Subjective comparison of temporal and quality scalability

J. Korhonen, U. Reiter, Junyong You
{"title":"Subjective comparison of temporal and quality scalability","authors":"J. Korhonen, U. Reiter, Junyong You","doi":"10.1109/QoMEX.2011.6065696","DOIUrl":null,"url":null,"abstract":"In video streaming applications, it is necessary to choose the rate of the encoded stream to match the available transmission channel capacity. To provide flexible means for rate adaptation, different scalable video coding schemes have been proposed. For example, if necessary the bitrate can be reduced either by downscaling the frame rate (temporal scalability) or the image quality (quality scalability). However, the user preferences between different scalability types are not well known in different scenarios. In this paper, we present a methodology for subjective comparison between temporal and quality scalability. The practical experiments with low resolution video sequences show that in general, distortion is a more crucial factor for the perceived subjective quality than frame rate. However, the results also depend on the content. Moreover, we discuss the role of other different influence factors on perception.","PeriodicalId":6441,"journal":{"name":"2011 Third International Workshop on Quality of Multimedia Experience","volume":"28 1","pages":"161-166"},"PeriodicalIF":0.0000,"publicationDate":"2011-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 Third International Workshop on Quality of Multimedia Experience","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/QoMEX.2011.6065696","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11

Abstract

In video streaming applications, it is necessary to choose the rate of the encoded stream to match the available transmission channel capacity. To provide flexible means for rate adaptation, different scalable video coding schemes have been proposed. For example, if necessary the bitrate can be reduced either by downscaling the frame rate (temporal scalability) or the image quality (quality scalability). However, the user preferences between different scalability types are not well known in different scenarios. In this paper, we present a methodology for subjective comparison between temporal and quality scalability. The practical experiments with low resolution video sequences show that in general, distortion is a more crucial factor for the perceived subjective quality than frame rate. However, the results also depend on the content. Moreover, we discuss the role of other different influence factors on perception.
主观比较时间和质量的可扩展性
在视频流应用中,需要选择与可用传输信道容量相匹配的编码流速率。为了提供灵活的速率适应方法,人们提出了不同的可扩展视频编码方案。例如,如果有必要,比特率可以通过降低帧率(时间可伸缩性)或图像质量(质量可伸缩性)来降低。然而,在不同的场景中,不同可伸缩性类型之间的用户偏好并不是众所周知的。在本文中,我们提出了一种主观比较时间可扩展性和质量可扩展性的方法。低分辨率视频序列的实际实验表明,通常情况下,失真是比帧率更重要的主观质量感知因素。然而,结果也取决于内容。此外,我们还讨论了其他不同的影响因素对感知的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信