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Enhanced Diamond Search Using Four-Corner-Based Inner Search For Fast Block Motion Estimation

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3 Author(s)
Lai-Man Po ; Dept. of Electron. Eng., City Univ. of Hong Kong ; Chi-Wang Ting ; Ka-Ho Ng

This paper proposes a very efficient and simple fine-resolution inner search for the well-known diamond search (DS) algorithm. Based on the local unimodal error surface assumption, a new 4-corner-based inner search technique is proposed to speedup the original DS in both large and small motion environments by exploiting the group-distortion information of some evaluated points. Experimental results show that the enhanced diamond search (EDS) is faster than the original DS up to 30% with negligible PSNR degradation

Published in:

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on  (Volume:2 )

Date of Conference:

14-19 May 2006