首页> 外文期刊>Journal of visual communication & image representation >Rough mode cost-based fast intra coding for high-efficiency video coding
【24h】

Rough mode cost-based fast intra coding for high-efficiency video coding

机译:基于粗模式成本的快速帧内编码,用于高效视频编码

获取原文
获取原文并翻译 | 示例
           

摘要

The quadtree-based coding unit (CU) and transform unit (TU) structure, as well as various prediction units (PUs) of HEVC, considerably increase encoding complexity in intra coding and inter coding. This paper proposes a rough mode cost (RMC)-based algorithm for accelerating CU/TU depth decisions and PU mode decisions in HEVC intra coding. For CU depth decisions, RMC values are used for the fast determination of CU partition. In the case of PU mode decisions, modes with higher RMCs are removed from the candidate list to reduce the number of test modes. For TU depth decisions, the TU partition of the mode with the least RMC is used to determine the TU partitions of remaining modes. The proposed TU partitioning method demonstrates superior performance to the default method in reference software. The proposed algorithm can reduce encoding time by approximately 51% on average, with a 0.69% increase in the Bjontegaard-Delta (BD) rate. (C) 2016 Published by Elsevier Inc.
机译:基于四叉树的编码单元(CU)和变换单元(TU)的结构以及HEVC的各种预测单元(PU)大大增加了帧内编码和帧间编码的编码复杂度。本文提出了一种基于粗糙模式成本(RMC)的算法,用于加速HEVC帧内编码中的CU / TU深度决策和PU模式决策。对于CU深度决策,RMC值用于快速确定CU分区。在PU模式决策的情况下,具有较高RMC的模式将从候选列表中删除,以减少测试模式的数量。对于TU深度决策,具有最小RMC的模式的TU分区用于确定其余模式的TU分区。所提出的TU分区方法展示了优于参考软件中默认方法的性能。所提出的算法平均可减少约51%的编码时间,而Bjontegaard-Delta(BD)速率可提高0.69%。 (C)2016由Elsevier Inc.发布

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号