{"updated":"2025-01-19T15:40:38.052303+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00216950","sets":["1164:4619:10826:10881"]},"path":["10881"],"owner":"44499","recid":"216950","title":["微分可能レンダリングによるコースティクス画像からの鏡面反射物体の形状復元"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-03-03"},"_buckets":{"deposit":"f9b2ce9a-bcf9-4e05-84d1-c4b741f5ea1c"},"_deposit":{"id":"216950","pid":{"type":"depid","value":"216950","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"微分可能レンダリングによるコースティクス画像からの鏡面反射物体の形状復元","author_link":["561082","561083","561081"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"微分可能レンダリングによるコースティクス画像からの鏡面反射物体の形状復元"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"セッション3-B ","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-03-03","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"九州大学"},{"subitem_text_value":"千葉大学"},{"subitem_text_value":"九州大学"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Chiba Uniersity","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/216950/files/IPSJ-CVIM22229019.pdf","label":"IPSJ-CVIM22229019.pdf"},"date":[{"dateType":"Available","dateValue":"2024-03-03"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CVIM22229019.pdf","filesize":[{"value":"2.2 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":"0044858a-baf3-40eb-959d-e62f9491ac95","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岩口, 尭史"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"久保, 尋之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"川崎, 洋"}],"nameIdentifiers":[{}]}]},"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":"本発表ではすりガラスなどの拡散体の背後にある鏡面反射物体形状の再構成に取り組む．拡散体背後の物体は環境光の下ではボケて観測されるため形状の復元は困難だが，拡散体上の微小領域に光源を照射すると，拡散板の表面には反射による集光模様であるコースティックスが現れる．本論文では，光学現象を考慮した微分可能レンダリングによりコースティクスを解析し拡散板の背後にある物体の表面法線を復元する方法を提案する．提案するレンダリング手法はメッシュ表現を利用するため，レンダリング画像だけでなく，幾何学的なパラメータを対象に最適化を行うことができる．実験では，反射光分布から形状を復元し，反射光の位置から幾何学的パラメータを最適化することが可能であることを示す．さらに，正確なコースティクスの再現が要求される Goal-based caustics へ応用しレンダリング能力を示す．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"4","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":"2022-03-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"19","bibliographicVolumeNumber":"2022-CVIM-229"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:17:27.667558+00:00","id":216950,"links":{}}