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LiDAR based Sensing System Focused on Privacy Preserving and Occlusions

Research Project

Project/Area Number 21K20413
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
Research InstitutionKeio University

Principal Investigator

Yoshioka Kentaro  慶應義塾大学, 理工学部(矢上), 講師 (20910566)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsLiDAR / 3Dセンシング / 関節角度計測 / 見守りセンシング / LiDARセンサ / 人体計測 / プライバシー
Outline of Research at the Start

世界中で高齢化と介護人口の減少が進む中、被介護者の転倒や病気の前兆を検知可能な自動見守りシステムが求められている。カメラを用いた見守りシステム研究は存在するものの、これら従来研究にはプライバシーや死角による見逃しの懸念が残る。
本提案では個人を特定できない3次元データを取得するLiDAR(Light Detection and Ranging)センサを用いる事でプライバシー保全と死角除去可能な見守りセンシングシステムを構築する。特にLiDARを用いた異常検知技術に取組むことで健康異常の検出を目指す。

Outline of Final Research Achievements

This study aimed to develop the fundamental technology of LiDAR sensing for use in the monitoring system necessary for elderly care, which could allow for the preservation of privacy and the acquisition of high-accuracy 3D data. Firstly, we evaluated the error characteristics of nine types of LiDAR sensors, clarifying their individual performances. Next, we automated joint angle measurement using a 3D sensor, demonstrating that high-precision human body measurement is possible. Based on these research results, we are now able to propose optimal selection of LiDAR sensors reflecting the required error accuracy and the optimal construction method for applications. Furthermore, we plan to utilize these research achievements to enhance the reliability and efficiency of human body measurement in medical and sports fields and to pursue new potential applications.

Academic Significance and Societal Importance of the Research Achievements

本研究は、高齢者のケアにおける重要な課題である監視システムの開発に対する新たなアプローチを提供している。これは、LiDARセンシング技術を用いて高精度な3Dデータ取得とプライバシー保護を両立する手法を探求するという学術的意義がある。また、社会的な意義としては、この研究成果が実際に介護現場で活用されると、介護者の負担軽減に繋がり、高齢者の生活の質の向上に寄与する可能性がある。さらに、この技術は医療やスポーツ分野における人体計測の信頼性と効率性を向上させるための新たな道筋を示しており、多様な応用可能性を秘めている。

Report

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

    (10 results)

All 2022 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] University of California Irvine(米国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] A Tutorial and Review of Automobile Direct ToF LiDAR SoCs: Evolution of Next-Generation LiDARs2022

    • Author(s)
      YOSHIOKA Kentaro
    • Journal Title

      IEICE Transactions on Electronics

      Volume: E105.C Issue: 10 Pages: 534-543

    • DOI

      10.1587/transele.2021CTI0002

    • ISSN
      0916-8524, 1745-1353
    • Year and Date
      2022-10-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-Based Current Source: A Highly Digital Robust Current Generator for Switched Capacitor Circuits2022

    • Author(s)
      YOSHIOKA Kentaro
    • Journal Title

      IEICE Transactions on Electronics

      Volume: E105.C Issue: 7 Pages: 324-333

    • DOI

      10.1587/transele.2021CDP0002

    • NAID

      130008139681

    • ISSN
      0916-8524, 1745-1353
    • Year and Date
      2022-07-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] AI を用いた関節可動域自動計測の試み2022

    • Author(s)
      鈴木諒, 吉岡健太郎, 速川湧気,中原龍一, 那須義久,西田圭一郎, 尾崎敏文
    • Organizer
      中国四国整形外科学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 完全Web 化された医工連携の試み:関節可動域自動計測システムの開発2022

    • Author(s)
      速川湧気, 吉岡健太郎, 鈴木諒,中原龍一, 那須義久, 西田圭一郎, 尾崎敏文
    • Organizer
      中国四国整形外科学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 信頼されるLiDARに向けて2022

    • Author(s)
      吉岡健太郎
    • Organizer
      情報処理学会IPSJ連続セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Poster: Towards Large-Scale Measurement Study on LiDAR Spoofing Attacks against Object Detection2022

    • Author(s)
      Sato Takami、Hayakawa Yuki、Suzuki Ryo、Shiiki Yohsuke、Yoshioka Kentaro、Chen Qi Alfred
    • Organizer
      CCS '22: Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] WIP: Practical Removal Attacks on LiDAR-based Object Detection in Autonomous Driving2022

    • Author(s)
      Sato Takami、Hayakawa Yuki、Suzuki Ryo、Shiiki Yohsuke、Yoshioka Kentaro、Chen Qi Alfred
    • Organizer
      Vehicle Sec
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Poster: Practical Removal Attacks on LiDAR-based Object Detection in Autonomous Driving2022

    • Author(s)
      Sato Takami、Hayakawa Yuki、Suzuki Ryo、Shiiki Yohsuke、Yoshioka Kentaro、Chen Qi Alfred
    • Organizer
      NDSS
    • Related Report
      2022 Annual Research Report
  • [Remarks] LiDAR Measurement Study

    • URL

      https://sites.google.com/view/lidar-study/

    • Related Report
      2022 Annual Research Report

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Published: 2021-10-22   Modified: 2024-01-30  

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