{"created":"2023-06-20T14:39:22.667790+00:00","id":6126,"links":{},"metadata":{"_buckets":{"deposit":"498dee8f-f920-4cbe-9a24-2f229051c1b2"},"_deposit":{"created_by":1,"id":"6126","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"6126"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00006126","sets":["1887:1891","9:789:1031:1050"]},"author_link":["30621","30622","30624","30623"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Measurement technique for the three-dimensional location and attitude angle in the FHI low-speed wind tunnel: DLT method"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-02-28","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"27","bibliographicPageStart":"22","bibliographicVolumeNumber":"JAXA-SP-05-019","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料: 第75回風洞研究会議論文集"},{"bibliographic_title":"JAXA Special Publication: Proceedings of the Wind Tunnel Technology Association 75th Meeting","bibliographic_titleLang":"en"}]}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"無人機や母機の搭載物(燃料タンクなど)の投下・投棄風洞試験などの動的風洞試験は長年に渡り実施されてきているが、近年では無人機の必要性・重要性が高まり、計測の精度やデータの生産効率の向上が求められている。近年のデジタル技術発達を背景に、デジタルカメラと、画像からの座標読取りソフトを用いることにより、写真の現像・焼付け時間および、写真(焼付けられた写真)からの読取り作業を大幅に減らし、データの生産効率向上を図ることを目的とし、また、読取った数値データからDLT法(Direct Linear Transformation technique)を行うことで、運動軌跡の座標値と姿勢角の精度を向上させ、解析時間の短縮を図ることが出来た。DLT法の概略と、弊社における計測システムおよび、その精度を示す。","subitem_description_type":"Abstract"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0049495003","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: 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test","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"low speed wind tunnel","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"image processing","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"linear transformation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"digital camera","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"wind tunnel model","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"digital technique","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"video equipment","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"coordinate transformation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"attitude 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