Stereo radargrammetry using airborne SAR images with parameter optimization

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

研究成果: Conference contribution

抄録

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).

本文言語English
ホスト出版物のタイトルProceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ページ258-263
ページ数6
ISBN(電子版)9781467372961
DOI
出版ステータスPublished - 2015 10 23
イベント5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015 - Singapore, Singapore
継続期間: 2015 9 12015 9 4

出版物シリーズ

名前Proceedings 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
国/地域Singapore
CitySingapore
Period15/9/115/9/4

ASJC Scopus subject areas

  • 信号処理
  • 器械工学

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