{"links":{},"id":2009166,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02009166","sets":["1164:4619:1767693301673:1776415987006"]},"path":["1776415987006"],"owner":"80578","recid":"2009166","title":["イベントカメラを用いた微表情分析"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2026-05-06"},"_buckets":{"deposit":"92487278-82a1-42ec-a509-4de8bd09030f"},"_deposit":{"id":"2009166","pid":{"type":"depid","value":"2009166","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"イベントカメラを用いた微表情分析","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"イベントカメラを用いた微表情分析","subitem_title_language":"ja"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"CVIM","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2026-05-06","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"京都工芸繊維大学"},{"subitem_text_value":"京都工芸繊維大学／理化学研究所ガーディアンロボットプロジェクト"},{"subitem_text_value":"京都工芸繊維大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Kyoto Institute of Technology","subitem_text_language":"en"},{"subitem_text_value":"Kyoto Institute of Technology / Guardian Robot Project, RIKEN","subitem_text_language":"en"},{"subitem_text_value":"Kyoto Institute of Technology","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/2009166/files/IPSJ-CVIM26246013.pdf","label":"IPSJ-CVIM26246013.pdf"},"date":[{"dateType":"Available","dateValue":"2028-05-06"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CVIM26246013.pdf","filesize":[{"value":"2.8 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"20"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"3567fa56-1926-4027-80b4-0ba6795d3b5b","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2026 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"大志万,歩武"}]},{"creatorNames":[{"creatorName":"河野,誠也"}]},{"creatorNames":[{"creatorName":"延原,章平"}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11131797","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8701","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"微表情は持続時間が極めて短く，従来のカメラではダイナミクスを十分に捉えきれない．代替として高時間分解能なイベントカメラが注目されるが，頭部の自然な剛体運動によるノイズが微細な表情シグナルと混在する課題があった．本研究では，イベントストリームから剛体運動成分を物理的に除外し，純粋な微表情ダイナミクスのみを抽出する手法を提案する．3次元顔モデル（FLAME）のトラッキングにより高精度な頭部姿勢を推定し，逆ワーピングと局所的な分散評価を用いて剛体成分を動的にマスクする．独自データセットを用いた評価により，提案手法が表情シグナルを保持しつつ剛体ノイズを選択的に除去できることを確認した．抽出された表情シグナルを軽量なCNNに入力し，自然な笑いと作り笑いの分類で識別精度89.4%を達成したことで，表情由来成分選択の重要性とイベントカメラの優位性を定量的に示した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告コンピュータビジョンとイメージメディア（CVIM）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2026-05-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"13","bibliographicVolumeNumber":"2026-CVIM-246"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"created":"2026-04-28T09:28:23.565954+00:00","updated":"2026-04-28T09:28:28.005477+00:00"}