摘要
为了提高对360°全景视频的编码效率,联合探索专家组研发了基于HEVC的下一代视频编码标准——多功能视频编码标准(Versatile Video Coding,VVC)。相对于HEVC,VVC具有更高的编码效率,但是也引入了更高的时间复杂度。因此为了降低其编码的计算复杂度,提出了一种针对VVC的帧内模式快速决策算法。通过分析图像块的纹理特性来减少帧内编码的候选模式数量从而减少模式选择中的冗余计算。实验结果表明,提出的算法可以节省24. 08%的编码时间同时只有0. 80%的BDrate损失。
In order to improve the coding efficiency of 360-degree panoramic video,the Joint Exploration Expert Group developed the next generation video coding standard based on HEVC,named Versatile Video Coding( VVC). Compared with HEVC,VVC has higher coding efficiency,but it also introduces higher time complexity. Therefore,in order to reduce the computational complexity,a fast intra mode decision algorithm for VVC is proposed. The texture characteristics of image blocks are analyzed to reduce the number of candidate modes for intra coding in order to reduce the redundant computation in mode selection. The experimental results show that the proposed algorithm can save 24. 08% encoding time with only 0. 80% BD-rate loss.
作者
钱鹏飞
王甯琪
张冬冬
Qian Pengfei;Wang Ningqi;Zhang Dongdong(College of Electronics and Information Engineering,Tongji University,Shanghai 201800,China)
出处
《信息技术与网络安全》
2019年第1期41-43,共3页
Information Technology and Network Security
基金
上海市科学技术委员会高新技术领域科研计划项目(17511110203)
