{"id":41172,"updated":"2025-01-22T12:04:27.920656+00:00","links":{},"created":"2025-01-18T23:08:06.498426+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00041172","sets":["1164:3616:3632:3634"]},"path":["3634"],"owner":"1","recid":"41172","title":["複数参照フレームを用いた効率的動き探索に関する検討"],"pubdate":{"attribute_name":"公開日","attribute_value":"2005-10-07"},"_buckets":{"deposit":"d62eafaf-d3e8-4a73-9e6b-f27958bc5a5e"},"_deposit":{"id":"41172","pid":{"type":"depid","value":"41172","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"複数参照フレームを用いた効率的動き探索に関する検討","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"複数参照フレームを用いた効率的動き探索に関する検討"},{"subitem_title":"A Study on Effective Motion Estimation Algorithm with Multiple Reference Frames","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2005-10-07","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"早大"},{"subitem_text_value":"早大 メディアグルー"},{"subitem_text_value":"早大 メディアグルー"},{"subitem_text_value":"早大"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Waseda University,Media Glue Corp.","subitem_text_language":"en"},{"subitem_text_value":"Waseda University,Media Glue Corp.","subitem_text_language":"en"},{"subitem_text_value":"Waseda 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/41172/files/IPSJ-AVM05050005.pdf"},"date":[{"dateType":"Available","dateValue":"2007-10-07"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-AVM05050005.pdf","filesize":[{"value":"193.8 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":"be0584a4-d485-4a8e-bd8e-5b54b460780b","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2005 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"松尾, 翔平"},{"creatorName":"永吉, 功"},{"creatorName":"花村, 剛"},{"creatorName":"富永, 英義"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shohei, MATSUO","creatorNameLang":"en"},{"creatorName":"Isao, NAGAYOSHI","creatorNameLang":"en"},{"creatorName":"Tsuyoshi, HANAMURA","creatorNameLang":"en"},{"creatorName":"Hideyoshi, TOMINAGA","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":"H.264/MPEG-4 AVCは,高い符号化効率を実現するために,従来の標準動画像符号化に加えて,様々な新規のツールが導入された.特に動き補償では,可変ブロックサイズの動き補償,1/4画素精度の動き補償,そして,複数参照フレームによる動き補償,と3つのツールが取り込まれた.動き補償では,参照フレームの枚数が増加すると,それに比例して動き補償の処理が増大する.本稿では,複数参照フレーム間の動きベクトルの相関性と縮小画像のコストを考慮し,動き探索打ち切り処理を加えることで,探索枚数が増加しても,画質を保ちつつ探索の演算回数を参照枚数1枚の場合に近似する方式を検討する.既存の動き探索処理と容易に組み合わせを可能にしながら,符号化において甚大となる動き補償の処理量を大幅に削減する.","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"We can utilize various new tools by H.264/MPEG-4 AVC as well as existing video coding methods in order to achieve a higher level of coding efficiency. For example, new technology in motion compensation tools is included in H.264/MPEG-4 AVC, such as variable block size motion compensation, multiple reference frames and quarter-pel motion compensation. The encoding cost increases in proportion to the number of reference frames. In this paper, we propose an effective motion estimation algorithm with multiple reference frames by using the correlativity of motion vector among reference frames and the cost of the reduced image. Simulation results show that the proposed algorithm reduces the encoding time to that of one reference frame while keeping image quality and bit rate.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"28","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":"23","bibliographicIssueDates":{"bibliographicIssueDate":"2005-10-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"98(2005-AVM-050)","bibliographicVolumeNumber":"2005"}]},"relation_version_is_last":true,"weko_creator_id":"1"}}