{"created":"2023-07-25T11:05:41.160677+00:00","id":8999,"links":{},"metadata":{"_buckets":{"deposit":"8c22238e-9b3c-4a0c-bbc0-bd51d0df87f2"},"_deposit":{"created_by":4,"id":"8999","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"8999"},"status":"published"},"_oai":{"id":"oai:nipr.repo.nii.ac.jp:00008999","sets":["1259:906:1236:1117"]},"author_link":["20471","65587","20475","65586","20472","1911"],"item_1_alternative_title_5":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_alternative_title":"オーロラ トモグラフィ ニオケル サイコウセイ アルゴリズム ノ スウチ シミュレーション ニヨル ケントウ"}]},"item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1997-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"496","bibliographicPageStart":"469","bibliographicVolumeNumber":"41","bibliographic_titles":[{"bibliographic_title":"南極資料"},{"bibliographic_title":"Antarctic Record","bibliographic_titleLang":"en"}]}]},"item_1_creator_6":{"attribute_name":"著者名(日)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"浦島, 智"},{"creatorName":"ウラシマ, アキラ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"藤田, 淳文"},{"creatorName":"フジタ, アツフミ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"麻生, 武彦"},{"creatorName":"アソウ, タケヒコ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Urashima, Akira","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Fujita, Atsufumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Aso, Takehiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_1_description_1":{"attribute_name":"ページ属性","attribute_value_mlt":[{"subitem_description":"P(論文)","subitem_description_type":"Other"}]},"item_1_description_11":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"我々は1987年以降, オーロラ観測画像よりその発光強度分布を求める研究を行ってきた。近年, 国際共同観測によりこれまでのステレオ観測に比し, 多点での観測による同時観測画像を取得することができるようになった。これに伴い, ステレオ画像の解析でこれまで用いてきたオーロラ再構成アルゴリズムや医療用CTで用いられているアルゴリズムの応用について数値的な検討を行うことにした。本論文では, フィルター付き逆投影法のような解析的な手法や, MART (Multiplicative Algebraic Reconstruction Technique)法や乗法的SIRT(Simultaneous Iterative Reconstruction Technique)法, 擬似逆マトリクス法のような代数的な手法について, p-近似と名付けた修正法とも合わせて再構成のシミュレーションを行い, 4～6点の観測においてはMART法や乗法的SIRT法が優れていること, また一定の条件下でp-近似が有用であることを確かめた。","subitem_description_type":"Other"}]},"item_1_description_12":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"We have been studying reliable reconstruction of auroral luminous forms from simultaneously observed multiple tomographic images. Recent international collaborative observation has made it possible to obtain simultaneous auroral images at 4-6 observing sites. Here, we investigate the reconstruction algorithms which can be applied to auroral tomographic inversion. Analytical algorithms such as a back projection with filtering method and algebraic ones such as MART (Multiplicative Algebraic Reconstruction Technique), SIRT (Simultaneous Iterative Reconstruction Technique) and a pseudo inverse matrix method are studied along with a relevant constraint called the p-approximation. Numerical simulation for these methods shows that MART and SIRT are superior to the other methods, and also the p-approximation works well for aurora locations having poor observing conditions.","subitem_description_type":"Other"}]},"item_1_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15094/00008999","subitem_identifier_reg_type":"JaLC"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00181831","subitem_source_identifier_type":"NCID"}]},"item_1_source_id_20":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00857289","subitem_source_identifier_type":"ISSN"}]},"item_1_subject_21":{"attribute_name":"国際十進分類法","attribute_value_mlt":[{"subitem_subject":"551.510.535/.537","subitem_subject_scheme":"UDC"}]},"item_1_text_10":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Kyoto University"},{"subitem_text_language":"en","subitem_text_value":"Kyoto University"},{"subitem_text_language":"en","subitem_text_value":"Kyoto University"}]},"item_1_text_9":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"京都大学大学院工学研究科"},{"subitem_text_value":"京都大学大学院工学研究科"},{"subitem_text_value":"京都大学大学院工学研究科"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"1997-07-01"}],"displaytype":"detail","filename":"KJ00000140348.pdf","filesize":[{"value":"825.9 kB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"KJ00000140348","url":"https://nipr.repo.nii.ac.jp/record/8999/files/KJ00000140348.pdf"},"version_id":"061f0270-fa90-46f3-8c85-e0794a84d09c"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"オーロラトモグラフィにおける再構成アルゴリズムの数値シミュレーションによる検討","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"オーロラトモグラフィにおける再構成アルゴリズムの数値シミュレーションによる検討"},{"subitem_title":"A study of the reconstruction algorithm for auroral tomography by numerical simulation","subitem_title_language":"en"}]},"item_type_id":"1","owner":"4","path":["1117"],"pubdate":{"attribute_name":"公開日","attribute_value":"1997-07-01"},"publish_date":"1997-07-01","publish_status":"0","recid":"8999","relation_version_is_last":true,"title":["オーロラトモグラフィにおける再構成アルゴリズムの数値シミュレーションによる検討"],"weko_creator_id":"4","weko_shared_id":4},"updated":"2023-07-25T13:14:30.390675+00:00"}