Paper Info
Title
SPEC Method—A Fine Coregistration Method for SAR Interferometry
Abstract
There is increasing demand for landscape acquisition using interferometric synthetic aperture radar for frequent Earth observation. Making an accurate digital elevation model (DEM) from an interferogram is often seriously affected by a mass of singular points (SPs) included in the interferogram. The origin of a type of SPs lies in inaccurate coregistration in making the interferogram. However, there have not been any method more effective than affine transformation based on cross correlation. Numerous research works have aimed at how to process the SPs resulting in the coregistration. In this paper, contrarily, we propose an additional method of local and nonlinear coregistration which employs the number of SPs as the evaluation criterion. This method provides us with an interferogram to generate a more accurate DEM. Experiments demonstrate that, with the proposed method, we can obtain a DEM having higher signal-to-noise ratios.
Year
DOI
Venue
2011
10.1109/TGRS.2010.2057435
Geoscience and Remote Sensing, IEEE Transactions
Keywords
Field
DocType
digital elevation models,geophysical techniques,radar interferometry,synthetic aperture radar,DEM,Earth observation,SAR interferometry,SPEC method,cross correlation,digital elevation model,evaluation criterion,fine coregistration method,interferometric synthetic aperture radar,landscape acquisition,nonlinear coregistration,signal-to-noise ratios,singular points,Correlation,interferometric synthetic aperture radar (InSAR),singular point (SP)
Cross-correlation,Affine transformation,Computer vision,Interferometric synthetic aperture radar,Synthetic aperture radar,Remote sensing,Interferometry,Digital elevation model,Earth observation,Artificial intelligence,Pixel,Mathematics
Journal
Volume
Issue
ISSN
49
1
0196-2892
Citations 
PageRank 
References 
8
0.62
10
Authors
2
Name
Order
Citations
PageRank
Natsuaki, R.1233.27
Akira Hirose2218.41