Coding statistics based fast mode decision for multi-view video coding

Chia Chi Chan, Chih Wei Tang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Reduction of high computational complexity of multi-view video coding (MVC) is necessary for realization in consumer electronics. Since mode decision is one of the key computational bottlenecks of multi-view video encoders, this paper proposes a coding statistics based fast mode decision algorithm. First of all, a rate-distortion cost based fast DIRECT mode decision algorithm early terminates the mode decision process if possible. Next, the candidates for Inter modes are reduced by taking the advantage of the correlation between an optimal mode and motion cost. The proper thresholds to reduce the candidates for the above two fast algorithms can be easily derived from exponential functions at run time. Finally, motion vector difference based motion characteristics is referred to further speed up the mode decision process of Inter modes. The experimental results show that the proposed scheme reduces up to 70.82% of encoding time with negligible degradation of RD performance.

Original languageEnglish
Pages (from-to)686-699
Number of pages14
JournalJournal of Visual Communication and Image Representation
Issue number6
StatePublished - 2013


  • DIRECT mode
  • Fast mode decision
  • Inter mode
  • Intra mode
  • Motion cost
  • Motion vector difference
  • Multi-view video coding
  • RD cost


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