A novel rate control initialization algorithm for H.264

Author

Wu, Wei ; Kim, Hae Kwang

Author_Institution

Dept. of Comput. Sci. & Eng., Sejong Univ., Seoul, South Korea

Volume

55

Issue

2

fYear

2009

fDate

5/1/2009 12:00:00 AM

Firstpage

665

Lastpage

669

Abstract

This paper presents a novel rate control initialization algorithm for H.264. Firstly the first instantaneous decoding refresh frame in a video sequence is intra-coded to get the mean absolute difference (MAD) value, then the average MAD value of the second, third and fourth frames which are inter-coded is computed, finally the initial quantization parameter is determined depending on the bits per pixel and the two MAD values. When compared with the algorithm JVT-G012 (2003) which is the current recommended algorithm implemented in the H.264 reference software JM13.0 and the algorithm by H.Wang and S.Kwong (see IEEE Trans. Circuits Syst. Video Techno!., vol.18, no.1, p.140-4, Jan. 2008), the proposed algorithm can increase the average peak signal-to-noise ratio of reconstructed video by up to 1.241 dB and 1.262 dB, respectively.

Keywords

decoding; image reconstruction; image sequences; spatiotemporal phenomena; telecommunication control; video coding; video communication; H.264 rate control initialization algorithm; H.264 reference software JM13.0; IDR frame intra-code; JVT-G012 algorithm; MAD value; average peak signal-to-noise ratio; bits per pixel; decoding refresh frame; initial quantization parameter; mean absolute difference value; spatial-and-temporal characteristics; video communication; video reconstruction; video sequence; Bit rate; Communication system control; Computer science; Decoding; PSNR; Quadratic programming; Quantization; Radio control; Software algorithms; Video sequences; absolute difference, quantization parameter, peak signal-tonoise; rate control initialization, H.264, mean; tonoise;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2009.5174437

Filename

5174437