Patent ID: 6594404
Filing Date: 2003-07-15
Classification: G06T

Abstract:
A method of resizing a digital video image composed of a plurality of source pixels, the source pixels being resized by a resizing factor to a plurality of target pixels, which method comprises:expressing the point brightness energy associated with each source pixel as an area which spans two source pixel intervals, each said area span having a shape which is proportional to the energy distribution of the source pixel with time; creating for each target pixel a sample aperture of duration which is a function of the resizing factor; sampling the area spans with each sample aperture to provide, for each target pixel, a set of coefficients, each coefficient representing the proportion of an area span which is within the sample aperture; and scaling, with its associated coefficient, the amount of point brightness energy of each source pixel whose area span appears within any given sample aperture, to provide the amount of point brightness energy from that source pixel to be assigned to the target pixel of that aperture.