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

Windowing technique for the DCT based retinex algorithm to handle videos with brightness variations coded using the H.264

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

4 Author(s)
Hoi-Kok Cheung ; Sch. of Inf. Technol., Univ. of Sydney, Sydney, NSW ; Wan-Chi Siu, ; Dagan Feng ; Zhiyong Wang

Conventional block based motion estimators assume constant inter-frame object brightness. Pixel discrepancy is resulted primarily from motion factor without considering the influence of brightness changes. In this paper, we propose a simple and efficient windowing technique using the Hamming window and integrate it to our previously proposed algorithm. The algorithm is based on retinex approach using the DCT technique and designed to handle brightness variations. The new technique manages to greatly reduce the influence of ripple effect and further increase the compression efficiency without adding any extra overhead bits to the bit-stream. We applied the scheme to H.264 for testing. Experimental results show that the retinex based approach is an effective technique to handle inter-frame brightness variations and outperforms the H.264 system with weighted prediction enabled for sequence involving brightness variations. With our proposed windowing technique using the Hamming window, the coding efficiency can be further improved by a maximum of 0.17 dB.

Published in:

Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on

Date of Conference:

12-15 Oct. 2008

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.