MOTION ESTIMATION SYSTEM AND METHOD THEREOF, DISPLAY CONTROLLER COMPRISING THE SYSTEM, AND ELECTRONIC DEVICE COMPRSING THE CONTROLLER

摘要

A motion estimation system is provided. The motion estimation system comprises an initializing module and a candidate test module. The initializing module generates a first initial motion field by allocating an initial motion vector to each block of a first motion field related to a first motion change in an image which is changed when a (n-1)^th frame is switched to a n^th frame; and generates a second initial motion field by allocating an initial motion vector to each block of a second motion field related to a second motion change in an image which is changed when the n^th frame is switched to the (n-1)^th frame. The candidate test module generates first and second random motion fields by comparing a similarity function value between the initial motion vector and a random motion vector allocated to each block of the first and second initial motion fields; generates first and second spatial propagation motion fields by comparing a similarity function value between a motion vector and an adjacent block allocated to each block of first and second fields; and generates first and second optimal motion fields by comparing a similarity function value between a motion vector allocated to the first spatial propagation motion field and a motion vector allocated to the second spatial propagation motion field.