additive-like noise by logarithmic transformation. After that, a novel object function is proposed which combines a pre-trained dictionary model to deal with the image. Finally, exponential transform is employed to recover the image. Experimental results show that the proposed method can effectively remove the noise of SAR images, and indicate good performance compared with other state-of-the-art methods. |
Starting Page | 7153 |
Ending Page | 7156 |
Page Count | 4 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 20, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/20 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0328 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-07-11 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Additive-like Noise Coherent Nature Exponential Transform Image Denoising Image Reconstruction Image Recovery Image Representation Integral Transforms Logarithmic Transformation Multiplicative Noise Noisy Appearance Optical, Image And Video Signal Processing Pretrained Dictionary Model Probability Distribution Radar Equipment Radar Illumination Radar Imaging SAR Image Denoising Method SAR Imagery Sparse Representation Speckle Speckle Effect Speckle Noise Statistical Distribution Statistics Synthetic Aperture Radar Synthetic Aperture Radar Image System And Application Transform |
Content Type | Text |
Resource Type | Article |
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