Viewport-Adaptive Navigable 360-Degree Video Delivery
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TLDR
In this article, a viewport-adaptive 360-degree video streaming system is proposed to reduce the bandwidth waste, while still providing an immersive experience, by preparing multiple video representations, which differ not only by their bit-rate, but also by the qualities of different scene regions.Citations
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Journal ArticleDOI
A Survey on Bitrate Adaptation Schemes for Streaming Media Over HTTP
TL;DR: This survey provides an overview of the different methods proposed over the last several years of bitrate adaptation algorithms for HTTP adaptive streaming, leaving it to system builders to innovate and implement their own method.
Proceedings ArticleDOI
360-Degree Video Head Movement Dataset
TL;DR: A dataset of head movements of users watching 360-degree videos on a Head-Mounted Display (HMD) is introduced and some examples of statistics that can be extracted from the collected data, for a content-dependent analysis of users' navigation patterns.
Proceedings ArticleDOI
Flare: Practical Viewport-Adaptive 360-Degree Video Streaming for Mobile Devices
TL;DR: This work conducts an IRB-approved user study and develops novel online algorithms that determine which spatial portions to fetch and their corresponding qualities for Flare, a practical system for streaming 360-degree videos on commodity mobile devices.
Proceedings ArticleDOI
Fixation Prediction for 360° Video Streaming in Head-Mounted Virtual Reality
TL;DR: This paper develops fixation prediction networks that concurrently leverage sensor- and content-related features to predict the viewer fixation in the future, which is quite different from the solutions in the literature.
Proceedings ArticleDOI
360° Video Viewing Dataset in Head-Mounted Virtual Reality
TL;DR: This paper presents datasets of both content data (such as image saliency maps and motion maps derived from 360° videos) and sensor data ( such as viewer head positions and orientations derived from HMD sensors) that can be used to optimize existing 360° video streaming applications and novel applications (like crowd-driven camera movements).
References
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Proceedings ArticleDOI
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Journal ArticleDOI
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Proceedings ArticleDOI
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Proceedings ArticleDOI
Optimizing 360 video delivery over cellular networks
TL;DR: This paper proposes a cellular-friendly streaming scheme that delivers only 360 videos' visible portion based on head movement prediction, which can reduce bandwidth consumption by up to 80% based on a trace-driven simulation.
Proceedings ArticleDOI
A Framework to Evaluate Omnidirectional Video Coding Schemes
TL;DR: This paper extract viewport based head motion trajectories, and compares the original and coded videos on the viewport, and shows that the average viewport quality can be approximated by a weighted spherical PSNR.