Image pickup apparatus used in a flickering light

Details Image pickup apparatus used in a flickering light Image pickup apparatus used in a flickering light

1991-04-16

1993-08-24

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 43, 358 44, 358 29, H04N 973

Patent

active

052393690

ABSTRACT:
An image pickup apparatus comprises, an image pickup device for inputting a subject light and converting the subject light into an electrical signal; and information input device for inputting information necessary for correcting the luminance level, color level, white balance, or the like of an output of the image pickup device, wherein an output of the information input device, which is obtained at a time earlier than the time the image pickup device inputs the subject light by a predetermined time obtained by multiplying the flicker frequency of an external light by a natural number, is averaged for the same period as the period the image pickup device inputs the subject light, and the averaged signal is used to correct a white balance.

REFERENCES:
patent: 4739393 (1988-04-01), Seki
patent: 4739394 (1988-04-01), Oda
patent: 4774564 (1988-09-01), Konishi
patent: 4833525 (1989-05-01), Suzuki
patent: 4847680 (1989-07-01), Okino
patent: 4851897 (1989-07-01), Inuma

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