Sub-Pixel Motion Estimation Scheme Using Selective Interpolation

Junsang CHO  Gwanggil JEON  Jungwook SUH  Jechang JEONG  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.12   pp.4078-4080
Publication Date: 2008/12/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.12.4078
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Multimedia Systems for Communications
motion estimation,  sub-pixel motion vector,  selective interpolation,  

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Current sub-pixel motion estimation algorithm is time and memory-consuming when performing image compression and communication. So we propose a selective interpolation method for sub-pixel motion estimation. We applied selective interpolations after estimating a candidate for sub-pixel accuracy motion vector from the simplest mathematical model. According to simulation results, the proposed method attains nearly the same performance as the full-search for half-pixel motion estimation with much lower computational complexity.