Video signal recursive filter with luma/chroma separation

Details Video signal recursive filter with luma/chroma separation Video signal recursive filter with luma/chroma separation

H - Electricity

04

N

350/62

H04N 9/12 (2006.01) H04N 5/14 (2006.01) H04N 9/64 (2006.01) H04N 9/77 (2006.01)

Patent

CA 1233240

Abstract A motion adaptive recursive-filter is modified to separate luminance or chrominance signal from composite video. The filter proportions and sums current and frame delayed signal recursively to provide signal-to-noise enhanced luminance signal with the chrominance component reduced to a steady state residual value the first frame after motion ceases. Current composite video signal is appropriately scaled and combined with the signal-to-noise enhanced signal to cancel the residual chrominance component therein.

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