DEVICE AND METHOD FOR ENCODING MOVING PICTURE CONSISTING OF MULTICOLOR IMAGE AND DEVICE AND METHOD FOR DECODING MOVING PICTURE CONSISTING OF MULTICOLOR IMAGE

摘要

PROBLEM TO BE SOLVED: To highly compress data by efficiently obtaining difference data when a moving picture consisting of multicolor images is encoded and decoded. ;SOLUTION: The encoding device for the moving picture consisting of multicolor images generates the moving picture by making successive frames of still images consisting of color pixel data given index codes. Then the device is provided with a block dividing means which divides a frame of interest to be encoded into blocks each consisting of N×N pixels (N: integer larger than 4) and a motion compensating means 2 which calculates the difference between a block in the frame of interest and a corresponding block in a reference frame and gives an index code '0' to the pixel of the part when the difference is '0'. Further, reverse algorithm is used for decoding.;COPYRIGHT: (C)1999,JPO