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首页> 外文会议>International Conference on Computational Science and Its Applications(ICCSA 2006) pt.1; 20060508-11; Glasgow(GB) >Reduction of Mode Decision Complexity in H.264/AVC Using Adaptive Selection of Reference Frame and Intra Prediction Mode
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Reduction of Mode Decision Complexity in H.264/AVC Using Adaptive Selection of Reference Frame and Intra Prediction Mode

机译：使用参考帧和帧内预测模式的自适应选择降低H.264 / AVC中的模式决策复杂度

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摘要

Rate-constrained coding is one of the many coding-efficiency oriented tools of H.264/AVC, however, the mode decision process of Rate Distortion Optimization (RDO), is characterized by high computational complexity. Many fast mode decision algorithms have been proposed to reduce the computational complexity of mode decision. In this paper, two algorithms are proposed for reduction of mode decision in H.264/AVC, fast reference frame selection and selective intra prediction mode decision. Fast reference frame selection is efficient for inter predication, and selective intra prediction mode decision can effectively reduce excessive calculation load of intra prediction mode decision. The simulation results demonstrated that the proposed two methods applied together could reduce the encoding time of the overall sequences by an average of 44.63%, without any noticeable degradation in coding efficiency.
机译：速率受限编码是H.264 / AVC众多面向编码效率的工具之一，但是速率失真优化（RDO）的模式决策过程具有较高的计算复杂度。已经提出了许多快速模式决策算法以减少模式决策的计算复杂度。本文提出了两种减少H.264 / AVC模式决策的算法，即快速参考帧选择和选择性帧内预测模式决策。快速参考帧选择对于帧间预测是有效的，并且选择性帧内预测模式决策可以有效地减少帧内预测模式决策的过多计算负荷。仿真结果表明，所提出的两种方法一起使用可以平均减少整个序列的编码时间44.63％，而编码效率没有任何明显的下降。

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