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Open AccessArticle

A Complexity Reduction Scheme for Depth Coding in 3D-HEVC

1
College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
2
China National Digital Switching System Engineering & Technological R&D Center, Zhengzhou 450002, China
*
Author to whom correspondence should be addressed.
Information 2019, 10(5), 164; https://doi.org/10.3390/info10050164
Received: 9 March 2019 / Revised: 3 April 2019 / Accepted: 9 April 2019 / Published: 3 May 2019
(This article belongs to the Section Information Theory and Methodology)
3D-high efficiency video coding (3D-HEVC) is the next-generation compression standard for multiview system applications, which has recently been approved by MPEG and VCEG as an extension of HEVC. To improve the compression efficiency of depth map, several compression tools have been developed for a better representation depth edges. These supplementary coding tools together with existing prediction modes can achieve high compression efficiency, but require a very high complexity that restricts the encoders from ongoing application. In this paper, we introduce a fast scheme to reduce complexity of depth coding in inter and intramode prediction procedure. A simulation analysis is performed to study intra and intermode distribution correlations in the depth compression information. Based on that correlation, we exploit two complexity reduction strategies, including early SKIP and adaptive intra prediction selection. Experimental results demonstrate that our scheme can achieve a complexity reduction up to 63.0%, without any noticeable loss of compression efficiency. View Full-Text
Keywords: 3D video; complexity reduction; depth image 3D video; complexity reduction; depth image
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Zhang, Q.; Wang, Y.; Wei, T.; Jiang, B.; Gan, Y. A Complexity Reduction Scheme for Depth Coding in 3D-HEVC. Information 2019, 10, 164.

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