{"id":40973,"updated":"2025-01-22T12:10:21.921452+00:00","links":{},"created":"2025-01-18T23:07:57.510290+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00040973","sets":["1164:3616:3617:3618"]},"path":["3618"],"owner":"1","recid":"40973","title":["適応内挿フィルタを用いた複数フレームからのオーバラップ動き補償"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-12-04"},"_buckets":{"deposit":"cec66751-777e-4749-9f87-18f901a324e8"},"_deposit":{"id":"40973","pid":{"type":"depid","value":"40973","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"適応内挿フィルタを用いた複数フレームからのオーバラップ動き補償","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"適応内挿フィルタを用いた複数フレームからのオーバラップ動き補償"},{"subitem_title":"Overlapped Block Motion Compensation from Multiple Frames Using Adaptive Interpolation Filters","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2008-12-04","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京理科大学理工学部"},{"subitem_text_value":"東京理科大学理工学部"},{"subitem_text_value":"東京理科大学理工学部"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Faculty of Science and Technology, Tokyo University of Science","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Science and Technology, Tokyo University of Science","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Science and Technology, Tokyo University of Science","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/40973/files/IPSJ-AVM08063011.pdf"},"date":[{"dateType":"Available","dateValue":"2010-12-04"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-AVM08063011.pdf","filesize":[{"value":"699.5 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"27"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"34c25e3e-d367-463a-bba0-f8f1bbfcfd9b","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2008 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中島, 勝己"},{"creatorName":"松田, 一朗"},{"creatorName":"伊東, 晋"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Masaki, Nakajima","creatorNameLang":"en"},{"creatorName":"Ichiro, Matsuda","creatorNameLang":"en"},{"creatorName":"Susumu, Itoh","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10438399","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_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，動画像符号化のための動き補償 (MC) 方式として，半画素精度， １/4 画素精度といった高精度な動ベクトルに基づいた手法が一般的に用いられている．これに対し筆者らは，動ベクトルを整数画素精度に限定する代わりに，フレーム毎に設計した複数の内挿フィルタを適応選択することで，高精度な MC 予測を実現する方式を提案している．またこの方式を，動き補償された複数のフレームを同時に参照できるように拡張することで，予測性能が向上することも確認している．本稿では，更にオーバラップ MC と同様な窓関数による重み付け処理の導入を図ったシミュレーションの結果，上記の重み付け処理によって再生画像の SN 比が最大 10 dB 向上し，主観的にもブロック歪の低減効果によって優れた画質が得られることを確認した．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Currently, motion compensation (MC) based on precise motion vectors, typically with half-pel or quar ter-pel accuracy, is commonly used in video coding schemes. On the other hand, we have proposed a novel MC method which employs motion vectors with integer-pel accuracy and adaptive interpolation filters to compensate various motions. Recently, the method has been extended to use motion-compensated multiple frames at once. In this paper, we combine our method with an overlapped block MC technique using a smoothed window function. Simulation results indicate that the proposed method provides a coding gain of up to 1.0 dB in SNR compared with our previous method.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"64","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告オーディオビジュアル複合情報処理（AVM）"}],"bibliographicPageStart":"59","bibliographicIssueDates":{"bibliographicIssueDate":"2008-12-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"124(2008-AVM-063)","bibliographicVolumeNumber":"2008"}]},"relation_version_is_last":true,"weko_creator_id":"1"}}