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Synthetic Aperture Radar Data based Man-Made Target Interpretation Using ASV Feature Parameters

Research Project

Project/Area Number 20K14749
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionThe University of Electro-Communications

Principal Investigator

Shang Fang  電気通信大学, 大学院情報理工学研究科, 准教授 (90779050)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords合成開口レーダ / 都市観測 / 都市解析 / 偏波 / 人工物 / 四元数ニューラルネットワーク / 人工物エリア解析
Outline of Research at the Start

合成開口レーダ(SAR)は資源探査や災害監視等様々な分野に重要な貢献をもたらしてきた。しかし、従来解析手法では、人工物観測に実用化可能な解析法の開発は極めて困難である。申請者は各従来法と全く異なり、革新的な視点によるAveraged Stokes Vector (ASV) に基づく解析法を提案した。当該方法が従来法を凌駕する人工物検出性能を示すことを実証した。本課題では、ASV 特徴量を用いて、検出することのみならず、従来は困難である人工物の幾何形状、建物の向き、および分布密度等の推定も可能となる高機能化解析法の開発を目指す。

Outline of Final Research Achievements

The results of the three topics are summarized as follows. (a) The fluctuation of degree of polarization is used and city area recognizing method with high accuracy is proposed. In the result, the buildings, surface target and boundary target can be also identified. The result has been published in top journal of remote sensing field. Analysis based and neural network based orientation angle estimating method is proposed, respectively. The result is improving and planned to submit to a journal. (c) Method for estimating scale and distributing density of buildings are proposed. Commercial area and residential area can be distinguished. The result is presented in conferences.
(d) Besides the planed topics, the observing and analyzing method on the damage level of building area after earthquake is also proposed.

Academic Significance and Societal Importance of the Research Achievements

衛星搭載合成開口レーダは昼夜と天候を問わず観測可能であり、人工物観測領域に大きく期待されている。しかし、従来法における複雑形態に対する解析能力が不足で、人工物観測に実用化可能な解析法の開発は極めて困難である。本研究では、既に構築したASV特徴量プールを活用することに基づいて、検出のみならず、従来は困難である人工物の幾何形状、建物の向き、および分布密度等の推定も可能となる高機能化人工物解析法の開発を実現した。本研究は、将来的に、地球環境保持や災害対応等の領域に著しい貢献をもたらすと考える。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021 2020

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results)

  • [Journal Article] Built-Up Area Detection based on Degree of Polarization Analysis in Frequency Domain Using Fully PolSAR Data2023

    • Author(s)
      Fang Shang
    • Journal Title

      IEEE transactions on Geoscience and Remote Sensing

      Volume: to appear Pages: 1-12

    • DOI

      10.1109/tgrs.2023.3276001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coniferous and Broad-Leaved Forest Distinguishing Using L-Band Polarimetric SAR Data2021

    • Author(s)
      Shang Fang、Saito Taiga、Ohi Saya、Kishi Naoto
    • Journal Title

      IEEE Transactions on Geoscience and Remote Sensing

      Volume: 59 Issue: 9 Pages: 7487-7499

    • DOI

      10.1109/tgrs.2020.3032468

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Detection and Analysis of Collapsed Buildings after the Kumamoto Earthquake by Using ALOS2-PALSAR2 Data2023

    • Author(s)
      Fang Shang, Momoko Sumida, Koki Oketani, Naoto Kishi
    • Organizer
      2023 IEEE International Geoscience and Remote Sensing Symposium IGARSS
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 全偏波合成開口レーダ7成分分解法を用いた地震被害区域の識別2023

    • Author(s)
      住田桃子、尚方、來住直人
    • Organizer
      電子情報通信学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 合成開口レーダデータを用いた機械学習による建物の向き・角度の判別2023

    • Author(s)
      岡庭康浩、尚方、來住直人
    • Organizer
      電子情報通信学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Frequency-Domain Analysis of DoP Information for Urban Area Interpretation Using Fully Polarimetric SAR Data2022

    • Author(s)
      Fang Shang
    • Organizer
      2022 IEEE International Geoscience and Remote Sensing Symposium IGARSS
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Averaged Stokes Vector Features Based Man-Made Targets Analysis Using PolSAR Data2021

    • Author(s)
      Fang Shang, Natsuki Fujiwara, Naoto Kishi
    • Organizer
      2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Calibration of ground slope effect on Forest Observation using L-band Synthetic Aperture Radar data2021

    • Author(s)
      Y Watanabe, F Shang, N Kishi
    • Organizer
      Y Watanabe, F Shang, N Kishi
    • Related Report
      2021 Research-status Report
  • [Presentation] PolSAR data based high-rise building and low-rise building dominant areas Classification using quaternion neural networks2020

    • Author(s)
      Natsuki Fujiwara, Fang Shang, Naoto Kishi
    • Organizer
      IEICE SANE
    • Related Report
      2020 Research-status Report
  • [Presentation] Discussion on Building Orientation Estimation Using Polarimetric Synthetic Aperture Radar Data2020

    • Author(s)
      Fang Shang
    • Organizer
      2020 IEEE International Geoscience and Remote Sensing Symposium
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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