Fast VVC Intra Coding by Skipping Redundant Coding Block Structures and Unnecessary Directional Partition

2022 IEEE 5th International Conference on Multimedia Information Processing and Retrieval (MIPR) Pub Date : 2022-08-01 DOI:10.1109/MIPR54900.2022.00022

Ziheng Zhang, Chang-Hong Fu, Kai Xie, Hong Hong, Guan-Ming Su

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引用次数: 1

Abstract

The Joint Video Exploration Team (JVET) has released the latest video coding standard, Versatile Video Coding (H.266/VVC) in 2020. VVC adopts the quadtree with nested multi-type tree (QTMT) coding block structure which brings huge computational burden. To solve this problem, we design a fast intra coding algorithm based on skipping redundant coding block structures and unnecessary directional partition in VVC. First, we analyze the coding block partition of I frames in VVC and find that there are still some redundant partitions. Based on this, a redundant partition skipping (RPS) scheme is designed. Secondly, we aim at skipping the unnecessary directional partition (DPS) in VVC. It is inspired by the correlation between the optimal coding unit (CU) partition and other directional information such as: image texture direction, the directional intra prediction modes (IPM), intra Sub-partitions (ISP) mode. Compared with VTM-6.0, the proposed algorithms can achieve 26.46% time saving with only 0.45% BDBR increase in average.

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跳过冗余编码块结构和不必要的方向划分的快速VVC内部编码

联合视频探索小组(JVET)于2020年发布了最新的视频编码标准——通用视频编码(H.266/VVC)。VVC采用四叉树嵌套多类型树(QTMT)编码块结构，带来了巨大的计算负担。为了解决这个问题，我们设计了一种基于VVC中跳过冗余编码块结构和不必要的方向划分的快速内编码算法。首先，我们分析了VVC中I帧的编码块划分，发现仍然存在冗余划分。在此基础上，设计了冗余分区跳过(RPS)方案。其次，我们的目标是跳过VVC中不必要的定向分区(DPS)。它的灵感来自于最优编码单元(CU)划分与其他方向信息之间的相关性，如:图像纹理方向、方向内预测模式(IPM)、内子分区(ISP)模式。与VTM-6.0相比，本文提出的算法可节省26.46%的时间，平均仅增加0.45%的BDBR。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2022 IEEE 5th International Conference on Multimedia Information Processing and Retrieval (MIPR)

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