Method and apparatus for estimating motion

摘要

An ME method and an apparatus thereof for use in an image codec. The ME method includes: selecting at least one prediction mode whose integer pixel motion estimation (IPME) result cost is relatively low among a plurality of prediction modes based on IPME results for each of the plurality of prediction modes including blocks of various sizes; and performing a sub-pixel motion estimation (SPME) using the selected at least one prediction mode.