Title :
Adaptive rate control for H.264
Author :
Li, Z.G. ; Pan, F. ; Lim, K.P. ; Lin, X. ; Rahardj, S.
Author_Institution :
Media Div., Inst. for Infocomm Res., Singapore, Singapore
Abstract :
This paper presents a rate control scheme for H.264 by introducing the concept of basic unit and a linear prediction model. The basic unit can be a macroblock (MB), a slice, or a frame. It can be used to obtain a trade-off between the overall coding efficiency and the bits fluctuation. The linear model is used to solve the chicken and egg dilemma existing in the rate control of H.264. Both constant bit rate (CBR) and variable bit rate (VBR) cases are studied. Our scheme has been adopted by H.264.
Keywords :
adaptive control; code standards; image coding; linear predictive coding; rate distortion theory; variable rate codes; CBR; H.264 code standard; MB; VBR; adaptive rate control; coding efficiency; constant bit rate; linear prediction model; macroblock; variable bit rate; Adaptive control; Bit rate; Head; PSNR; Predictive models; Programmable control; Quantization; Rate-distortion; Statistics; Testing;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1419405
