Results 1 - 10
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913
Reliable Video Communication over Lossy Packet Networks using Multiple State Encoding and Path Diversity
- Visual Communications and Image Processing (VCIP
, 2001
"... Video communication over lossy packet networks suchastheInternet is hampered by limited bandwidth and packet loss. This paper presents a system for providing reliable video communication over these networks, where the system is composed of two subsystems: (1) multiple state video encoder/decoder and ..."
Abstract
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Cited by 185 (15 self)
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to produce usable video, and furthermore, the correctly received streams provide bidirectional (previous and future) information that enables improved state recovery for the corrupted stream. This video coder is a form of multiple description coding (MDC), and its novelty lies in its use of information from
Quality Adaptation for Congestion Controlled Video Playback over the Internet
, 1999
"... Streaming audio and video applications are becoming increasingly popular on the Internet, and the lack of effective congestion control in such applications is now a cause for significant concern. The problem is one of adapting the compression without requiring video-servers to re-encode the data, an ..."
Abstract
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Cited by 154 (1 self)
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Streaming audio and video applications are becoming increasingly popular on the Internet, and the lack of effective congestion control in such applications is now a cause for significant concern. The problem is one of adapting the compression without requiring video-servers to re-encode the data
YouTube Traffic Characterization: A View From the Edge
- PROC. OF IMC
, 2007
"... This paper presents a traffic characterization study of the popular video sharing service, YouTube. Over a three month period we observed almost 25 million transactions between users on an edge network and YouTube, including more than 600,000 video downloads. We also monitored the globally popular v ..."
Abstract
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Cited by 214 (11 self)
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videos over this period of time. In the paper we examine usage patterns, file properties, popularity and referencing characteristics, and transfer behaviors of YouTube, and compare them to traditional Web and media streaming workload characteristics. We conclude the paper with a discussion
Improving Fairness, Efficiency, and Stability in HTTP-based Adaptive Video Streaming with FESTIVE
"... Many commercial video players rely on bitrate adaptation logic to adapt the bitrate in response to changing network conditions. Past measurement studies have identified issues with today’s commercial players with respect to three key metrics—efficiency, fairness, and stability—when multiple bitrate- ..."
Abstract
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Cited by 39 (5 self)
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model. Through this framework, we identify the root causes of several undesirable interactions that arise as a consequence of overlaying the video bitrate adaptation over HTTP. Building on these insights, we develop a suite of techniques that can systematically guide the tradeoffs between stability
Taming the Torrent: A practical approach to reducing cross-ISP traffic in peer-to-peer systems
- In Proc. SIGCOMM
, 2008
"... Peer-to-peer (P2P) systems, which provide a variety of popular services, such as file sharing, video streaming and voice-over-IP, contribute a significant portion of today’s Internet traffic. By building overlay networks that are oblivious to the underlying Internet topology and routing, these syste ..."
Abstract
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Cited by 193 (15 self)
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Peer-to-peer (P2P) systems, which provide a variety of popular services, such as file sharing, video streaming and voice-over-IP, contribute a significant portion of today’s Internet traffic. By building overlay networks that are oblivious to the underlying Internet topology and routing
Improving Wireless Access of Video Over the Internet
"... Network flow buffering is the use of a simple remote flowregulating buffer that is dynamically deployed between a Web client and server to improve the performance of HTTP-based access and playback of video. We show that HTTP enhanced with network flow buffering performs well, especially under high p ..."
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Network flow buffering is the use of a simple remote flowregulating buffer that is dynamically deployed between a Web client and server to improve the performance of HTTP-based access and playback of video. We show that HTTP enhanced with network flow buffering performs well, especially under high
Video transport over ad hoc networks: Multistream coding with multipath transport
- IEEE J. Sel. Areas Commun
, 2003
"... Abstract—Enabling video transport over ad hoc networks is more challenging than over other wireless networks. The wireless links in an ad hoc network are highly error prone and can go down frequently because of node mobility, interference, channel fading, and the lack of infrastructure. However, the ..."
Abstract
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Cited by 118 (20 self)
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channel models and OPNET Modeler. To further validate the viability and performance advantages of these schemes, we implemented an ad hoc multiple path video streaming testbed using notebook computers and IEEE 802.11b cards. The results show that great improvement in video quality can be achieved over
Multi-path selection for multiple description encoded video streaming
- in IEEE Int. Conf. Communications (ICC
, 2003
"... Abstract — This paper presents a new framework for multimedia streaming that integrates the application and network layer functionalities to meet such stringent application requirements as delay and loss. The coordination between these two layers provides more robust media transmission even under se ..."
Abstract
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Cited by 86 (3 self)
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method that chooses a set of paths maximizing the overall quality at the client. Overlay infrastructure is then used to achieve multi-path routing over these selected paths. The simulation results show that the average peak signal-to-noise ratio (PSNR) improves by up to 8.1 dB, if the same source video
Recent advances in the automatic recognition of audiovisual speech
- Proceedings of the IEEE
"... Abstract — Visual speech information from the speaker’s mouth region has been successfully shown to improve noise robustness of automatic speech recognizers, thus promising to extend their usability into the human computer interface. In this paper, we review the main components of audio-visual autom ..."
Abstract
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Cited by 172 (16 self)
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, ranging from small- to large-vocabulary recognition tasks, recorded at both visually controlled and challenging environments. Our experiments demonstrate that the visual modality improves automatic speech recognition over all conditions and data considered, however less so for visually challenging
Application-driven cross-layer optimization for video streaming over wireless networks
- IEEE Communications Magazine
, 2006
"... This paper proposes a cross-layer optimization framework that provides efficient allocation of wireless network resources across multiple types of applications to maximize network capacity and user satisfaction. We define a novel optimization scheme based on the Mean Opinion Score (MOS) as the unify ..."
Abstract
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Cited by 47 (3 self)
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) as the unifying metric. Our experiments, applied to scenarios where users simultaneously run three types of applications, such as realtime voice, video conferencing and file download, confirm that MOS-based optimization leads to significant improvement in terms of user perceived quality when compared
Results 1 - 10
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913