Image pickup apparatus and method for reducing smear

Details Image pickup apparatus and method for reducing smear Image pickup apparatus and method for reducing smear

1990-10-04

1992-05-12

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 43, 358184, 35821324, H04N 904

Patent

active

051132451

ABSTRACT:
An image pickup unit including a charge coupled solid-state image pickup device which performs interlaced scanning read-out which reduces the occurrence of field flicker and color flicker caused by smear. Picture signals of respective colors corresponding to a second field are amplified with amplification factors corresponding to inverse relationships of respective smear components characteristics, which are increased as shutter speed increased. In a second embodiment, the exposure period for picture signals corresponding to the second field of a certain color is controlled to have an inverse relationship to a smear component characteristic, which increases as the shutter speed increases. The picture signals of the remaining colors are amplified accordingly with amplification colors and which are set to inverse relationships to the respective smear components.

REFERENCES:
patent: 4638352 (1987-01-01), Noda et al.
patent: 4768094 (1988-08-01), Ichinoi
patent: 4783702 (1988-11-01), Sone et al.
patent: 4884129 (1989-11-01), Ozawa et al.

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