Proceedings of the 32nd Workshop on Network and Operating Systems Support for Digital Audio and Video最新文献

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Atlas level rate distortion optimization for 6DoF immersive video compression 针对6DoF沉浸式视频压缩的Atlas级速率失真优化
Soonbin Lee, Jong-Beom Jeong, Eun‐Seok Ryu
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引用次数: 4
Does TCP new congestion window validation improve HTTP adaptive streaming performance? TCP新的拥塞窗口验证提高HTTP自适应流性能吗?
Mihail Yanev, Stephen McQuistin, C. Perkins
{"title":"Does TCP new congestion window validation improve HTTP adaptive streaming performance?","authors":"Mihail Yanev, Stephen McQuistin, C. Perkins","doi":"10.1145/3534088.3534347","DOIUrl":"https://doi.org/10.1145/3534088.3534347","url":null,"abstract":"When using HTTP adaptive streaming, video traffic exhibits on-off behaviour with frequent idle periods that can interact poorly with TCP congestion control algorithms. New congestion window validation (New CWV) modifies TCP to allow senders to recover their sending rate more quickly after certain idle periods. While previous work has shown that New CWV can improve transport performance for streaming video, it has not been shown if this translates to improved application performance in terms of playback stability. In this paper, we show that New CWV can reduce video re-buffering events by up to 4%, and limit representation switches by 12%, without any changes to existing rate adaptation algorithms.","PeriodicalId":150454,"journal":{"name":"Proceedings of the 32nd Workshop on Network and Operating Systems Support for Digital Audio and Video","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128628267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applying VertexShuffle toward 360-degree video super-resolution 将VertexShuffle应用于360度视频超分辨率
N. Li, Yao Liu
{"title":"Applying VertexShuffle toward 360-degree video super-resolution","authors":"N. Li, Yao Liu","doi":"10.1145/3534088.3534353","DOIUrl":"https://doi.org/10.1145/3534088.3534353","url":null,"abstract":"With the recent successes of deep learning models, the performance of 2D image super-resolution has improved significantly. Inspired by recent state-of-the-art 2D super-resolution models and spherical CNNs, in this paper, we design a novel spherical superresolution (SSR) approach for 360-degree videos. To address the bandwidth waste problem associated with 360-degree video transmission/streaming and save computation, we propose the Focused Icosahedral Mesh to represent a small area on the sphere and construct matrices to rotate spherical content to the focused mesh area. We also propose a novel VertexShuffle operation on the mesh, motivated by the 2D PixelShuffle operation. We compare our SSR approach with state-of-the-art 2D super-resolution models. We show that SSR has the potential to achieve significant benefits when applied to spherical signals.","PeriodicalId":150454,"journal":{"name":"Proceedings of the 32nd Workshop on Network and Operating Systems Support for Digital Audio and Video","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122156952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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