Television – Camera – system and detail – Optics
Patent
1995-06-07
1996-12-03
Garber, Wendy
Television
Camera, system and detail
Optics
348231, H04N 5225
Patent
active
055813011
ABSTRACT:
An image processing apparatus capable of thinning data obtained by a solid-state image pickup device having a certain resolution. The apparatus includes an optical low-pass filter mounted in front of the solid-state image pickup device in an optical focusing system, the low-pass filter having an alterable optical transmittance characteristic relative to a spatial frequency, wherein the optical transmittance characteristic of the optical low-pass filter is changed between cases where all pixels of the solid-state image pickup device are output and cases where pixel data is thinned.
REFERENCES:
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patent: 4605956 (1986-08-01), Lok
patent: 4743100 (1988-05-01), Nakada et al.
patent: 4795236 (1989-01-01), Ise
patent: 4805028 (1989-02-01), Nishioka et al.
patent: 5029010 (1991-07-01), Shiraishi
Canon Kabushiki Kaisha
Garber Wendy
Ho Tuan V.
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