Implementation of four step search algorithm of motion estimation using FPGA
Maya Gaikwad · 2012
Motion estimation is one of the key elements of many video compression schemes. Motion estimation is the process of determining motion vectors that describe the transformation from one image to another; usually from adjacent frames in a video sequence. In this paper we discuss four-step search algorithm, which is a type of block matching algorithm and use for finding motion vector. Four-step search algorithm estimate the amount of motion on a block-by-block basis, i.e. for each block in the current frame, a block from the previous frame is found, that is said to match this block based on a certain criterion. We consider 64* 64 pixel images and find motion vector. This paper presents a feasible study of “Motion Estimation by using VHDL for four-step search algorithm”.