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  Generation of geometrically and radiometrically terrain corrected SAR image products

Loew, A., & Mauser, W. (2007). Generation of geometrically and radiometrically terrain corrected SAR image products. Remote Sensing of Environment, 106(3), 337-349. doi:10.1016/j.rse.2006.09.002.

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 Creators:
Loew, Alexander1, Author           
Mauser, Wolfram1, Author
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1external, ou_persistent22              

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 Abstract: Terrain undulations affect the geometric and radiometric quality of synthetic aperture radar images. The correction of these effects becomes indispensable when quantitative image analysis is performed with respect to the derivation of geo- and biophysical parameters. The paper presents a rigorous approach for geometric and radiometric correction of SAR images. Using a digital elevation model, the imaging geometry is reconstructed and is used to perform geometric and radiometric correction of terrain induced distortions. The importance of a stringent radiometric correction based on the integration of the image brightness is emphasized. The approach guarantees that the energy contained in the image data is preserved throughout the geocoding process. The resulting backscattering images are fully terrain corrected and can be used for further quantitative investigations and may also improve qualitative studies as e.g. land cover classifications. The technique is applicable for different sensor types and image products, including already geocoded SAR images. The effect of different resolutions of digital elevation models used for the correction of the backscattering coefficient is investigated. (c) 2006 Elsevier Inc. All rights reserved.

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Language(s): eng - English
 Dates: 2007
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000244352900005
DOI: 10.1016/j.rse.2006.09.002
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Title: Remote Sensing of Environment
Source Genre: Journal
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Publ. Info: New York : Elsevier
Pages: - Volume / Issue: 106 (3) Sequence Number: - Start / End Page: 337 - 349 Identifier: ISSN: 0034-4257
CoNE: https://pure.mpg.de/cone/journals/resource/954925437513