期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：49
期号：3
出版社：Journal of Theoretical and Applied
摘要：A rate control algorithm for multi-view video coding based on visual perception is proposed. The algorithm is performed on four levels, namely view level, group-of-picture (GOP) level, frame level and macro-block level. In the view level, we pre-encode a GOP to obtain the bitrates proportion among the views. In the GOP level, the initial quantization parameter and the target bits are calculated for the GOP combined with the feature of hierarchical B pictures (HBP). In the frame level, bits allocation is decided by the predicted complexity of the frame. In the macro-block level, the rate distortion model is adjusted based on the visual perception. Experimental results show that the proposed algorithm can increase the quality of visual sensitive region by 0.18 dB to 0.54 dB and improve the subjective quality compared with the conventional approach.
关键词：Rate control; Multi-view video coding; Visual perception; Hierarchical B pictures
