Patent ID: 6442205
Filing Date: 2002-08-27
Classification: H04N

Abstract:
A method of global motion compensation, comprising:calculating the motion vectors for all pixels in an image by effecting the linear interpolation and/or extrapolation of the motion vectors at three representative points for the image, and assuming sampling intervals of the pixels to be 1 in both horizontal and vertical directions with respect to the image, and assuming sampling points for which horizontal and vertical components of coordinates of the sampling points are both integers, wherein the three points used as the representative points are selected from among four points of which the coordinates are (i, j), (i+p, j), (i, j+q), and (i+p, j+q) (where i and j are integers, and p and q are positive integers), and wherein p and q are 2&agr; and 2&bgr; (&agr; and &bgr; are positive integers), respectively.