{"created":"2021-03-01T06:16:23.771625+00:00","id":13468,"links":{},"metadata":{"_buckets":{"deposit":"f2dfec88-36b7-4248-835f-d2a0309a5ebc"},"_deposit":{"id":"13468","owners":[],"pid":{"revision_id":0,"type":"depid","value":"13468"},"status":"published"},"_oai":{"id":"oai:soar-ir.repo.nii.ac.jp:00013468","sets":["1309:1310"]},"author_link":["41081","41082","41083","41084","41085"],"item_1628147817048":{"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_6_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"CT Image Reconstruction Algorithm to Reduce Metal Artifact"}]},"item_6_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"724","bibliographicPageEnd":"1894","bibliographicPageStart":"1888","bibliographicVolumeNumber":"72","bibliographic_titles":[{"bibliographic_title":"日本機械学会論文集. A編"}]}]},"item_6_description_20":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Micro-computed tomography (μCT) is quite useful for nondestructive evaluation of devices with complicated internal structures. However, large difference in X-ray absorption coefficients of materials produces streak and star pattern artifacts in the CT images. The artifact, which is called \"metal artifact\", makes it difficult to inspect the image of the device. This study aims to develop a new reconstruction method to reduce the artifacts from the images. In this paper, we firstly point out the cause of the artifacts using CT data of a sample. Next, we propose a CT reconstruction algorithm to reduce the artifacts. The basic idea of the algorithm is to correct the projection data. Shapes of high density parts such as metals are extracted by a threshold method and projection data are replaced to consistent values. We apply the method to some devices and confirm availability for the nondestructive inspections.","subitem_description_type":"Abstract"}]},"item_6_description_30":{"attribute_name":"資源タイプ（コンテンツの種類）","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_6_description_5":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"日本機械学会論文集. A編. 72(724):1888-1894 (2006)","subitem_description_type":"Other"}]},"item_6_link_3":{"attribute_name":"信州大学研究者総覧へのリンク","attribute_value_mlt":[{"subitem_link_text":"小関, 道彦","subitem_link_url":"http://soar-rd.shinshu-u.ac.jp/profile/ja.ZenFupLV.html"}]},"item_6_publisher_4":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"社団法人日本機械学会"}]},"item_6_relation_51":{"attribute_name":"異版である","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://ci.nii.ac.jp/naid/110006153359/","subitem_relation_type_select":"URI"}}]},"item_6_rights_62":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (c) 2006 社団法人 日本機械学会"},{"subitem_rights":"本文データは学協会の許諾に基づきCiNiiから複製したものである"}]},"item_6_source_id_35":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0387-5008","subitem_source_identifier_type":"ISSN"}]},"item_6_source_id_40":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN0018742X","subitem_source_identifier_type":"NCID"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小関,  道彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"橋本,  周平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"佐藤,  慎平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"木村,  仁"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"伊能,  教夫"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2015-09-28"}],"displaytype":"detail","filename":"110006153359.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"110006153359.pdf","url":"https://soar-ir.repo.nii.ac.jp/record/13468/files/110006153359.pdf"},"version_id":"f52e58fb-6420-4cb4-875f-fcc62f47198c"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Nondestructive Inspection","subitem_subject_scheme":"Other"},{"subitem_subject":"Shape Measurement","subitem_subject_scheme":"Other"},{"subitem_subject":"Image Processing","subitem_subject_scheme":"Other"},{"subitem_subject":"X-ray CT","subitem_subject_scheme":"Other"},{"subitem_subject":"Metal Artifact","subitem_subject_scheme":"Other"},{"subitem_subject":"Inverse Problem","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"X線CT画像におけるメタルアーチファクトの低減アルゴリズム","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"X線CT画像におけるメタルアーチファクトの低減アルゴリズム","subitem_title_language":"ja"}]},"item_type_id":"6","owner":"1","path":["1310"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2010-01-21"},"publish_date":"2010-01-21","publish_status":"0","recid":"13468","relation_version_is_last":true,"title":["X線CT画像におけるメタルアーチファクトの低減アルゴリズム"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-14T04:03:50.285405+00:00"}