Next Article in Journal
Steady-State Creep of Asphalt Concrete
Previous Article in Journal
A 3D Skeletonization Algorithm for 3D Mesh Models Using a Partial Parallel 3D Thinning Algorithm and 3D Skeleton Correcting Algorithm
Open AccessArticle

SAR Interferogram Filtering of Shearlet Domain Based on Interferometric Phase Statistics

1
School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
2
School of Civil and Environmental Engineering, Hunan University of Science and Engineering, Yongzhou 425199, China
*
Author to whom correspondence should be addressed.
Academic Editor: Ting-Chung Poon
Appl. Sci. 2017, 7(2), 141; https://doi.org/10.3390/app7020141
Received: 21 November 2016 / Revised: 14 January 2017 / Accepted: 17 January 2017 / Published: 4 February 2017
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. View Full-Text
Keywords: phase filtering; phase statistics; shearlet; coherence; Interferometric SAR (InSAR) phase filtering; phase statistics; shearlet; coherence; Interferometric SAR (InSAR)
Show Figures

Figure 1

MDPI and ACS Style

He, Y.; Zhu, J.; Fu, H.; Xie, Q.; Xu, B.; Zhang, B. SAR Interferogram Filtering of Shearlet Domain Based on Interferometric Phase Statistics. Appl. Sci. 2017, 7, 141.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop