{"updated":"2025-01-19T14:36:41.776295+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00220302","sets":["1164:5336:10887:11018"]},"path":["11018"],"owner":"44499","recid":"220302","title":["ニューラル場表現と表情類似度に基づく4次元ポートレート生成法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-09-29"},"_buckets":{"deposit":"9d9abdf9-d88d-40e4-8751-33ca97bb27f9"},"_deposit":{"id":"220302","pid":{"type":"depid","value":"220302","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"ニューラル場表現と表情類似度に基づく4次元ポートレート生成法","author_link":["575945","575947","575944","575946","575949","575948"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ニューラル場表現と表情類似度に基づく4次元ポートレート生成法"},{"subitem_title":"4D portrait generation based on neural radiance field and facial expression similarity","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"計測・認証2","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2022-09-29","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"筑波大学システム情報工学研究群"},{"subitem_text_value":"筑波大学計算科学研究センター"},{"subitem_text_value":"筑波大学計算科学研究センター"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Degree programs in Systems and Information Engineering, University of Tsukuba","subitem_text_language":"en"},{"subitem_text_value":"Center for Computational Sciences, University of Tsukuba","subitem_text_language":"en"},{"subitem_text_value":"Center for Computational Sciences, University of Tsukuba","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/220302/files/IPSJ-EC22065038.pdf","label":"IPSJ-EC22065038.pdf"},"date":[{"dateType":"Available","dateValue":"2024-09-29"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-EC22065038.pdf","filesize":[{"value":"2.3 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":"40"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"3bddf169-8c59-4801-911b-cb9a674b86cb","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":"木村, 文哉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"宍戸, 英彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"北原, 格"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Fumiya, Kimura","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hidehiko, Shishido","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Itaru, Kitahara","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12049625","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":"2188-8914","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"This research aims to generate 4D portrait of a person that can be playback over a long time period. 4D portrait is a free-viewpoint video of a person with temporal changes in facial expression. In our proposed method, the parameters that represent facial expressions and head poses of a person are obtained from a video captured by a monocular RGB camera with continuously changing the viewpoint. Then, a neural radiance field (NeRF) is trained from the captured video and estimated parameters. Using this radiance field, 4D portrait is generated based on the similarity of the person's facial expressions. This paper describes a method for determining transition frames based on facial expression similarity to enable long playback.","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"This research aims to generate 4D portrait of a person that can be playback over a long time period. 4D portrait is a free-viewpoint video of a person with temporal changes in facial expression. In our proposed method, the parameters that represent facial expressions and head poses of a person are obtained from a video captured by a monocular RGB camera with continuously changing the viewpoint. Then, a neural radiance field (NeRF) is trained from the captured video and estimated parameters. Using this radiance field, 4D portrait is generated based on the similarity of the person's facial expressions. This paper describes a method for determining transition frames based on facial expression similarity to enable long playback.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告エンタテインメントコンピューティング（EC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-09-29","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"38","bibliographicVolumeNumber":"2022-EC-65"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:20:20.858426+00:00","id":220302,"links":{}}