Sampled data video signal chrominance/luminance separation syste

Details Sampled data video signal chrominance/luminance separation syste Sampled data video signal chrominance/luminance separation syste

1985-05-22

1986-12-02

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

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H04N 964

Patent

active

046268952

ABSTRACT:
An adaptive system for separating chrominance and luminance components from composite video includes a delay element having a central output tap and pairs of further output taps symmetrically disposed about said further tap. Samples from each pair of taps are subtractively combined, filtered and scaled. These samples are then applied to a decoder which determines the pair of taps providing the smallest filtered and scaled difference. Samples from the pair of taps generating the smallest difference and samples from the central output tap are then combined to produce either comb filtered chrominance/luminance or bandpass/lowpass filtered chrominance/liminance.

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Schonfelder, "Verbesserung der PAL-Bildqualitat Durch Digitale Interframetechnik", Fernsch-und Kino Technik, vol. 38, Jan. 1984, pp. 231-238.

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