Cart (Loading....) | Create Account
Close category search window
 

Constrained bit-rate control for very low bit-rate streaming-video applications

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
$31 $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

2 Author(s)

We propose a low-complexity frame-layer bit-rate control algorithm for very low bit-rate streaming-video applications with causal one-pass processing. Rate control is achieved by jointly adapting the frame rate and quantization step-size. Constraint coding is introduced, which forces the encoder to operate within a subset of operating points on a 2-D grid. The control parameters are also constrained to change in a gradual fashion, allowing bits to be saved in easy scenes so that more bits can be used for difficult scenes. A simple scene-change detector is used to insert intra frames at scene-change boundaries. The proposed algorithm is implemented in H.263 and is compared with the case of fixed control parameters and a conventional off-line bit-rate control based on adapting the quantization step-size. It is shown that the proposed algorithm codes more frames over a given time interval while achieving average PSNR gains over 1 dB and reducing bit-rate fluctuations. Results are confirmed by subjective tests, which show that our bit-rate control consistently provides improved visual quality

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:11 ,  Issue: 7 )

Date of Publication:

Jul 2001

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.