Abstract

Multiview video plus depth (MVD), which consists of a texture image and its associated depth map, has been introduced as a 3D video format, and 3D video coding, such as 3D-HEVC, was developed to efficiently compress this MVD data. However, this requires high encoding complexity because of the additional depth coding. In particular, intra coding using various prediction modes is very complicated. To reduce the complexity, we propose a fast depth intra mode decision method based on mode analysis. The proposed method adaptively reduces the number of original candidate modes in a mode decision process. Experimental results show that the proposed method achieves high performance in terms of the complexity reduction.

Highlights

  • To efficiently transmit high quality video contents over a limited bandwidth, HEVC [1] was developed by the Joint Collaborative Team on Video Coding (JCT-VC), which was established by the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG)

  • Data for these views is input to 3D-HEVC, as displayedofinleft, Figure

  • This paper proposed the fast intra mode decision method in 3D-HEVC depth coding

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Summary

Introduction

To efficiently transmit high quality video contents over a limited bandwidth, HEVC [1] was developed by the Joint Collaborative Team on Video Coding (JCT-VC), which was established by the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG). Since it includes lots of advanced techniques, such as advanced motion vector prediction modes for inter coding and various angular prediction modes for intra coding, very high coding efficiency is obtained. The mode decision process with RD optimization places a very high computational burden on HEVC encoders

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