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Tradeoff Relationship between Fidelity and Latency in Interactive Audio-Video Applications over IP Networks
https://nitech.repo.nii.ac.jp/records/5341
https://nitech.repo.nii.ac.jp/records/5341bb1e9194-8166-4355-bc0f-a500ddb2a775
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文_fulltext (563.5 kB)
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Copyright (c) 2007 IEICE http://search.ieice.org/index.html
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2013-06-25 | |||||||||
| タイトル | ||||||||||
| タイトル | Tradeoff Relationship between Fidelity and Latency in Interactive Audio-Video Applications over IP Networks | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | journal article | |||||||||
| 著者 |
Ito, Yoshihiro
× Ito, Yoshihiro
× Tasaka, Shuji
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| 著者別名 | ||||||||||
| 姓名 | 伊藤, 嘉浩 | |||||||||
| 著者別名 | ||||||||||
| 姓名 | 田坂, 修二 | |||||||||
| 書誌情報 |
en : IEICE Transactions on Communications 巻 E90-B, 号 5, p. 1112-1121, 発行日 2007-05-01 |
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| 出版者 | ||||||||||
| 出版者 | Institute of Electronics, Information and Communication Engineers | |||||||||
| 言語 | en | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0916-8516 | |||||||||
| item_10001_source_id_32 | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA10826261 | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | Interactive audio-video applications over IP networks have subjective tradeoffs between fidelity and latency owing to packet buffering at the receiver. Increasing the buffering time improves the fidelity, whereas it degrades the latency. This paper makes the subjective tradeoff between fidelity and latency clear in a quantitative way. In addition, we examine the effect of tasks on the subjective tradeoff. In evaluating the effect of tasks, we use two tasks according to ITU-T Recommendation P.920. An experiment was conducted to measure user-level QoS of an interactive application with the psychometric methods. We then investigate the subjective tradeoff quantitatively by QoS mapping. The experimental results confirm that there exists the buffering time which makes user-level QoS the highest. The results also show that the optimum buffering time depends on the kind of task. | |||||||||
| 言語 | en | |||||||||
