Stereo radargrammetry using airborne SAR images with parameter optimization

Daiki Maruki, Shuji Sakai, Koichi Ito, Takafumi Aoki, Jyunpei Uemoto, Seiho Uratsuka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Elevation measurement using Synthetic Aperture Radar (SAR) is one of crucial applications in remote sensing, since the use of SAR in elevation measurement makes it possible to measure a wide range of planar area. Most of conventional methods need Ground Control Points (GCPs) to achieve accurate 3D measurement, where GCP acquisition is a time-consuming and cost-intensive task. Addressing the above problem, this paper proposes a stereo radargrammetry method using airborne SAR images without GCP. We define a new sensor model with only parameters provided in the SAR image acquisition process which derives from the principle of stereo vision. We employ bundle adjustment so as to minimize reprojection errors in 3D measurement, since the proposed sensor model is based on stereo vision. We also employ Phase-Only Correlation (POC), which is a sub-pixel image matching method using phase information obtained by Discrete Fourier Transform (DFT) of given images, to obtain dense and accurate correspondence between two SAR images. Through an experiment using SAR images, we demonstrate that the proposed method using only online parameters exhibits efficient performance of radargrammetry compared with Interferommetric SAR (InSAR).

Original languageEnglish
Title of host publicationProceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages258-263
Number of pages6
ISBN (Electronic)9781467372961
DOIs
Publication statusPublished - 2015 Oct 23
Event5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015 - Singapore, Singapore
Duration: 2015 Sep 12015 Sep 4

Publication series

NameProceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015

Other

Other5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
CountrySingapore
CitySingapore
Period15/9/115/9/4

Keywords

  • InSAR
  • SAR
  • bundle adjustment
  • radargrammetry

ASJC Scopus subject areas

  • Signal Processing
  • Instrumentation

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  • Cite this

    Maruki, D., Sakai, S., Ito, K., Aoki, T., Uemoto, J., & Uratsuka, S. (2015). Stereo radargrammetry using airborne SAR images with parameter optimization. In Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015 (pp. 258-263). [7306202] (Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APSAR.2015.7306202