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Proceedings Paper

An accurate SAR co-registration method for rugged terrain
Author(s): Hai-jun Wei; Ju-bo Zhu; Dian-nong Liang
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Paper Abstract

Accurate co-registration of synthetic aperture radar (SAR) images is essential for SAR interferometric applications such as along track interferometry (ATI) and across track interferometry (XTI). In this paper, we present a non-linear and linear joint algorithm for the SAR image co-registration which could be used in highly rugged terrain. First, a slave image transformation is performed by a non-linear mapping which is based on free available SRTM (Shuttle Radar Topography Mission) DEM (Digital Elevation Models) and orbit parameters of both tracks to correct the distortions related to different view angles. Second, we calculate linear offsets between master image and transformed slave image with ordinary correlation based method to correct the offsets related to orbital errors. Our initial results show the effectiveness of such algorithm in co-registering critical SAR images.

Paper Details

Date Published: 30 October 2009
PDF: 5 pages
Proc. SPIE 7494, MIPPR 2009: Multispectral Image Acquisition and Processing, 74942D (30 October 2009); doi: 10.1117/12.833004
Show Author Affiliations
Hai-jun Wei, National Univ. of Defense Technology (China)
Ju-bo Zhu, National Univ. of Defense Technology (China)
Dian-nong Liang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7494:
MIPPR 2009: Multispectral Image Acquisition and Processing
Faxiong Zhang; Faxiong Zhang, Editor(s)

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