MOVING PICTURES ENCODER/DECODER AND A METHOD FOR DETERMINING A BLOCK MODE FOR ENCODING/DECODING MOVING PICTURES IN THE MOVING PICTURES ENCODER/DECODER, PARTICULARLY FOR MINIMIZING IMAGE QUALITY DEGRADATION AND GENERATED BIT AMOUNT

摘要

PURPOSE: Moving pictures encoder/decoder and a method for determining a block mode for encoding/decoding moving pictures in the moving pictures encoder/decoder are provided to efficiently reduce the operation amount of the encoder/decoder by increasing the speed of a motion prediction operation.;CONSTITUTION: When a video frame is inputted to a video encoder, a motion estimator performs the motion prediction of 44, 88 and 1616 blocks(S70,S72). The video encoder determines candidate modes(S74), and calculates a rate-distortion value for each candidate mode(S76). In addition video encoder determines an optimal block mode(S78), and encodes a video frame(S80).;COPYRIGHT KIPO 2011