Department of Computer Science, City University of Hong Kong, Kowloon, Hong Kong.
IEEE Trans Image Process. 2012 May;21(5):2607-18. doi: 10.1109/TIP.2012.2186148. Epub 2012 Jan 26.
Fast mode decision algorithms have been widely used in the video encoder implementation to reduce encoding complexity yet without much sacrifice in the coding performance. Optimal stopping theory, which addresses early termination for a generic class of decision problems, is adopted in this paper to achieve fast mode decision for the H.264/Scalable Video Coding standard. A constrained model is developed with optimal stopping, and the solutions to this model are employed to initialize the candidate mode list and predict the early termination. Comprehensive simulation results are conducted to demonstrate that the proposed method strikes a good balance between low encoding complexity and high coding efficiency.
快速模式决策算法已被广泛应用于视频编码器的实现中，以降低编码复杂度，同时在编码性能方面几乎没有牺牲。本文采用最优停止理论来实现 H.264/可伸缩视频编码标准的快速模式决策，该理论解决了一般决策问题的早期终止问题。提出了一种带有最优停止的约束模型，并将该模型的解用于初始化候选模式列表和预测早期终止。综合仿真结果表明，所提出的方法在低编码复杂度和高编码效率之间取得了良好的平衡。
