An Effective Global RD Formulation Based Mode Selection Algorithm for Wireless H.264 Communications

Author

Xu, Yanling ; Qin, Wenzhong

Author_Institution

Tongji Univ. Shanghai, Shanghai

fYear

2007

fDate

2-5 July 2007

Firstpage

368

Lastpage

371

Abstract

This paper provides effective schemes of global rate-distortion optimization for error resilient H.264 video transmission over wireless IP networks. A three-state Markov model is proposed to match wireless IP channels. It proposes per-pixel recursive computation to adaptively estimate the channel distortion. It introduces error drift weights to integrate into the distortion both temporal and spatial error propagations. Simulations demonstrate the considerable improvements in reconstructed image quality.

Keywords

IP networks; Markov processes; optimisation; video coding; wireless channels; H.264 video transmission; channel distortion; error resilient; global RD formulation; global rate-distortion optimization; mode selection; spatial error propagations; three-state Markov model; wireless H.264 communications; wireless IP channels; wireless IP networks; Delay; IP networks; Packet switching; Quantization; Recursive estimation; Resilience; Software algorithms; Software engineering; Wireless communication; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2007 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

1-4244-1016-9

Electronic_ISBN

1-4244-1017-7

Type

conf

DOI

10.1109/ICME.2007.4284663

Filename

4284663