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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (1): 136-141    DOI: 10.3785/j.issn.1008-973X.2012.01.22
信息工程     
H.264 SVC层间预测选择快速算法
黄爱爱,陈耀武
浙江大学 数字技术及仪器研究所, 杭州 310027
Fast inter-layer prediction algorithm for scalable video coding
HUANG Ai-ai, CHEN Yao-wu
Institute of Advanced Digital Technology and Instrumentation, Zhejiang University, Hangzhou 310027,China
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摘要：

针对H.264 SVC采用层间预测编码工具而引起的高计算复杂度问题,提出H.264 SVC层间预测选择快速算法.在层间残差预测方面,先作一次运动搜索,估计宏块在2种层间残差预测选择结果之间的模式代价比,利用该模式代价比预测残差数据对增强层宏块编码的影响,从而快速选择层间残差预测.在层间运动预测方面,利用宏块的运动信息和模式代价信息来快速选择层间运动预测.实验结果表明,与参考算法相比,该算法在同等质量条件下,编码速度平均提高了30%左右.该算法可以与模式选择快速算法结合使用,进一步提高编码速度．
Abstract:

The scalable video coding (SVC) uses the inter-layer prediction tool to explore the redundancy between the video layers, which results in much higher computational complexity. A novel fast inter-layer prediction algorithm was proposed for SVC. For the interlayer residual prediction, the effect of the reference layer’s residual data upon the enhancement layer’s coding was predicted by estimating the mode-cost-rate in advance. Then the choice of inter-layer residual prediction was decided based on the estimated mode-cost-rate. For the inter-layer motion prediction, both the motion vector information and the mode cost information were employed to decide the inter-layer motion prediction. The algorithm can reduce the encoding time by 30% on average with negligible loss of quality compared with the reference algorithm. The algorithm can be flexibly combined with other fast mode decision algorithm and further accelerate the coding performance．
出版日期: 2012-02-22
:  TN 919.81  
基金资助:

浙江省重大科技资助项目(2009C11035).
通讯作者: 陈耀武，男，教授，博导.     E-mail: cyw@mail.bme.zju.edu.cn
作者简介: 黄爱爱(1982-)，女，博士生，从事视频编码技术研究. E-mail：huangaiai@zju.edu.cn
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引用本文:

黄爱爱,陈耀武. H.264 SVC层间预测选择快速算法[J]. J4, 2012, 46(1): 136-141.

HUANG Ai-ai, CHEN Yao-wu. Fast inter-layer prediction algorithm for scalable video coding. J4, 2012, 46(1): 136-141.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.01.22    或    http://www.zjujournals.com/eng/CN/Y2012/V46/I1/136

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