Fast Coding Unit Size Decision in HEVC Intra Coding

被引：4

作者：

Fan, Tao ^{[1
]}

Wang, Guozhong ^{[1
]}

Shang, Xiwu ^{[1
]}

机构：

[1] Shanghai Univ, Sch Commun & Informat Engn, 333 Nanchen Rd, Shanghai 200444, Peoples R China

来源：

IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS | 2016年 / E99D卷 / 07期

基金：

美国国家科学基金会;

关键词：

HEVC; CU; size decision; intra coding; MODE DECISION; ALGORITHM;

D O I：

10.1587/transinf.2015EDL8231

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The current high efficiency video coding (HEVC) standard is developed to achieve greatly improved compression performance compared with the previous coding standard H.264/AVC. It adopts a quadtree based picture partition structure to flexibility signal various texture characteristics of images. However, this results in a dramatic increase in computational complexity, which obstructs HEVC in real-time application. To alleviate this problem, we propose a fast coding unit (CU) size decision algorithm in HEVC intra coding based on consideration of the depth level of neighboring CUs, distribution of rate distortion (RD) value and distribution of residual data. Experimental results demonstrate that the proposed algorithm can achieve up to 60% time reduction with negligible RD performance loss.

引用

页码：1953 / 1956

页数：4

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