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Improvement of Personal Concentration Estimation by Image Analysis

Research Project

Project/Area Number 18K02901
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 09070:Educational technology-related
Research InstitutionUniversity of the Ryukyus

Principal Investigator

KANG Dongshik  琉球大学, 工学部, 准教授 (00315459)

Co-Investigator(Kenkyū-buntansha) 笹澤 吉明  琉球大学, 教育学部, 准教授 (50292587)
小林 稔  琉球大学, 教育学研究科, 教授 (70336353)
Project Period (FY) 2018-04-01 – 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 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords集中度推定 / 授業映像 / 学習姿勢 / 動作譜 / 深層学習 / 候補領域 / 授業改善 / 姿勢推定 / 動作検出 / 集中度 / 理解度 / 可視化 / 映像 / openpose / 授業 / Openpose / 学習 / 姿勢 / 生徒 / 教育工学 / DCNN / 映像解析
Outline of Final Research Achievements

In this research, in order to support teachers in improving their lessons, we explored a method of objectively evaluating the lesson by estimating the degree of concentration from the posture and movement of the students from the video taken during the lesson. Specifically, we first detected candidate regions for student postures and movements (movements) from class videos using a neural network with deep learning. Next, by generating time-series discrete signals (movements), we enabled estimation considering the temporal variation of the degree of concentration. In addition, classifying into three states (concentration, vagueness, boredom) was performed using the NN, and visualization was realized. Finally, we calculated the correlation from each student's movement score, and estimated the influence of the learning group on the individual.

Academic Significance and Societal Importance of the Research Achievements

本研究で提案したシステムは、教室前方に設置した1台のカメラで撮影した映像を入力とし、映像から人物を検出し、検出された人物一人一人に対し学習時の姿勢や動きの度合いを時系列化することで集中度の変化を可視化することが可能である。また、これらをラベリングにより数値化することで、授業時間の経過において、どの時刻からどの程度時間を集中していたかをスコアで表すことが可能になった。授業の時間内に生徒がどのタイミングで、どれ位の集中時間が持続できたかを知ることが大変重要な要素である。本提案システムは教員が自らの授業を振り返るきっかけを提供することができ、授業改善に役立てていただけると考えている。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 2020 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] 沖縄の児童における睡眠教育の実践とその効果2020

    • Author(s)
      笹澤吉明、姜東植、小林稔
    • Journal Title

      日本睡眠環境学会雑誌

      Volume: 15 Pages: 54-60

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Bottom-up Hierarchical Clustering Algorithm with Intersection Points2019

    • Author(s)
      Zahra Nazari, Masooma Nazari, Dongshik Kang
    • Journal Title

      International Journal of Innovative Computing, Information and Control

      Volume: 15 Pages: 291-304

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 授業中の生徒の動作検出とその評価2022

    • Author(s)
      大城 昂希, 姜 東植.
    • Organizer
      和 4 年度 電気学会九州 支部沖縄支所講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Visualization of comprehension by concentration estimation2021

    • Author(s)
      姜東植, 笹澤吉明
    • Organizer
      2021 Biomedical Interface Workshop
    • Related Report
      2021 Research-status Report
  • [Presentation] 集中度の推定による理解度の可視化2021

    • Author(s)
      姜 東植, 笹澤 吉明
    • Organizer
      2021 Biomedical Interface Workshop
    • Related Report
      2020 Research-status Report
  • [Presentation] 映像の姿勢分析に基づいた集中度の可視化2020

    • Author(s)
      姜東植, 長嶺澄, 澤吉明笹3
    • Organizer
      11th バイオメディカルインタフェース・ワークショップ
    • Related Report
      2019 Research-status Report
  • [Presentation] A New Hierarchical Clustering Algorithm with Intersection Points2018

    • Author(s)
      Zahra Nazari, Dongshik Kang
    • Organizer
      2018 5th IEEE Uttar Pradesh Section International Conference on Electrical, Electronics and Computer Engineering (UPCON)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Face Recognition using HAARCASCADE, LBPH, HOG and Linear SVM Object Detector2018

    • Author(s)
      Young Min KIM, Dongshik KANG, Jae Jeong HWANG, Kang Hyeon RHEE
    • Organizer
      The Sixth International Conference on Green and Human Information Technology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Comparative Study of Outlier Detection Algorithms for Machine Learning2018

    • Author(s)
      Zahra Nazari, Seong-Mi Yu, Dongshik Kang, Yousuke Kawachi
    • Organizer
      Proceedings of 2018 2nd International Conference on Deep Learning Technologies
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2024-01-30  

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