New adaptive pixel decimation for block motion vector estimation

Yui Lam Chan, Wan Chi Siu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

90 Citations (Scopus)


A new adaptive technique based on pixel decimation for the estimation of motion vector is presented. In a traditional approach, a uniform pixel decimation is used. Since part of the pixels in each block do not enter into the matching criterion, this approach limits the accuracy of the motion vector. In this paper, we select the most representative pixels based on image content in each block for the matching criterion. This is due to the fact that high activity in the luminance signal such as edges and texture mainly contributes to the matching criterion. Our approach can compensate the drawback in standard pixel decimation techniques. Computer simulations show that this technique is close to the performance of the exhaustive search with significant computational reduction.
Original languageEnglish
Pages (from-to)113-118
Number of pages6
JournalIEEE Transactions on Circuits and Systems for Video Technology
Issue number1
Publication statusPublished - 1 Dec 1996

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


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