Patent ID: 8073282
Filing Date: 2011-12-06
Classification: G06T

Abstract:
1. A device comprising: a single scaling filter to filter a video signal once to perform both sharpening and scaling; a memory to store original scaling filter coefficients for the scaling filter; and an integrated circuit to calculate new sharpening-scaling filter coefficients derived from the original scaling filter coefficients and one of sharpening filter coefficients for a sharpening filter and a sharpening strength and to apply the new sharpening-scaling filter coefficients to the single scaling filter; wherein the single scaling filter filters the video signal according to where x is the video signal; d i are the new sharpening-scaling filter coefficients; m denotes an even number of taps; s denotes the scaling ratio; q denotes a coordination index after scaling; and i is an index for a tap of the single scaling filter.