{"links":{},"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00209644","sets":["1164:4061:10490:10491"]},"path":["10491"],"owner":"44499","recid":"209644","title":["Wi-Fi CSIを用いたイメージングに関する基礎検討"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-02-22"},"_buckets":{"deposit":"e60ee8bb-2564-4fdd-8346-7bacd030dc1e"},"_deposit":{"id":"209644","pid":{"type":"depid","value":"209644","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Wi-Fi CSIを用いたイメージングに関する基礎検討","author_link":["529034","529037","529038","529040","529043","529044","529036","529042","529045","529041","529039","529035"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Wi-Fi CSIを用いたイメージングに関する基礎検討"},{"subitem_title":"A Preliminary Study on Wi-Fi CSI Imaging","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"ポスター講演","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-02-22","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"大阪大学大学院情報科学研究科"},{"subitem_text_value":"大阪大学大学院情報科学研究科／JSTさきがけ"},{"subitem_text_value":"大阪大学大学院情報科学研究科"},{"subitem_text_value":"日本電信電話株式会社 アクセスサービスシステム研究所"},{"subitem_text_value":"日本電信電話株式会社 アクセスサービスシステム研究所"},{"subitem_text_value":"大阪大学大学院情報科学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Information Science and Technology, Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, Osaka University /  JST, PRESTO","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, Osaka University","subitem_text_language":"en"},{"subitem_text_value":"Access Network Service Systems Laboratories, NTT Corporation","subitem_text_language":"en"},{"subitem_text_value":"Access Network Service Systems Laboratories, NTT Corporation","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Technology, Osaka University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/209644/files/IPSJ-UBI21069026.pdf","label":"IPSJ-UBI21069026.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-UBI21069026.pdf","filesize":[{"value":"3.4 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輝夫"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kazuki, Okawara","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Akira, Uchiyama","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Viktor, Erdelyi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tomoki, Murakami","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hirantha, Abeysekera","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Teruo, Higashino","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11838947","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8698","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，Wi-Fi CSI (Channel State Information) を用いた人の行動認識の研究が盛んに行われている．CSI を用いることにより，コストやプライバシなどの問題を解決することができる一方，環境ごとに学習が必要であるといっ た課題もある．この課題の解決策として，受信アンテナアレイを用いて到来方向ごとの電波強度を求める手法（Wi-Fi イメージング）の利用が考えられる．Wi-Fi イメージングでは，到来方向と受信アンテナ間距離に基づき幾何的に定まる位相差から，到来方向ごとの電波強度を算出する．したがって，環境に依存しないイメージングが可能である．イメージング結果から人の位置や姿勢などが認識できれば，人の位置推定や行動認識への応用が期待できる．本稿では，4 本の受信アンテナアレイにより Wi-Fi CSI を用いたイメージングを実装するとともに，銅板を対象としたイメージングを行った際の基礎的な検討を行った．周辺環境による電波の反射が無い環境で実験を行った結果，アンテナアレイ の面に対して 60 度から 120 度の範囲で銅板のイメージングが可能なことを確認した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"4","bibliographic_titles":[{"bibliographic_title":"研究報告ユビキタスコンピューティングシステム（UBI）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-02-22","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"26","bibliographicVolumeNumber":"2021-UBI-69"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:10:56.418424+00:00","updated":"2025-01-19T18:27:10.905514+00:00","id":209644}