METHOD AND ARCHITECTURE FOR CALCULATING MAE IN A MOTION ESTIMATOR

摘要

The present invention relates to an adder of a motion estimator, and more particularly, to an addition method and an adder structure for simplifying the interconnection of a pipelined adder to which a Wallace tree is applied. The matrix size is reduced in half by adding the matrix to the 4-input 2-output wallless tree. Divided into groups All intermediate result data were processed during the cycle, and the structure of the present invention is the first Wallace adder 40, the second Wallace adder 41, the third Wallace adder 42, and the fourth Wallace adder 43 ), A fifth Wallace adder 44, a sixth Wallace adder 45, a seventh Wallace adder 46, and a merge adder 47 for outputting an absolute error value MAE, and Two neighboring adder outputs from the stage wallless adder are input to the wallless adder of the next stage to simplify the interconnection between each module and reduce the number of hardware (wallis tree), thereby reducing chip area and cost in VLSI fabrication. This has the effect of being reduced.