Image registration in interferometric SAR

Gianfranco Fornaro; Giorgio Franceschetti

doi:10.1117/12.227143

21 November 1995 Image registration in interferometric SAR

Gianfranco Fornaro, Giorgio Franceschetti

Proceedings Volume 2584, Synthetic Aperture Radar and Passive Microwave Sensing; (1995) https://doi.org/10.1117/12.227143
Event: Satellite Remote Sensing II, 1995, Paris, France

Abstract

Image registration in interferometric synthetic aperture radar (SAR) applications is necessary to improve the interferogram quality and in turn the resulting DEM accuracy. This paper deals with a new image registration procedure implemented at raw data processing stage: the two complex SAR images are generated with respect to a common reference output system. All the registration task is achieved via scaling and shifting compensation that can be efficiently and easily included in a standard SAR processing code. An algorithm to estimate the correct processing parameters, whenever the orbital information is inaccurate, is also presented and is based on the relation between spectral shift and linear stretch of the two images. Examples on real and simulated data validate the presented procedure.

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Gianfranco Fornaro and Giorgio Franceschetti "Image registration in interferometric SAR", Proc. SPIE 2584, Synthetic Aperture Radar and Passive Microwave Sensing, (21 November 1995); https://doi.org/10.1117/12.227143

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KEYWORDS

Image registration

Synthetic aperture radar

Interferometric synthetic aperture radar

Antennas

Image processing

Coherence (optics)

Image compression

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