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D-II, 情報・システム, II-情報処理"}]}]}, "item_10001_description_36": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "X線多軌道断層装置の検出器をディジタル化することによって得られる多方向からの投影像を，走査軌跡に従って再構成空間に埋め戻す逆投影処理を行うことにより，1回の走査によって得られた投影像から被検査体の多くの断面を再構成することができる．本論文では，逆投影することにより求めた単純逆投影像から，逆フィルタの手法を用いて注目断層面以外の断層面からのぼけの混入を軽減し，より正確な被検査体の3次元再構成を行う手法を提案する．逆フィルタ伝達関数は，単純逆投影処理のインパルスレスポンスから解析的に導出した．また，投影像群に含まれる被検査体の空間周波数成分の局在性を投影断面定理に基づいて明らかにし，その点を考慮した逆フィルタ処理によりアーチファクトの発生を抑えた．また，X線多軌道断層装置によって実際にファントムの撮影を行って得られた投影像にこのアルゴリズムを適用し再構成を行ったところ良好な結果を得た．", "subitem_description_type": "Other"}]}, "item_10001_description_38": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_10001_full_name_27": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "4831", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Iwata, Akira"}]}, {"nameIdentifiers": [{"nameIdentifier": "8515", "nameIdentifierScheme": "WEKO"}, {"nameIdentifier": "1000000219396 ", "nameIdentifierScheme": "NRID", "nameIdentifierURI": "http://rns.nii.ac.jp/nr/1000000219396 "}], "names": [{"name": "Matsuo, Hiroshi"}]}]}, "item_10001_publisher_29": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Institute of Electronics, Information and Communication Engineers"}]}, "item_10001_source_id_30": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "09151923", "subitem_source_identifier_type": "ISSN"}]}, "item_10001_source_id_32": {"attribute_name": "書誌レコードID（NCID）", "attribute_value_mlt": [{"subitem_source_identifier": "AN1007132X", "subitem_source_identifier_type": "NCID"}]}, "item_10001_version_type_33": {"attribute_name": "著者版フラグ", "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": "岩田, 彰"}, {"creatorName": "イワタ, アキラ", "creatorNameLang": "ja-Kana"}], "nameIdentifiers": [{"nameIdentifier": "4831", "nameIdentifierScheme": "WEKO"}]}, {"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": "堀場, 勇夫"}], "nameIdentifiers": [{"nameIdentifier": "10733", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "魏, 回"}], "nameIdentifiers": [{"nameIdentifier": "11549", "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", "download_preview_message": "", "file_order": 0, "filename": "J72-D2_649.pdf", "filesize": [{"value": "972.2 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensefree": "Copyright(c)1989 IEICE　http://search.ieice.org/index.html", "licensetype": "license_free", "mimetype": "application/pdf", "size": 972200.0, "url": {"label": "本文_fulltext", "url": "https://nitech.repo.nii.ac.jp/record/3986/files/J72-D2_649.pdf"}, "version_id": "3a103f87-db30-4e03-99e5-6014143822c8"}]}, "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": "逆フィルタ法によるディジタル多断層再構成アルゴリズム", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "逆フィルタ法によるディジタル多断層再構成アルゴリズム"}]}, "item_type_id": "10001", "owner": "3", "path": ["31"], "permalink_uri": "https://nitech.repo.nii.ac.jp/records/3986", "pubdate": {"attribute_name": "公開日", "attribute_value": "2012-05-11"}, "publish_date": "2012-05-11", "publish_status": "0", "recid": "3986", "relation": {}, "relation_version_is_last": true, "title": ["逆フィルタ法によるディジタル多断層再構成アルゴリズム"], "weko_shared_id": 3}