{"created":"2025-01-19T01:12:50.142121+00:00","updated":"2025-01-19T17:42:51.207661+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00211695","sets":["1164:3206:10513:10610"]},"path":["10610"],"owner":"44499","recid":"211695","title":["NS-FDTD法を用いた毛髪の構造発色シミュレーション"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-06-18"},"_buckets":{"deposit":"5d0ee9b6-96f3-4d2b-91e6-5a7c98fb3770"},"_deposit":{"id":"211695","pid":{"type":"depid","value":"211695","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"NS-FDTD法を用いた毛髪の構造発色シミュレーション","author_link":["538252","538251"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"NS-FDTD法を用いた毛髪の構造発色シミュレーション"}]},"item_type_id":"4","publish_date":"2021-06-18","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"筑波大学"},{"subitem_text_value":"筑波大学"}]},"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/211695/files/IPSJ-CG21182003.pdf","label":"IPSJ-CG21182003.pdf"},"date":[{"dateType":"Available","dateValue":"2023-06-18"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CG21182003.pdf","filesize":[{"value":"776.8 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"28"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"508f5e5b-2fa7-4bca-9a4c-93310fd46e6f","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"土肥野, 真也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"蔡, 東生"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10100541","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":"2188-8949","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"従来の CG 映像に使用されているレンダリング手法や理論計算では，光の散乱という複雑な現象をとらえるときに膨大な計算量を必要とする特性上，表面反射光と背面反射光の 2 要素のみを考慮していることがほとんどである．人間の毛髪の精巧な CG はゲームや映像作品にとって需要の高いものであり，微細構造による光学効果を考慮したリアリティーの高い CG を作ることは有意義である．人間の毛髪は微細な構造を有しており，ナノスケールでの光の干渉や散乱が繰り返されている．毛髪の艶はこれらの要素が重なり合って表現されている．本研究では，微細構造を伝搬する光を捉えるために高精度な NS-FDTD 法を用いて毛髪の構造発色の解析を行う．これらの電磁場解析アルゴリズムは構造発色の解析にも用いられている [1]．本研究では，2 次元における NS-FDTD 法を用いて髪の毛の微細構造を考慮した光学効果を得る計算を行い，得られた数値を既存のレンダリングシステムを拡張して CG へと反映させた．今後の展望として，2 次元の NS-FDTD 法を 3 次元へと拡張することや，拡張したレンダリング手法をより構造発色の効果を反映させるために確立させる必要があることが分かった．また，一連の数値計算で得た値を実際の毛髪の光散乱と比較する手法を検討する必要がある．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告コンピュータグラフィックスとビジュアル情報学（CG）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-06-18","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicVolumeNumber":"2021-CG-182"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":211695,"links":{}}