EPZSEnhanced Predictive Zonal Search
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The ME process is carried out in ME block by using ME search algorithms such as EPZS, UMHex and SUMHex etc.
Three ME search algorithms, EPZS, SUMHex search and UMHex search are evaluated for H.
Enhanced Predictive Zonal Search (EPZS) Algorithm: EPZS is an improvement of Predictive Motion Vector Field Adaptive Search Technique (PMVFAST) and Advanced Predictive Diamond Zonal Search (APDZS) (Tourapis et al.
EPZS uses the fact that MVs are highly correlated with the MVs of neighboring blocks in the previous frames.
For video sequences having high and moderate motion activity, EPZS takes noticeable less time as compare to other two ME algorithms.