Title :
A Study on the Low-Complexity Rate Control Algorithm for H.264/AVC
Author_Institution :
Sch. of Logistics, Beijing Normal Univ., Zhuhai, Zhuhai, China
Abstract :
A low-complexity rate control algorithm is proposed for the video coding standard H.264/AVC. First, through theoretical derivations, a new frame layer bit allocation scheme based on coding complexity is proposed. Considering the linear Mean Absolute Difference (MAD) prediction model employed in H.264/AVC being much complex in computation, we propose a weighted MAD prediction model by using the spatial and temporal connections. Experimental results show that compared with the rate control algorithm of H.264/AVC reference software, the proposed algorithm is more accurate in bit-rate control, and gains better video quality. At the same time, it reduces coding time significantly.
Keywords :
linear codes; prediction theory; video coding; H.264-AVC reference software; bit-rate control; coding complexity; frame layer bit allocation scheme; linear MAD prediction model; linear mean absolute difference prediction model; low-complexity rate control algorithm; spatial connection; temporal connection; video coding standard; video quality; Bit rate; Computational modeling; Encoding; Prediction algorithms; Predictive models; Software algorithms; Video coding; MAD prediction model; bit allocation; rate control;
Conference_Titel :
Computational and Information Sciences (ICCIS), 2012 Fourth International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4673-2406-9
DOI :
10.1109/ICCIS.2012.51
