Scaling filter for video sharpening

Details Scaling filter for video sharpening Scaling filter for video sharpening

2007-07-23

2011-12-06

Werner, Brian (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C382S263000, C382S275000, C382S298000

Reexamination Certificate

active

08073282

ABSTRACT:
A device has a single scaling filter to filter a video signal once to perform both sharpening and scaling. A memory stores original scaling filter coefficients for the scaling filter. An integrated circuit calculates 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 applies the new sharpening-scaling filter coefficients to the single scaling filter.

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patent: WO 03036943 (2003-05-01), None
International Search Report and Written Opinion—PCT/US2008/070907, International Search Authority—European Patent Office—May 20, 2009.
European Search Report—EP08006402—Search Authority—Munich—May 13, 2009.

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