| 摘要 |
A method and apparatus for resizing a digital video image composed of a plurality of source pixels which are resized to a plurality of target pixels using a technique which 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; andscaling, with its associated coefficient, the amount of point brightness energy of each source pixel whose area span appears within any given sample aperture.
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