Geo-spatial Information Science

, Volume 2, Issue 1, pp 30–34 | Cite as

The study on automatic registration of InSAR images

  • Liao Mingsheng
  • Zhang Zuxun
  • Zhang Li
  • Zhang Jianqing


Interferometric Synthetic Aperture Radar (InSAR) allows production of high resolution DEM and detection of small earth motions using multiple pass SAR data sets obtained by remote sensing satellite. But the whole process has not yet reached sufficient robustness to warrant automated DEM production as commonly produced by stereovision with optical images. The automatic algorithm for precision registration is one of the bottlenecks in InSAR data processing. In this paper, an automatic approach with multi-step image matching algorithm is presented. All procedures are automatically implemented. The experiment is carried out successfully with SIR-C/L-band InSAR data. The triangular piecewise rectification is also advanced in reducing local distortion between the images and processing the large scene image. The primary result has prospect in the precision registration for the repeat-track InSAR data and reveals the potential of the presented automatic strategy.

Key words

interferometry radar registration image matching 


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Copyright information

© Wuhan University of Technology 1999

Authors and Affiliations

  • Liao Mingsheng
    • 1
  • Zhang Zuxun
    • 1
  • Zhang Li
    • 1
  • Zhang Jianqing
    • 1
  1. 1.National Laboratory for Information Engineering in Surverying, Mapping and Remote SensingWTUSMWuhanChina

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