By Topic

Stochastic rate-control of interframe video coders for VBR channels

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
J. Cabrera ; E.T.S. Ingenieros de Telecommunicacion, Univ. Politecnica de Madrid, Spain ; J. I. Ronda ; A. Ortega ; N. Garcia

We propose a new algorithm for the real-time control of an inter-frame video coder operating with a variable rate channel such as wireless channels or the Internet. Using techniques of stochastic dynamic programming we obtain off-line optimal policies from stochastic models of the channel and coder which minimize the average expected distortion. The on-line complexity of our approach is only that required to identify the state of the system (source and channel). The state of the channel is obtained based on the ARQ error-control mechanism, and the source state is computed as complexity measurements on each incoming frame. Simulation results based on this new approach are provided and compared to other proposed rate-control strategies. They show how our model-based optimal policies outperform the other considered approaches keeping a negligible on-line computational cost. This result is very interesting when considering an alternative to traditional costly solutions based on deterministic dynamic programming.

Published in:

Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on  (Volume:3 )

Date of Conference:

14-17 Sept. 2003