APPARATUS AND METHOD FOR FAST MOTION ESTIMATION BASED ON REDUCED SEARCH RANGES

摘要

An apparatus and a method for estimating high speed motion by using a search area resetting are provided to perform motion estimation only within the set search area. A motion estimation member(170) includes a norm calculation member(210). The norm calculation member calculates the norm of a macro block with 16x16 unit at the entire position within the reference frame and the norm of the present macro block. An SAD(Sum of Absolute Distance) calculation member(220) calculates the SAD at the motion vector of (0,0) and sets the calculated result as the reference SAD. A search area setting member(230) divides the given macro block into nine rectangular search areas and sets the first search area.