Fast Mode Decision Based on Gradient Information in 3D-HEVC

被引：6

作者：

Zhang, Qian ^{[1
]}

Jing, Ruihai ^{[1
]}

Wang, Bin ^{[1
]}

Cui, Pengtao ^{[1
]}

Zhou, Chao ^{[1
]}

Yan, Tao ^{[2
]}

Kanyukt, Suraphon ^{[3
]}

Si, Wen ^{[3
,4
,5
]}

机构：

[1] Shanghai Normal Univ, Coll Informat Mech & Elect Engn, Shanghai 200234, Peoples R China

[2] Putian Univ, Sch Informat Engn, Putian 351100, Peoples R China

[3] Shanghai Business Sch, Coll Informat & Comp Sci, Shanghai 201400, Peoples R China

[4] Fudan Univ, Huashan Hosp, Dept Rehabil, Shanghai 200040, Peoples R China

[5] Univ S Florida, Coll Engn, Tampa, FL 33613 USA

来源：

IEEE ACCESS | 2019年 / 7卷

关键词：

Intra mode; 3D-HEVC; gradient information;

D O I：

10.1109/ACCESS.2019.2940706

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 3D extension of High Efficiency Video Coding (3D-HEVC) introduce Depth Modeling Mode (DMM) and 35 conventional intra modes to enhance the quality of coding, while bringing unacceptable computational complexity during the process of rough mode decision (RMD) and most probable mode (MPM). In this paper, we proposed a fast mode decision algorithm for texture map and depth map coding based on gradient information. Firstly, analyzing the characteristics of predict units (PU) in different intra mode applications that obtain the lowest RD-cost,then extracting the gradient information of PU to classify the PU into three types of gradient blocks and selecting appropriate candidate modes for the PU,thereby avoiding search each mode in coding process and skip the process of RMD and MPM early. Experimental results show that the proposed algorithm can achieve average 30.6% time saving with negligible reduction of coding performance.

引用

页码：155448 / 155456

页数：9

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