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STREAMER: Hardware Support for Smoothed Transmission of Stored Video over ATM [chapter]

Sung-Whan Moon, Padmanabhan Pillai, Kang G. Shin
1998 Lecture Notes in Computer Science  
We propose a hardware design which provides support for smoothed transmission of stored video from a server to a client for real-time playback.  ...  and 622 Mbps links.  ...  Smoothing Algorithms Although optimization criteria differs among various researchers, the main goal of smoothing algorithms [10] [17] is to reduce the rate variability of stored variable bit rate  ... 
doi:10.1007/3-540-69352-1_7 fatcat:osix2zmkibh5dmtu73z5bzshwm

Transmission Optimization of Digital Compressed Video in Wireless Systems [chapter]

Pietro Camarda, Domenico Striccoli
2010 Digital Video  
Nevertheless, there is a growing number of VBR live interactive video applications requiring "on-line" smoothing algorithms, to reduce bit rate variability on-the-fly during stream transmission.  ...  To reduce the high bit rate fluctuation typical of VBR streams, video smoothing techniques have been introduced for video transmission from a server to a client through a network, through the system model  ...  How to reference In order to correctly reference this scholarly work, feel free to copy and paste the following: http://www.intechopen.com/books/digital-video/transmission-optimization-of-digital-compressed-video-inwireless-systems  ... 
doi:10.5772/8025 fatcat:t33qvsmn3reormban5vtazvzya

Video staging: a proxy-server-based approach to end-to-end video delivery over wide-area networks

Zhi-Li Zhang, Yuewei Wang, D.H.C. Du, Dongli Su
2000 IEEE/ACM Transactions on Networking  
A major objective of our approach is to reduce the backbone WAN bandwidth requirement.  ...  Index Terms-End-to-end video delivery, heterogeneous networking environment, MPEG, proxy server, video smoothing, video staging, video streaming.  ...  There are three possible ways to apply the optimal smoothing algorithm after the cut-off: we can use the client buffer to smooth either the lower part or the upper part or both parts to reduce the rate  ... 
doi:10.1109/90.865072 fatcat:dzh4d6b74ndynorjgs5fnjehwe

Video Servers [chapter]

A Reddy, Roger Haskin
2002 The Communications Handbook  
The recent dramatic advances in communications technology has led to a demand to support multimedia data (digitized video and audio) across data networks.  ...  , where there is a move to use digital video to supplant the traditional analog methods of content creation and broadcast.  ...  The earliest attempts to support video and audio over the Worldwide Web used store and forward.  ... 
doi:10.1201/9781420041163-107 fatcat:aqhftnqcivbr5eu5etc5vkbgda

Optimal multicast smoothing of streaming video over the Internet

S. Sen, D. Towsley, Zhi-Li Zhang, J.K. Dey
2002 IEEE Journal on Selected Areas in Communications  
We formulate the multicast smoothing problem as an optimization problem, and develop an algorithm for computing the set of transmission schedules for the tree that minimize the peak rate and rate variability  ...  tree, in order to reduce the network bandwidth requirements of video dissemination.  ...  One technique, unicast workahead smoothing [3] - [5] , [17] can yield significant reductions in the peak rate and rate variability of video transmissions on the end-to-end network delivery path from  ... 
doi:10.1109/jsac.2002.802063 fatcat:ilpy3scbjreyjoi3byi6rlsc5q

Improving Wireless Access of Video Over the Internet

Jesse Steinberg, Joseph Pasquale
2007 International Conference on Networking and Services (ICNS '07)  
The benefits of network flow buffering are numerous, and include reducing interruptions to playback, maintaining high video-image quality, and decreasing client buffering requirements.  ...  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  ...  In doing so, it reduces the frame rate and picture quality, and ends up only retrieving 1.97MB (1966954 bytes), or about 25%, of the video.  ... 
doi:10.1109/icns.2007.72 dblp:conf/icns/SteinbergP07 fatcat:5zblnsdzr5gcdm72rpll26h5oa

Online variable-bit-rate video traffic smoothing

Guohong Cao, Wu-chi Feng, Mukesh Singhal
2003 Computer Communications  
The efficient transmission of variable-bit-rate (VBR) video streams is complicated by the burstiness that video compression standards such as MPEG introduce.  ...  Most of the existing techniques concentrate on stored video traffic smoothing or real-time video traffic smoothing.  ...  Variability of transmission rate: In addition to minimizing the peak rate, a smoothing algorithm should reduce the overall variability in the rate requirements for the video stream.  ... 
doi:10.1016/s0140-3664(02)00197-4 fatcat:53txvmzq5zfsbbjpsfcsxrscee

A monotonic-decreasing rate scheduler for variable-bit-rate video streaming

H. Lai, J.Y. Lee, Lian-kuan Chen
2005 IEEE transactions on circuits and systems for video technology (Print)  
Existing scheduling algorithms such as Optimal Smoothing, which requires both downward and upward bandwidth reallocations to adapt to the video bit-rate variations, simply cannot guarantee video delivery  ...  Variable-bit-rate (VBR) encoded videos can provide a more consistent visual quality than constant-bit-rate (CBR) encoded videos.  ...  ACKNOWLEDGMENT The authors want to express their gratitude to the anonymous reviewers for their insightful comments and suggestions in improving this paper.  ... 
doi:10.1109/tcsvt.2004.841687 fatcat:rrerqnlajze33jilxhaotmr4ca

Online smoothing of variable-bit-rate streaming video

S. Sen, J.L. Rexford, J.K. Dey, J.F. Kurose, D.F. Towsley
2000 IEEE transactions on multimedia  
Extensive experiments with MPEG-1 and M-JPEG video traces demonstrate that online smoothing significantly reduces the peak rate, coefficient of variation, and effective bandwidth of variable-bit-rate video  ...  Bandwidth smoothing techniques for stored video perform end to end workahead transmission of frames into the client playback buffer, in advance of their display times.  ...  In particular, since the video frames are stored in advance at the server, these bandwidth smoothing techniques can reduce rate variability on a large time scale through workahead transmission of frames  ... 
doi:10.1109/6046.825793 fatcat:zk747wtuxfbxrlwujwfdmqhlte

PCRTT enhancement for offline video smoothing

Ofer Hadar, Reuven Cohen, Andrew G. Tescher, Bhaskaran Vasudev, V. Michael Bove, Jr., Barbara Derryberry
1999 Multimedia Systems and Applications  
A n enhancement of the Piecewise Constant Rate Transmission and Transport (PCRTT) algorithm for reducing the burstiness of a video stream based on smoothing constant intervals is proposed.  ...  E-PCRTT is shown to construct transmission rate-plans with smaller buffer sizes, as compared to the original PCRTT, and alternatively, for the same buffer size, e-PCRTT reduces the number of bandwidth  ...  Acknowledgements We would like to thank Dr. Wu-chi Feng from the Department of Computer and Information Science, Ohio State University for the video streams database.  ... 
doi:10.1117/12.337397 fatcat:lvtuio4eibdz5cu7qnuvmw77yq

Video Coding Performance [chapter]

Shahriar Akramullah
2014 Digital Video Concepts, Methods, and Metrics  
Both hardware and software needed careful performance optimization and tuning at the system and application level to achieve reasonable quality in real-time video.  ...  Digital video applications require huge amounts of processing. Additionally, real-time processing and playback requirements mandate certain capabilities and performance levels from the system.  ...  For fast speed, compilers typically perform the following: • Store variables in registers: Compilers would store frequently used variables and subexpressions in registers, which are fast resources.  ... 
doi:10.1007/978-1-4302-6713-3_5 fatcat:yqk2febiszgchavs2rqgs5vspi

Multi-scale video cropping

Hazem El-Alfy, David Jacobs, Larry Davis
2007 Proceedings of the 15th international conference on Multimedia - MULTIMEDIA '07  
We describe additional techniques to improve the quality and efficiency of the algorithm, and show results on surveillance videos.  ...  This also reduces system latency.  ...  PROBLEM DEFINITION Given a video sequence, our goal is to determine a smooth trajectory for a variable size window through the video, that maximizes the captured saliency over all such trajectories and  ... 
doi:10.1145/1291233.1291255 dblp:conf/mm/El-AlfyJD07 fatcat:5specdydljgnxfw742ipi7say4

Wavelet-Based VBR Video Traffic Smoothing

D. Ye, J.C. Barker, Z. Xiong, W. Zhu
2004 IEEE transactions on multimedia  
Index Terms-Traffic smoothing, variable bit rate (VBR) video, video on demand, wavelets.  ...  The constant-quality video compression technique commonly used, variable bit rate (VBR) encoding, produces flows with multiple time-scale rate variability, so smoothing the VBR video traffic within an  ...  To reduce the rate variability of VBR video transmission, we request the client to allocate buffer space, which is increasingly becoming large and cheap.  ... 
doi:10.1109/tmm.2004.830817 fatcat:mun4ai5tgfbrpfxhemht6oa3ze

PCRTT Enhancement for Off-Line Video Smoothing

Ofer Hadar, Reuven Cohen
2001 Real-time imaging  
A n enhancement of the Piecewise Constant Rate Transmission and Transport (PCRTT) algorithm for reducing the burstiness of a video stream based on smoothing constant intervals is proposed.  ...  E-PCRTT is shown to construct transmission rate-plans with smaller buffer sizes, as compared to the original PCRTT, and alternatively, for the same buffer size, e-PCRTT reduces the number of bandwidth  ...  Acknowledgements We would like to thank Dr. Wu-chi Feng from the Department of Computer and Information Science, Ohio State University for the video streams database.  ... 
doi:10.1006/rtim.2001.0229 fatcat:iwf436qcobafhf2v5grebtp6vm

Improving HTTP-based video performance using network flow buffering

Jesse Steinberg, Joseph Pasquale
2010 The IEEE symposium on Computers and Communications  
The benefits of network flow buffering are numerous, and include reducing interruptions to playback, maintaining high video-image quality, and decreasing client-buffering requirements.  ...  We present network flow buffering, which is the use of a remote flow-regulating buffer that is deployed between a Web client and server to improve performance of HTTP-based playback of video.  ...  In doing so, it reduces the frame rate and picture quality, and ends up only retrieving 1.97MB (1966954 bytes), or about 25%, of the video.  ... 
doi:10.1109/iscc.2010.5546807 dblp:conf/iscc/SteinbergP10 fatcat:2kl2okwixjg5nhtm2rqf7lv5ky
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