Compressed video decoding method compressed video encoding apparatus, compressed video decoding apparatus, compression and video encoding method

摘要

Image regions most similar to the image area of ​​the video input signal is searched for in the reference image from the frame memory 10, a motion vector is generated. And a reference image from the frame memory and the motion vector, the reference image and the motion compensation is generated. By the subtraction of the input video signal and the reference image that has been motion compensated, prediction residual is generated. By the addition of the reference image and the motion compensated result of the inverse orthogonal transform processing and inverse quantization processing and quantization processing and orthogonal transformation processing of the prediction residual, the reference image stored in the memory is generated. It is a moving picture compression encoding apparatus by the variable length coding process and the quantization process and the orthogonal transform processing of the prediction residual, the encoded video output signal is generated. And a screen outside the reference image D outside the video display screen screen reference image A inside the video display screen, B, and C, the reference image similar screen reference image A, B, and C are off-screen reference picture D A reference image of a plurality of, is generated based on the positional relationship of B.