Performance enhancement of H.264 codec by layered coding

Author

Roodaki, Hoda ; Rabiee, Hamid R. ; Ghanbari, Mohammad

Author_Institution

AICTC Res. Center, Sharif Univ. of Technol., Tehran

fYear

2008

fDate

March 31 2008-April 4 2008

Firstpage

1145

Lastpage

1148

Abstract

Transmission of video over error prone and still bandwidth limited wireless channels demand high compression efficiency and resilience to packet losses and errors. Scalable or layered video coding applied to highly compression efficient codecs is an ideal solution to the problem. However, scalability reduces compression efficiency of the coders. In this paper we show how compression efficiency of two-layer SNR scalable video coders can be retained via joint base-enhancement layer optimization. Simulation results show that joint base- enhancement layer optimization significantly outperforms separate optimization of the layers, and it closely follows the compression performance of the single-layer optimized codec.

Keywords

data compression; optimisation; video coding; video communication; H.264 codec; SNR scalable video coder; bandwidth limited wireless channel; joint base-enhancement layer optimization; layered video coding; multimedia communication; video compression; video transmission; Automatic voltage control; Bandwidth; Bit rate; Codecs; Decoding; Protection; Resilience; Scalability; Video coding; Video compression; Optimization methods; Video codecs;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on

Conference_Location

Las Vegas, NV

ISSN

1520-6149

Print_ISBN

978-1-4244-1483-3

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2008.4517817

Filename

4517817