{"links":{},"id":41338,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00041338","sets":["1164:3616:3647:3648"]},"path":["3648"],"owner":"1","recid":"41338","title":["ソフトウェアMPEG-4ASPビデオコーデックの開発"],"pubdate":{"attribute_name":"公開日","attribute_value":"2002-12-16"},"_buckets":{"deposit":"4e715124-60f6-425c-94d5-9cb619d8a2d3"},"_deposit":{"id":"41338","pid":{"type":"depid","value":"41338","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"ソフトウェアMPEG-4ASPビデオコーデックの開発","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ソフトウェアMPEG-4ASPビデオコーデックの開発"},{"subitem_title":"Development of a Software MPEG-4 ASP Video Codec","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2002-12-16","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"NECマルチメディア研究所"},{"subitem_text_value":"NECマルチメディア研究所"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Multimedia Res. Labs., NEC","subitem_text_language":"en"},{"subitem_text_value":"Multimedia Res. Labs., NEC","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/41338/files/IPSJ-AVM02039009.pdf"},"date":[{"dateType":"Available","dateValue":"2004-12-16"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-AVM02039009.pdf","filesize":[{"value":"1.2 MB"}],"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":"e596398d-a1e7-4c45-843b-9a0ab8b2ace9","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2002 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"青木, 啓史"},{"creatorName":"宮崎, 孝"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hirofumi, Aoki","creatorNameLang":"en"},{"creatorName":"Takashi, Miyazaki","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":"MPEG-4 Visual Advanced Simple Profile (MPEG-4 ASP)に準拠した高画質ソフトウェアビデオコーデックを開発した。MPEG-4 ASPでは、符号化方式の改善により、MPEG-2比で20?40％程度符号化効率が向上している。開発したコーデックは、これに事前解析処理に基づく符号量制御や前処理と後処理の最適化を加えることで、現行TV/DVD品質のビデオストリーミングを2?3Mbps程度のビットレートで再現できる。また、デコーダは30fpsのSDTV解像度ビデオストリームを800MHz Pentium III上でリアルタイム再生できる。","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"A software MPEG-4 Visual Advanced Simple Profile (MPEG-4 ASP) video codec has been developed. MPEG-4 ASP has the advantage of coding efficiency by 20-40% compared with MPEG-2. The developed software codec employs an enhanced bit rate control based on preanalysis and optimized pre/post-processing. This codec produces TV/DVD quality video streams at 2-3 Mbps. The decoder playbacks video streams of SDTV resolution at 30 fps on the 800 MHz Pentium III processor in realtime.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"50","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":"45","bibliographicIssueDates":{"bibliographicIssueDate":"2002-12-16","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"120(2002-AVM-039)","bibliographicVolumeNumber":"2002"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"created":"2025-01-18T23:08:14.152465+00:00","updated":"2025-01-22T11:58:46.677134+00:00"}