{"links":{},"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00141299","sets":["1164:3696:7766:8210"]},"path":["8210"],"owner":"11","recid":"141299","title":["ローカル・ラグ制御を伴うマルチメディア伝送サーバの構築"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-05"},"_buckets":{"deposit":"8ffb53c8-a9e6-4d88-983b-253932269fd8"},"_deposit":{"id":"141299","pid":{"type":"depid","value":"141299","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"ローカル・ラグ制御を伴うマルチメディア伝送サーバの構築","author_link":["205704","205705","205702","205701","205703","205706"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ローカル・ラグ制御を伴うマルチメディア伝送サーバの構築"}]},"item_type_id":"4","publish_date":"2015-03-05","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"同志社大学大学院理工学研究科"},{"subitem_text_value":"同志社大学大学院理工学研究科"},{"subitem_text_value":"同志社大学大学院理工学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Science and Engineering, Doshisha University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Science and Engineering, Doshisha University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Science and Engineering, Doshisha 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/141299/files/IPSJ-GN15094022.pdf"},"date":[{"dateType":"Available","dateValue":"2017-03-05"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-GN15094022.pdf","filesize":[{"value":"876.7 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":"29"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"bd22ab0c-c47b-45a8-ba8a-2a1f7df0dda2","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2015 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"李, 榮宰"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"片桐, 滋"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大崎, 美穂"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yeongjae, Lee","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Shigeru, Katagiri","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Miho, Ohsaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1155524X","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":"コンピュータに支援される協調的作業の実現に対する要請が高まる中で，高い品質をもつマルチメディア情報提示技術の開発が関心を集めている．そのような情報提示を実現するため，特に，大型液晶ディスプレイやビデオカメラ，ラウドスピーカ，マイクロホンなどの多数のマルチメディア機器を部屋型の空間に配置する “t-Room” のために，音声データと映像データを同期的に伝送することができるマルチメディアデータ伝送サーバを開発する．本サーバ中の音声伝送モジュールは，知覚レベルの遅延の知覚を低減することを目指すローカル・ラグ制御機能を持ち，映像伝送モジュールは，複数のディスプレイ間の映像データの同期機能を持つ．その開発においては，映像伝送モジュールが，その厳密に定義されている計算手順の存在に基づいて，マルチメディア同期における基準として用いられている．また，音声伝送サーバにおけるリングバッファに関わるデータ入出力を可変長の複数データブロック単位とすることで，その音声伝送の動作安定性を高めている．体系的な評価実験の結果，開発したマルチメディアデータサーバは，640×480 ピクセルから 1920×1280 ピクセルにわたる広範囲の映像データサイズと 512 バイトなどの種々の音声データブロックサイズにおいて，安定的に動作することが確認される．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Along with increasing demand for computer-supported cooperative work, the development of high-quality multi-media information displays has attracted vigorous research interests. To realize such information display, ”t-Room” has been proposed that locates many multi-media devices, such as large size liquid crystal displays, video cameras, loudspeakers, and microphones in a room type layout. In this paper, we newly develop a multi-media data transmission server for t-Room by integrating the existing voice and video servers. The server consists of a voice data transmission module that has local-lag control function and a video data transmission module that allows the synchronized reproduction of multiple video data. In our development, a video data transmission module works as a standard in multi-media synchronization because the reproduction of video data is a rigid but stable computational mechanism. Additionally, we elaborate our new server's voice data transmission module, which is functionally equal to the existing voice server and improve its stability by introducing a mechanism that transfers multiple data blocks to or from the inside ring buffers. Finally, from systematic evaluation experiments, we show that our developed multi-media server stably runs with a wide range of video data sizes from 640 x 480 pixels to 1920 x 1280 pixels and several voice data block sizes, such as 512 bytes.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告グループウェアとネットワークサービス（GN）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2015-03-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"22","bibliographicVolumeNumber":"2015-GN-94"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-19T00:18:54.280381+00:00","updated":"2025-01-20T19:27:26.276058+00:00","id":141299}