Video Compression Device Using Fractal and Motion Compensation and Its Compression Method

摘要

The present invention relates to a video compression apparatus using a fractal and motion compensation, and a compression method thereof. A fractal that transmits only a motion vector in a block having a small prediction error and performs a fractal compression on the original image in a block having a small prediction error after performing motion compensation. Motion estimation means (11) for estimating motion in order to provide a video compression apparatus using motion compensation and motion compression method thereof; Motion compensation means 12 for compensating for the motion; Area determining means (13) for setting a prediction error and a mask; Image generating means (14) for determining a compression mode of each block according to the mask; Fractal approximation compression means 15 for fractal compression; Fractal reproduction means 16 for reproducing the block; And image storage means (17) for storing the reproduced image, comprising: a first step (21, 22) of generating a predictive image by performing motion estimation and compensation; A second step (23, 24) of calculating a prediction error and comparing it with a threshold value; A third step (25, 28) of transmitting only a motion vector to a block whose prediction error is smaller than a threshold; And a fourth step (26 to 28) of fractal block compressing the input image to generate a fractal coefficient and transmitting the block to the outside, in which the block having a larger prediction error is larger than the threshold value. The effect is that a reduced quality image can be obtained.