CONFERENCE PROCEEDINGS
Advanced Search
Home > Journals > Opt. Eng. > Volume 45 > Issue 9 > Article
1 September 2006 Adaptive joint source-channel coding for low-bit-rate conversational video communications with H.264 video codec
W.A.C. Fernando, S. Sharma, H. Kodikara Arachchi
Author Affiliations +
Optical Engineering, Vol. 45, Issue 9, 097007 (September 2006). https://doi.org/10.1117/1.2338589
Abstract
The high demand for multimedia applications has emphasized the requirement for newer methods for the transmission of video over low-bit-rate error-prone channels. H.264 video coding provides a versatile video coding format suitable for different network and storage applications. The versatility is exposed through a set of encoder control parameters. We investigate the effects of these parameters on the rate, distortion, and algorithm complexity and determine a suitable set of parameters, keeping the low bit-rate wireless channel in perspective. Rate-compatible punctured convolutional coding is used to produce code rates varying from 8/9 to 1/4 using the same encoder and the same Viterbi decoder. A feedback-based adaptive forward error correction (FEC) technique is developed to use the rate compatible codes in the transmission of video, which is especially vulnerable to transmission errors because of the high compression using predictive coding. The proposed system is used to perform joint source-channel coding of video and to study the effects over mobile channel over various Eb/N0 values. The results are used to develop a channel-adaptive system for the transmission of video over low bit-rate channels. Frame-by-frame adaptation of the video to the channel conditions is simulated to demonstrate that proposed channel-adaptive joint source-channel coding of H.264 video could utilize the available channel capacity more efficiently than a fixed-coding-based system when transmitting over low-bit-rate error-prone channels.
©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)
Citation Download Citation
W.A.C. Fernando, S. Sharma, and H. Kodikara Arachchi "Adaptive joint source-channel coding for low-bit-rate conversational video communications with H.264 video codec," Optical Engineering 45(9), 097007 (1 September 2006). https://doi.org/10.1117/1.2338589
Published: 1 September 2006
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $24.00
Non-members: $28.00 ADD TO CART
JOURNAL ARTICLE
 13 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Video
Video coding
Computer programming
Forward error correction
Optical engineering
Distortion
Video compression
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top