{"created":"2023-06-20T14:35:46.959757+00:00","id":2061,"links":{},"metadata":{"_buckets":{"deposit":"08c6ede5-d28c-48e9-a627-404b93d2b69e"},"_deposit":{"created_by":1,"id":"2061","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2061"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00002061","sets":["1887:1893","9:10:106:110"]},"author_link":["2732","2730","2734","2733","2731","2729"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Estimation of Image Distortions Using Venus limbs"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2011-01-31","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"JAXA-RR-10-010","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告"},{"bibliographic_title":"JAXA Research and Development Report","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"2010年12月に金星周回軌道に入ることが予定されている金星周回衛星あかつきでは，撮像観測により雲の動きを追跡することで風速を求める観測が計画されている．雲の追跡を精度良く行う前提として，画像各画素が指し示す視線ベクトルを正確に把握し，追跡の対象となる雲の位置を正しく認識する必要がある．しかし実際に金星撮像観測に用いられている欧州宇宙機構Venus Express搭載のVenus Monitoring Cameraや，あかつき搭載の1micromカメラ，2micromカメラ，紫外イメージャー，中間赤外カメラは視野が広いため画像の歪曲収差の影響が顕著に現れやすく，空間構造を利用した解析にはその歪みの程度を知ることが観測の精度を向上させるために必要である．本研究の目的は宇宙空間で歪み較正データを得ることが困難なカメラを念頭に置き，人工衛星搭載カメラが取得した金星画像に写る惑星の縁を利用することで画像歪の程度を調べる手法を開発することである．この手法を十分な撮像データが蓄積されている欧州宇宙機構Venus Express搭載Venus Monitoring Cameraによる紫外波長撮像画像に適応したところ，明確に画像歪が存在することを検出することが出来た．また統計的考察から将来の観測において，100枚の金星画像を得た時点で画像歪の程度を十分な精度で見積もることが出来ることを示した.","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The Venus orbiter, Akatsuki, which will reach Venus in December 2010, will obtain cloud images to estimate wind speeds using a cloud tracking method. It is important for tracking cloud motions with high accuracy that the direction of line of sight from each pixel in an image and the positions of tracked clouds are well determined. Because Venus Monitoring Camera (VMC) onboard Venus Express (producted by European Space Agency) and Akatsuki's 1microm camera, 2microm camera, Ultraviolet Imager and Longwave infrared camera have wide field of view, optical distortions are tended to be significantly of those cameras' images. The purposes of this study are to develop a method to detect optical distortions of a camera using the position of Venus limbs, and to apply this method for cameras which can hardly calibrate image distortions in space. Applying this method to images taken by VMC, we could detect the existence of an optical distortion of the camera. From the statistical estimations, we also found that we can detect the optical distortion of a camera with enough accuracy using at least 100 Venus images.","subitem_description_type":"Other"}]},"item_3_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_3_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0064836000","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-10-010","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1113","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1192675X","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院理学系研究科地球惑星科学専攻"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"神山, 徹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山崎, 敦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山田, 学"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kouyama, Toru","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamazaki, Atsushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamada, Manabu","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-15"}],"displaytype":"detail","filename":"64836000.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"64836000.pdf","url":"https://jaxa.repo.nii.ac.jp/record/2061/files/64836000.pdf"},"version_id":"22a33e33-a23f-489a-831e-48a2f2255104"}]},"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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"金星縁を利用した画像歪の推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"金星縁を利用した画像歪の推定"}]},"item_type_id":"3","owner":"1","path":["110","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"2061","relation_version_is_last":true,"title":["金星縁を利用した画像歪の推定"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:29:18.651098+00:00"}