An efficient skip mode competition scheme based on vector clustering and object boundary detection

Sungjei Kim, Sangjae Park, Jinwoo Jeong, Yoonsik Choe

Research output: Contribution to journalArticle


In video coding, a portion of skipped macroblocks is highly effective to the coding performance, especially, at low bitrates since, for a skip mode, no additional coding parameters are transmitted except mode index itself. To increase the skip mode occurrence, in this paper, we propose an efficient skip mode competition scheme based on vector clustering of multiple predictive motion vectors (PMV) and boundary detection of moving objects. The proposed scheme selects the best PMV of skip mode optimally among representative PMV candidates which are obtained after the clustering process and switches a more appropriate competition scheme adaptively according to object boundary conditions. Experimental results show that the proposed scheme reduces average 4.31% in BDRATE compared to the KTA 2.6 software.

Original languageEnglish
Pages (from-to)447-453
Number of pages7
Journalieice electronics express
Issue number6
Publication statusPublished - 2010 Mar 25


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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