[UCI-Calit2] Monitoring video quality inside a network

Anna Lynn Spitzer aspitzer at calit2.uci.edu
Mon Mar 8 11:59:54 PST 2010


Title:                                     Monitoring Video Quality
Inside a Network

 

Speaker:                              Dr. Amy Reibman, AT&T Labs

 

Time:                                    11 a.m. noon

 

Date:                                     Friday, March 12, 2010

 

Location:                             Donald Bren Hall 6011     

     

 

Abstract:                              As broadband access connectivity
becomes more prevalent, more users are streaming video over the
Internet, or watching video that has been transmitted over a network.
However, the best-effort service model and shared infrastructure of most
networks means that network impairments (such as delays, jitter,
congestion and loss) may affect viewing experiences. Network service
providers are increasingly interested in measuring the quality of the
video that is provided on their network.  This can aid in monitoring
compliance of service-level agreements (SLAs) between Internet Service
Providers (ISPs), hosting centers, and content providers; alert
operators to potential performance problems; and help in root-cause
analysis and debugging.

 

Reibman considers the problem of evaluating the quality of transported,
compressed video from the perspective of a network service provider.
Traditional video quality metrics require original and decoded pixels to
be available. However, neither are easily available inside the network.
Therefore, we have developed no-reference techniques that estimate
visual quality, relying only on (potentially lossy) bitstreams available
inside the network.

 

In this talk Reibman present an overview of the problem with measuring
video quality in the network and presents two quality metrics: one for
broadcast MPEG-2 video and the other for streaming video over the
Internet.

 

Speaker Bio:                      Amy R. Reibman was a distinguished
lecturer in the IEEE Signal Processing Society from 2008-2009.  She
received the B.S., M.S.  and Ph.D. degrees in electrical engineering
from Duke University in 1983, 1984 and 1987, respectively. From 1988 to
1991, she was an assistant professor in the Department of Electrical
Engineering at Princeton University. In 1991 she joined AT&T Bell
Laboratories, and became a distinguished member of the technical saff in
1995. She is currently a lead member of the technical staff in the
Communication Sciences and Artificial Intelligence Research Department
at AT&T Laboratories.

 

Reibman was elected IEEE Fellow in 2005, for her contributions to video
transport over networks. In 1998, she won the IEEE Communications
Society Leonard G.  Abraham Prize Paper Award.  She was the technical
co-chair of the IEEE International Conference on Image Processing in
2002; the technical co-chair for the First IEEE Workshop on Multimedia
Signal Processing in 1997; and the technical chair for the Sixth
International Workshop on Packet Video in 1994.

 

Her research interests include video compression systems for transport
over packet and wireless networks, video quality estimation,
super-resolution image and video enhancement, and 3-D and multiview
video.

 

More information:          Hamid Jafarkhani, hamidj at uci.edu

 

 

 

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