{"created":"2025-01-18T22:48:16.547274+00:00","updated":"2025-01-23T00:47:28.166717+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00014469","sets":["581:781:789"]},"path":["789"],"owner":"1","recid":"14469","title":["照明条件および反射係数未知の場合の筒状物体の形状復元"],"pubdate":{"attribute_name":"公開日","attribute_value":"1993-05-15"},"_buckets":{"deposit":"81d835d8-788e-43d6-bf3b-9f0757227f28"},"_deposit":{"id":"14469","pid":{"type":"depid","value":"14469","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"照明条件および反射係数未知の場合の筒状物体の形状復元","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"照明条件および反射係数未知の場合の筒状物体の形状復元"},{"subitem_title":"Cylindrical Shape from Contour and Shading without Knowledge of Lighting Conditions or Surface Albedo","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"論文","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"1993-05-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"大阪大学工学部電子制御機械工学科"},{"subitem_text_value":"大阪大学工学部電子制御機械工学科"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Department of Mechanical Engineering for Computer - Controlled Machinery, Faculty of Engineering, Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Department of Mechanical Engineering for Computer - Controlled Machinery, Faculty of Engineering, Osaka University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/14469/files/IPSJ-JNL3405008.pdf"},"date":[{"dateType":"Available","dateValue":"1995-05-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL3405008.pdf","filesize":[{"value":"1.1 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":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"3af5fde6-6d37-42d8-a51d-99165121a18e","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 1993 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"浅田, 稔"},{"creatorName":"中村, 恭之"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Mlnoru, Asada","creatorNameLang":"en"},{"creatorName":"Takayuki, Nakamura","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"従来の明度情報からの形状復元手法では、面の反射係数や照明条件を既知としているものが多い。本論文では，明度情報と輪郭線情報から筒状物体の形状を復元する手法の1つとして、面の反射係数や照明条件（方向と照明光の強さ）の知識を必要としない手法を提案し、実験を通してその有効性を示す。一般に明度情報だけでは、面の反射係数ならびに照明条件の知識なしには、筒状物体の形状を唯一に復元できない。これに対し、輪郭線情報は、筒状物体の形状と画面上の断面形状の間の関係に1つの拘束を与える、これら明度情報と輪郭線情報を統合することにより，筒状物体の断面形状を唯一に決定できる。まず最初に、入力画像を、局所的な明度勾配分布により球面、筒面、平面に分類する、次に、筒状面上の濃度勾配から母線の方向を得て、それを基に画面上の墓準座標系を設定する。最大明度母線は、明度解析および、明度と輪郭線情報統合の際の拘束式を与え、これから筒状物体の断面形状を唯一に決定できる。ただし、断面の向きと筒状物体の傾きの間に1自由度残る。本手法を合成画像と実画像に適用し、その有効性を示す。☆本研究の墓本アルゴリズムは第一著者が、米国メリーランド大学に滞在中に考案したものであり、惰報処理学会コンピュータビジョン研究会に発表済みである。またこの発表に対して平成元年度の研究奨励賞を受賞している。","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"891","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"884","bibliographicIssueDates":{"bibliographicIssueDate":"1993-05-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicVolumeNumber":"34"}]},"relation_version_is_last":true,"item_2_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"パターン処理"}]},"weko_creator_id":"1"},"id":14469,"links":{}}