A Fast CU Depth Estimation Algorithm for HEVC Inter Coding
A Fast CU Depth Estimation Algorithm for HEVC Inter Coding
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DOI：
10.1109/icce-asia46551.2019.8941594
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发表时间：
2019-06
期刊：
影响因子：
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通讯作者：
Ei Ei Tun-Ei;S. Aramvith;Y. Miyanaga
中科院分区：
文献类型：
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作者：
Ei Ei Tun-Ei;S. Aramvith;Y. Miyanaga
本文提出一种基于遗传算法（GA）的快速编码单元（CU）深度估计算法。从多种可能性中找到每个编码树单元（CTU）的最佳分裂模式被表示为优化问题，并且该分裂模式由低复杂度优化器快速搜索。首次提出了合适的染色体结构和有效的适应度函数。实验结果表明，与HM16.5相比，该方法平均减少了69.2%的计算时间。与最先进的快速编码方法相比，所提出的方法在相当的 BD-PSNR 下平均可以节省 5.2% 的时间。
This paper proposes a fast coding unit (CU) depth estimation algorithm based on genetic algorithm (GA). Finding the optimal splitting pattern of each coding tree unit (CTU) from many possibilities is represented as an optimization problem and this splitting pattern is rapidly searched by a low-complexity optimizer. A suitable chromosome structure and an efficient fitness function are firstly proposed. The experimental results show 69.2% computational time on average can reduced by the proposed method compared with HM16.5. Compared with start-of-the-art fast encoding method, the proposed one can achieve 5.2% time saving on average under a comparable BD-PSNR.