SAR Interferogram Filtering of Shearlet Domain Based on Interferometric Phase Statistics
| Autor: | Haiqiang Fu, Qinghua Xie, Bing Zhang, Yonghong He, Bing Xu, Jianjun Zhu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Synthetic aperture radar
010504 meteorology & atmospheric sciences Noise reduction 0211 other engineering and technologies Phase (waves) phase filtering phase statistics 02 engineering and technology 01 natural sciences lcsh:Technology lcsh:Chemistry Phase noise General Materials Science Computer vision Instrumentation lcsh:QH301-705.5 021101 geological & geomatics engineering 0105 earth and related environmental sciences Mathematics shearlet coherence Interferometric SAR (InSAR) Fluid Flow and Transfer Processes business.industry lcsh:T Process Chemistry and Technology General Engineering Astrophysics::Instrumentation and Methods for Astrophysics Filter (signal processing) lcsh:QC1-999 Computer Science Applications Noise lcsh:Biology (General) lcsh:QD1-999 Shearlet lcsh:TA1-2040 Artificial intelligence business lcsh:Engineering (General). Civil engineering (General) lcsh:Physics Coherence (physics) |
| Zdroj: | Applied Sciences; Volume 7; Issue 2; Pages: 141 Applied Sciences, Vol 7, Iss 2, p 141 (2017) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app7020141 |
| Popis: | This paper presents a new filtering approach for Synthetic Aperture Radar (SAR) interferometric phase noise reduction in the shearlet domain, depending on the coherent statistical characteristics. Shearlets provide a multidirectional and multiscale decomposition that have advantages over wavelet filtering methods when dealing with noisy phase fringes. Phase noise in SAR interferograms is directly related to the interferometric coherence and the look number of the interferogram. Therefore, an optimal interferogram filter should incorporate information from both of them. The proposed method combines the phase noise standard deviation with the shearlet transform. Experimental results show that the proposed method can reduce the interferogram noise while maintaining the spatial resolution, especially in areas with low coherence. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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