Efficient Inter Mode Prediction Based on Model Selection and Rate Feedback for H.264/AVC

Author

Lee, Kuan-I ; Tsai, An-Chao ; Wang, Jhing-Fa ; Yang, Jar-Ferr

Author_Institution

Realtek Semicond. Corp., Hsinchu, Taiwan

Volume

21

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

708

Lastpage

716

Abstract

H.264/AVC is a standard developed for various low-complexity video applications and high-definition television. To improve coding performance, H.264/AVC may optionally adopt the rate-distortion optimization (RDO) method to find the best encoding mode among various inter and intra modes. However, the exhaustive RDO search among different modes increases the H.264/AVC encoder complexity and limits its application. In this paper, we propose an inter mode prediction algorithm for P slices based on spatial and temporal consistency analysis to reduce the complexity of the RDO computation. We apply the stochastic method to analyze the spatial consistency and use rate information for temporal consistency. The experimental results show a 0.03 peak signal-to-noise ratio loss, a 0.87% bit rate increase, and a 58.39% encoding time reduction on average.

Keywords

high definition television; stochastic processes; video coding; H.264/AVC; high-definition television; inter mode prediction; low-complexity video applications; rate-distortion optimization method; signal-to-noise ratio; spatial consistency analysis; stochastic method; temporal consistency analysis; Automatic voltage control; Bit rate; Complexity theory; Computational modeling; Correlation; Encoding; Prediction algorithms; H.264/AVC; inter mode decision; spatial-temporal; stochastic analysis;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/TCSVT.2011.2129730

Filename

5734814