{"created":"2023-05-15T12:35:07.902048+00:00","id":3962,"links":{},"metadata":{"_buckets":{"deposit":"9ff6635d-3dae-4d95-80c5-aae2b60faf74"},"_deposit":{"created_by":91,"id":"3962","owners":[91],"pid":{"revision_id":0,"type":"depid","value":"3962"},"status":"published"},"_oai":{"id":"oai:nitech.repo.nii.ac.jp:00003962","sets":["31"]},"author_link":["8515","4831","8515","4831","10733","4832"],"item_10001_alternative_title_24":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"ギャク　フィルタホウ　ニヨル　コーンビーム　Xセン　CTゾウ　サイコウセイホウ　","subitem_alternative_title_language":"ja-Kana"},{"subitem_alternative_title":"Reconstruction algorithm for cone beam X-ray CT using inverse filtering.","subitem_alternative_title_language":"en"}]},"item_10001_biblio_info_28":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1988-11-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"11","bibliographicPageEnd":"2465","bibliographicPageStart":"2457","bibliographicVolumeNumber":"J71-D","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌. D, 情報・システム","bibliographic_titleLang":"ja"}]}]},"item_10001_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"コーンビームX線源と2次元検出器を被検査体間に対向して配置し，双方を1回転して計測した投影データから，逆フィルタの手法を用いて被検査体の3次元的な吸収係数の分布を再構成する方法を提案する．これらは不完全投影データからの再構成問題となるが，本論文では，投影像をそのまま投影軌跡に沿って逆投影することにより算出した単純逆投影像に，逆フィルタの手法を適用し，被検査体の3次元的な吸収係数分布像を求める手法を示す．本来，設定した計測幾何学系では，インパルス応答が空間依存となるため逆フィルタ処理を行うことができない．そこで不均一サンプリング座標系を設定し，インパルス応答を空間不変に変換した．また逆フィルタ関数は，インパルス応答の回転軸に対する対称性を利用し，Hankel変換により導出した．更に逆フィルタ処理を安定化させるために，投影像の不完全性の周波数空間での場所依存性を考慮した窓関数を用いた．最後に本再構成方法の有効性を計算機シミュレーションによって確認した．","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_10001_full_name_27":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"8515","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000000219396 ","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000000219396 "}],"names":[{"name":"Matsuo, Hiroshi"}]},{"nameIdentifiers":[{"nameIdentifier":"4831","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Iwata, Akira"}]}]},"item_10001_publisher_29":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Institute of Electronics, Information and Communication Engineers","subitem_publisher_language":"en"}]},"item_10001_source_id_30":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0913-5731","subitem_source_identifier_type":"ISSN"}]},"item_10001_source_id_32":{"attribute_name":"item_10001_source_id_32","attribute_value_mlt":[{"subitem_source_identifier":"AN10013389","subitem_source_identifier_type":"NCID"}]},"item_10001_version_type_33":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松尾, 啓志"},{"creatorName":"マツオ, ヒロシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"8515","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000000219396 ","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000000219396 "}]},{"creatorNames":[{"creatorName":"岩田, 彰"},{"creatorName":"イワタ, アキラ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"4831","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"堀場, 勇夫"}],"nameIdentifiers":[{"nameIdentifier":"10733","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鈴村, 宣夫"}],"nameIdentifiers":[{"nameIdentifier":"4832","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-01-23"}],"displaytype":"detail","filename":"J71-D_2457.pdf","filesize":[{"value":"993.4 kB"}],"format":"application/pdf","license_note":"Copyright(c)1988 IEICE　http://search.ieice.org/index.html","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文_fulltext","url":"https://nitech.repo.nii.ac.jp/record/3962/files/J71-D_2457.pdf"},"version_id":"3c09c8e5-302d-48ce-aca8-7bc1b470dfba"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"逆フィルタ法によるコ-ンビ-ムX線CT像再構成法","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"逆フィルタ法によるコ-ンビ-ムX線CT像再構成法","subitem_title_language":"ja"}]},"item_type_id":"10001","owner":"91","path":["31"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2012-11-07"},"publish_date":"2012-11-07","publish_status":"0","recid":"3962","relation_version_is_last":true,"title":["逆フィルタ法によるコ-ンビ-ムX線CT像再構成法"],"weko_creator_id":"91","weko_shared_id":-1},"updated":"2025-03-13T00:32:01.988255+00:00"}