{"id":41179,"updated":"2025-01-22T12:03:58.826544+00:00","links":{},"created":"2025-01-18T23:08:06.812699+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00041179","sets":["1164:3616:3632:3635"]},"path":["3635"],"owner":"1","recid":"41179","title":["H.264/AVCにおける符号量制御に関する考察"],"pubdate":{"attribute_name":"公開日","attribute_value":"2005-07-07"},"_buckets":{"deposit":"e7b0f29b-20c0-4244-94cb-b3bb84da4f9d"},"_deposit":{"id":"41179","pid":{"type":"depid","value":"41179","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"H.264/AVCにおける符号量制御に関する考察","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"H.264/AVCにおける符号量制御に関する考察"},{"subitem_title":"A Study on Rate Control for H.264/AVC","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2005-07-07","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"早稲田大学大学院国際情報通信研究科"},{"subitem_text_value":"株式会社メディアグルー"},{"subitem_text_value":"株式会社メディアグルー"},{"subitem_text_value":"早稲田大学大学院国際情報通信研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of GITS Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Media Glue Corporation","subitem_text_language":"en"},{"subitem_text_value":"Media Glue Corporation","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of GITS 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/41179/files/IPSJ-AVM05049005.pdf"},"date":[{"dateType":"Available","dateValue":"2007-07-07"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-AVM05049005.pdf","filesize":[{"value":"523.7 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":"57bf449c-3276-4a5f-a05e-77ec5298b852","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":"秋間佑輔"},{"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":"Yusuke, AKIMA","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":"本稿ではH.264/AVCにおける符号量制御方式について議論する。参照ソフトウェアによる従来方式では入力画像先頭フレームは符号量制御されず、その発生符号量による影響が後続数十フレームに影響を与え、目標ビットレートへの収束性が不十分となることを指摘する。そこで本稿では、割り当て符号量を入力画像の先頭フレームから考慮することによって量子化パラメータを制御する方式を提案する。先頭フレームの割り当て符号量は符号化複雑度の初期値を設定することによって算出する。予備実験で発生符合量と量子化パラメータの特性を測定し、モデル化することで割り当て符号量から量子化パラメータを制御する。出力ビットレートと画質の観点で従来方式との比較評価実験を行うことで提案方式の妥当性を述べる。","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Rate control scheme is a very important technology of video transmission,especially in CBR. H.264/AVC standard as a joint development of ITU-T and ISO-MPEG supports rate control. In H.264/AVC reference software JM,initial I and P frame of video sequence can not be encoded with rate control. In this paper,we propose QP(quantization parameter) control scheme of initial I and P frame. We compute target bits of initial I and P frame by setting initial value of coding complexity,and decide the value of QP using the relation between actual bits and QP. We evaluate the proposed method by the value of actual bitrate and PSNR. Our method provide better results than JM.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"29","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":"25","bibliographicIssueDates":{"bibliographicIssueDate":"2005-07-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"66(2005-AVM-049)","bibliographicVolumeNumber":"2005"}]},"relation_version_is_last":true,"weko_creator_id":"1"}}