基于决策树的快速帧间预测AV1编码
Fast Inter-Prediction based on Decision Trees for AV1 encoding
摘要：
由于使用了许多先进的工具和改进，如先进的帧间预测模式，AOMedia Video 1（AV 1）标准可以实现相当高的压缩效率。然而，这些都是以编码器的高计算复杂度为代价的，这可能会限制该标准在实际应用中的益处。本文表明，并非所有序列都受益于使用所有这些模式，这表明可以引入一些编码器优化来加速AV 1编码。提出了一种基于决策树的帧间模式检测方法，用于有选择地判断是否检测所有帧间模式。提取适当的特征并用于对每个块执行决策。实验结果表明，该方法在对编码效率影响不大的情况下，平均可减少43.4%的编码时间.
英文摘要：
The AOMedia Video 1 (AV1) standard can achieve considerable compression efficiency thanks to the usage of many advanced tools and improvements, such as advanced inter-prediction modes. However, these come at the cost of high computational complexity of encoder, which may limit the benefits of the standard in practical applications. This paper shows that not all sequences benefit from using all such modes, which indicates that a number of encoder optimisations can be introduced to speed up AV1 encoding. A method based on decision trees is proposed to selectively decide whether to test all inter modes. Appropriate features are extracted and used to perform the decision for each block. Experimental results show that the proposed method can reduce the encoding time on average by 43.4\% with limited impact on the coding efficiency.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
