Efficient multi-view video coding using inter-view information

Xin Xian Huang, Mei Juan Chen, Chia Hung Yeh*, Hao Wen Chi, Chia Yen Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Multi-view video coding (MVC) has been extended from H.264/AVC to improve the coding efficiency of multi-view video. This paper proposes a fast mode decision algorithm which can make an early decision on the correct mode partition to solve the issue of the enormous computational complexity. The best modes of the reference views are utilized to determine the complexity of the macroblock (MB) in the current view, the mode candidates needed to be calculated can then be obtained according to the complexity. If the complexity is low or medium, the search range can be reduced. The threshold of the rate-distortion cost for the current MB is calculated using the co-located and neighboring MBs in previously coded view and is utilized as the criterion for early termination. The motion vector difference in the reference view is applied to dynamically adjust the search range in the current MB. Experimental results prove that the proposed algorithm achieves a time saving of 81.05% for a fast TZ search and 87.85% for full search, and still maintains quality performance and bitrate.

Original languageEnglish
Pages (from-to)667-677
Number of pages11
JournalSignal Processing: Image Communication
Volume29
Issue number6
DOIs
Publication statusPublished - 2014 Jul
Externally publishedYes

Keywords

  • Disparity
  • Mode decision
  • Motion estimation
  • Multi-view video coding
  • Rate-distortion cost
  • Search range

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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