A cloud-assisted DASH-based Scalable Interactive Multiview Video Streaming framework

Zhao, Mincheng; Gong, Xiangyang; Liang, Jie; Wang, Wendong; Que, Xirong; Cheng, Shiduan

doi:10.1109/pcs.2015.7170079

Cited by 12 publications

(12 citation statements)

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“…A greedy approach to constructing, from this solution, a solution (for larger A) in which the top three streams are being downloaded from, with no greater total bandwidth usage, would compare the utility change that would result from moving to (6, 6, 1) versus that from moving to (7,4,1), and would select (6, 6, 1) since (7 − 6) × 0.5 < (6−4)×0.251. However, this choice would need to be revisited when constructing a solution in which the top four streams are being downloaded from, since the optimal choice in this case is (7, 4, 1, 1).…”

Section: Number Of Candidate Solutionsmentioning

confidence: 99%

“…Other related works have used HAS for multi-view streaming [3], [4], region-of-interest (ROI) based tiled streaming [9], [10], [50], [51], or systems in which video from multiple cameras is combined into personalized wide-field-of-view panorama video experiences [52]. All these works combine video streams from multiple cameras or use tiles from ultra-high resolution omni-directional (360…”

Section: H Bandwidth Variationsmentioning

confidence: 99%

“…One way to provide multi-view streaming is to encode the video from all views into a single stream [1], [2], [3], [4]. However, this approach has the disadvantage that only a portion of the received video data will be used, implying lower achievable video quality given fixed client bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…Although there are recent works on multi-view video streaming [3], [4] and tiled streaming [10], [9] that have used a HAS-based design, to the best of our knowledge, our framework is the first to perform quality adaptation of a set of conventional video-on-demands streams based on both current bandwidth conditions and switching probabilities. In contrast to free viewpoint videos [6], the video streams in a stream bundle can be individual recordings and require no depth information.…”

Section: Introductionmentioning

confidence: 99%

“…This is particularly important for content providers that would make large bundles available. In contrast, many multi-view video streaming solutions encode all views (popular and less popular) into a single stream [1], [2], [3], [4].…”

Section: Introductionmentioning

confidence: 99%

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Optimized Adaptive Streaming of Multi-video Stream Bundles

Carlsson

Eager

Krishnamoorthi

et al. 2017

IEEE Trans. Multimedia

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Abstract-In contrast to traditional video, multi-view video streaming allows viewers to interactively switch among multiple perspectives provided by different cameras. One approach to achieving such a service is to encode the video from all of the cameras into a single stream, but this has the disadvantage that only a portion of the received video data will be used, namely that required for the selected view at each point in time. In this paper we introduce the concept of a "multi-video stream bundle" that consists of multiple parallel video streams that are synchronized in time, each providing the video from a different camera capturing the same event or movie. For delivery we leverage the adaptive features and time-based chunking of HTTPbased Adaptive Streaming (HAS), but now employing adaptation in both content and rate. Users are able to change their viewpoint on-demand and the client player adapts the rate at which data is retrieved from each stream based on the user's current view, the probabilities of switching to other views, and the user's current bandwidth conditions. A crucial component of such a system is the prefetching policy. For this we present an optimization model as well as a simpler heuristic that can balance the playback quality and the probability of playback interruptions. After analytically and numerically characterizing the optimal solution, we present a prototype implementation and sample results. Our prefetching and buffer management solution is shown to provide close to seamless playback switching when there is sufficient bandwidth to prefetch the parallel streams.

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Section: Number Of Candidate Solutionsmentioning

confidence: 99%