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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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Fast mode decision for 3D-HEVC depth intracoding.

Qiuwen Zhang1, Nana Li1, Qinggang Wu1

  • 1College of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China.

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Summary

This study introduces a faster method for 3D High Efficiency Video Coding (3D-HEVC) depth intracoding. By leveraging correlations between texture video and depth maps, it significantly cuts down encoding time without sacrificing coding efficiency.

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Video Compression

Background:

  • 3D High Efficiency Video Coding (3D-HEVC) builds upon Multiview Video Coding (MVC).
  • Current 3D-HEVC depth intracoding uses Depth Modeling Mode (DMM) and HEVC intraprediction for optimal coding efficiency.
  • The complexity of this method leads to excessive encoding times, hindering practical application.

Purpose of the Study:

  • To propose a fast mode decision algorithm for 3D-HEVC depth intracoding.
  • To reduce the computational complexity of 3D-HEVC depth intracoding.
  • To maintain coding efficiency while decreasing encoding time.

Main Methods:

  • A novel algorithm exploiting the correlation between texture video and depth maps is introduced.
  • The method skips specific depth intraprediction modes with low usage frequency in corresponding texture Coding Units (CUs).
  • The algorithm focuses on optimizing the mode selection process in depth intracoding.

Main Results:

  • The proposed algorithm significantly reduces the computational complexity of 3D-HEVC depth intracoding.
  • Coding efficiency is maintained at levels comparable to existing methods.
  • The algorithm demonstrates a substantial decrease in encoding time.

Conclusions:

  • The developed algorithm offers an effective solution for reducing 3D-HEVC depth intracoding complexity.
  • Leveraging texture-depth correlation is a viable strategy for accelerating video coding.
  • The findings pave the way for more practical applications of 3D-HEVC technology.