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画像処理技術を用いた模擬授業の振り返り支援システムの提案

画像処理技術を用いた模擬授業の振り返り支援システムの提案

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カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2015/12/01

タイトル(英語): A Study of a Supporting System for Reviewing Trial Lessons Using Image Processing Technologies

著者名: 小西 拓也(愛知工業大学大学院経営情報科学研究科),澤野 弘明(愛知工業大学情報科学部),坂本 將暢(愛知工業大学基礎教育センター),中條 直也(愛知工業大学情報科学部),鈴木 裕利(中部大学工学部),土屋 健(諏訪東京理科大学経営情報学部),小柳 惠一(早稲田大学大学院情報生産システム研究科)

著者名(英語): Takuya Konishi (Graduate School of Business Administration and Computer Science, Aichi Institute of Technology), Hiroaki Sawano (Faculty of Information Science, Aichi Institute of Technology), Masanobu Sakamoto (Center for General Education, Aichi Institute of Technology), Naoya Chujo (Faculty of Information Science, Aichi Institute of Technology), Yuri Suzuki (College of Engineering, Chubu University), Takeshi Tsuchiya (Faculty of Business Administration and Information, Tokyo University of Science, Suwa), Keiichi Koyanagi (The Graduate School of Information, Production and Systems, Waseda University)

キーワード: 画像処理,教職課程,模擬授業  Image processing,Teacher-training course,Trial lesson

要約(英語): We propose a review supporting system of trial lessons with image processing techniques. Candidates of a high/junior schoolteacher practice in the trial lesson. A subjective evaluation from the other candidates is used as a feedback of the lesson. However, the quality of the feedback result depends on the skill and experience of the evaluators. Review using a recorded video of the lesson can improve the skill of the candidate, however this method requires a long time. Therefore, we focus on an objective evaluation from a recorded video, in which the behavior is visualized in static images. The system provides the three processes, visualization of teacher movement, extraction of writing on blackboard, and blind spot alert. Our implemental approach is to calculate an optical flow indicating human movement, and to draw segment for visualization. An exclusive OR between previous and target frames is calculated for detecting a region of writing. The blind spot by the candidate is estimated with the human position and the region of the writing, and an alert is provided as visual information in the timing. The accuracy of the alert timing are about 80% of the precision and recall with the author visual judgment. In addition, some positive comments are obtained in a questionnaire result, and the availability is indicated in this paper.

本誌: 電気学会論文誌C(電子・情報・システム部門誌) Vol.135 No.12 (2015) 特集:電気・電子・情報関係学会東海支部連合大会

本誌掲載ページ: 1509-1516 p

原稿種別: 論文/日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/135/12/135_1509/_article/-char/ja/

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