Title :
A Rate Control Algorithm for Low-Delay H.264 Video Coding with Stored-B Pictures
Author :
Sanz-Rodriguez, Sergio ; de-Frutos-Lopez, M. ; Gonzalez-Diaz, Ivan ; Cid-Sueiro, Jesus
Author_Institution :
Dept. of Signal Theory & Commun., Carlos III Univ., Madrid, Spain
Abstract :
A rate control (RC) algorithm for H.264 video coding with stored-B (SB) pictures is proposed for low-delay applications. Different models for P and SB pictures are defined for a better QP and MAD estimation. Furthermore, a novel saw-tooth shaped model of target buffer level has also been introduced for a proper bit allocation in GOP structures with SB pictures. Our experimental results show that this proposal outperforms the reference software RC in terms of buffer occupancy and target bit rate adjustment at the expense of slight quality reduction.
Keywords :
video coding; H.264 video coding; bit allocation; bit rate adjustment; rate control algorithm; reference software; saw-tooth shaped model; stored-B pictures; target buffer level; Automatic voltage control; Bit rate; Communication system control; Delay effects; Motion compensation; Proposals; Quadratic programming; Radio control; Software quality; Video coding; H.264; bit allocation; low-delay; rate control; stored-B pictures;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366117
