Concealment driven bit rate reduction using the H.264 video coding standard

Steven T. C. Beesley; Andrew J. Armstrong; Christos Grecos; David J. Parish

doi:10.1117/12.643086

2 February 2006 Concealment driven bit rate reduction using the H.264 video coding standard

Steven T. C. Beesley, Andrew J. Armstrong, Christos Grecos, David J. Parish

Proceedings Volume 6074, Multimedia on Mobile Devices II; 607403 (2006) https://doi.org/10.1117/12.643086
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

With the continual increase in both popularity and power of portable multimedia devices, it is often desirable to stream video across telephone networks using modern encoding standards, even when the transmission network has only limited bandwidth available. This paper demonstrates an alternative use of the passive error concealment algorithm that is currently used in the H.264 video coding standard. As each macroblock is encoded a concealed version is also generated in the same way that a decoder would conceal an erroneous macroblock. Occasionally the concealed version is mathematically closer to the original source than the normally reconstructed version, in these cases the macroblock is flagged as containing no data and is not included in the bit stream. The decoder then uses the already present weighted pixel value averaging concealment technique to reconstruct the flagged macroblocks as it renders the picture. The proposed method has been tested over a wide variety of test sequences at various sizes and qualities; the outcome of the research is that for almost identical mathematical and visual metric results, a significant reduction in the bit stream size can be achieved, in some cases by as much as 5%.

Citation Download Citation

Steven T. C. Beesley, Andrew J. Armstrong, Christos Grecos, and David J. Parish "Concealment driven bit rate reduction using the H.264 video coding standard", Proc. SPIE 6074, Multimedia on Mobile Devices II, 607403 (2 February 2006); https://doi.org/10.1117/12.643086

ACCESS THE FULL ARTICLE

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