摘要
面向3D高清的国家广电行业标准AVS+较大地提高了编码效率,但也增加了编码复杂度,并行编码技术是解决高复杂度编码器的有效方法。该文改变了传统视频编码的反馈环,提出一种新的视频并行编码框架,有效地实现了编码的并行化;并将该框架应用于AVS+实时编码器中,实现了一种基于AVS+实时编码的并行算法。实验结果表明,该算法充分发挥多核处理器的运算能力,在编码性能损失极小,编码延迟可控的条件下极大地提高了视频编码速率。
The national TV industry standard AVS＋, which faces the demand of 3D and high definition, got a high progress in coding efficiency, but it also increases complexity. Parallel coding technique is an efficient solution to deal with high-complex encoder. A new parallel video coding framework is proposed by changing the traditional video coding back feed loop to realize efficient parallel coding. The framework is applied to the AVS＋ real-time encoder, and implements a parallel video coding algorithm based on AVS＋real-time coding. Experimental results demonstrate that, the algorithm makes full use of the computing ability of the multi-core processor, and improves the video coding rate significantly.
出处
《电子与信息学报》
EI
CSCD
北大核心
2014年第4期810-816,共7页
Journal of Electronics & Information Technology
基金
电子信息产业发展基金(1213711)
国家自然科学基金(271212)
上海市科委重点项目(2511502502)资助课题
