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Viewport-Adaptive Scalable Multi-User Virtual Reality Mobile-Edge Streaming.
IEEE Transactions on Image Processing ( IF 10.6 ) Pub Date : 2020-05-06 , DOI: 10.1109/tip.2020.2986547
Jacob Chakareski

Virtual reality (VR) holds tremendous potential to advance our society, expected to make impact on quality of life, energy conservation, and the economy. To bring us closer to this vision, the present paper investigates a novel communications system that integrates for the first time scalable multi-layer 360° video tiling, viewport-adaptive rate-distortion optimal resource allocation, and VR-centric edge computing and caching, to enable next generation high-quality untethered VR streaming. Our system comprises a collection of 5G small cells that can pool their communication, computing, and storage resources to collectively deliver scalable 360° video content to mobile VR clients at much higher quality. The major contributions of the paper are the rigorous design of multi-layer 360° tiling and related models of statistical user navigation, analysis and optimization of edge-based multi-user VR streaming that integrates viewport adaptation and server cooperation, and base station 360° video packet scheduling. We also explore the possibility of network coded data operation and its implications for the analysis, optimization, and system performance we pursue in this setting. The advances introduced by our framework over the state-of-the-art comprise considerable gains in delivered immersion fidelity, featuring much higher 360° viewport peak signal to noise ratio (PSNR) and VR video frame rates and spatial resolutions.

中文翻译:

视口自适应可伸缩多用户虚拟现实移动边缘流。

虚拟现实(VR)在推动我们的社会发展方面具有巨大潜力,有望对生活质量,节能和经济产生影响。为了使我们更接近此愿景,本文研究了一种新颖的通信系统,该系统首次集成了可伸缩的多层360°视频切片,视口自适应速率失真最佳资源分配以及以VR为中心的边缘计算和缓存,以实现下一代高质量的无限制VR流。我们的系统包含5G小型蜂窝的集合,这些蜂窝可以汇集其通信,计算和存储资源,以更高的质量共同向移动VR客户端提供可扩展的360°视频内容。本文的主要贡献是严格设计了多层360°平铺和相关的统计用户导航模型,分析和优化基于边缘的多用户VR流,该流集成了视口适应和服务器协作以及基站360°视频数据包调度。我们还将探讨网络编码数据操作的可能性及其对我们在这种情况下追求的分析,优化和系统性能的影响。我们的框架在最新技术方面所取得的进步包括交付沉浸式保真度的显着提高,具有更高的360°视口峰值信噪比(PSNR)和VR视频帧速率和空间分辨率。优化和系统性能,我们在这种情况下追求。我们的框架在最新技术方面所取得的进步包括交付沉浸式保真度的显着提高,具有更高的360°视口峰值信噪比(PSNR)和VR视频帧速率和空间分辨率。优化和系统性能,我们在这种情况下追求。我们的框架在最新技术方面所取得的进步包括交付沉浸式保真度的显着提高,具有更高的360°视口峰值信噪比(PSNR)和VR视频帧速率和空间分辨率。
更新日期:2020-05-06
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