Color television camera with luminance non-uniformity compensati

Details Color television camera with luminance non-uniformity compensati Color television camera with luminance non-uniformity compensati

1973-11-02

1976-03-23

Libman, George H.

Facsimile and static presentation processing

Static presentation processing

Attribute control

178DIG25, H04N 907

Patent

active

039464342

ABSTRACT:
A color television camera is provided with a single image pickup tube for producing a luminance signal and a chrominance signal, a demodulator for producing three primary color signals from the chrominance signal, an adder for adding the primary color signals to produce a relatively narrower band luminance signal and a subtraction circuit for subtracting the narrower band luminance signal from the luminance signal to produce a luminance signal compensated for non-uniformity, which is used for an aperture correction.

REFERENCES:
patent: 3002050 (1961-09-01), Richman
patent: 3340356 (1967-09-01), James
patent: 3549901 (1970-12-01), Ross et al.
patent: 3585286 (1971-06-01), Macovski
patent: 3699241 (1972-10-01), Larsen
patent: 3715473 (1973-02-01), Tan
patent: 3719771 (1973-03-01), Eto et al.
patent: 3780215 (1973-12-01), Shibata et al.
patent: 3798353 (1974-03-01), Illetschko

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