Multiscale directional filtering of noisy InSAR phase images

Vishal M. Patel; Glenn R. Easley; Rama Chellappa

doi:10.1117/12.849576

12 April 2010 Multiscale directional filtering of noisy InSAR phase images

Vishal M. Patel, Glenn R. Easley, Rama Chellappa

Proceedings Volume 7703, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering VIII; 770308 (2010) https://doi.org/10.1117/12.849576
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

In this work, we present a new approach for the problem of interferometric phase noise reduction in synthetic aperture radar interferometry based on the shearlet representation. Shearlets provide a multidirectional and multiscale decomposition that have advantages when dealing with noisy phase fringes over standard filtering methods. Using a shearlet decomposition of a noisy phase image, we can adaptively estimate a phase representation in a multiscale and anisotropic fashion. Such denoised phase interferograms can be used to provide much better digital elevation maps (DEM). Experiments show that this method performs significantly better than many competitive methods.

Citation Download Citation

Vishal M. Patel, Glenn R. Easley, and Rama Chellappa "Multiscale directional filtering of noisy InSAR phase images", Proc. SPIE 7703, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering VIII, 770308 (12 April 2010); https://doi.org/10.1117/12.849576

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