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Abstract

A system and method for high definition video rescaling comprises receiving a source image including source pixels each having an associated amplitude, creating destination pixel locations for a rescaled image in accordance with a resealing factor, providing a normalized filter function, multiplying the normalized filter function with the amplitude of each source pixel to produce a filter function for each source pixel, and summing together the filter functions for the source pixels to generate a reconstructed function. The reconstructed function is sampled at the destination pixel locations to provide amplitudes for destination pixels. The amplitudes of the destination pixels are then incorporated into a rescaled image. The filter function is preferably a sinc product function. The sinc product function is a first sinc function having a first period multiplied by a second sinc function having a second period that is an odd integer multiple of the first period, so that the sinc product function has a smaller amplitude than a sinc function as the function converges to zero.

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First Claim