Image pickup apparatus having sharpness control

Details Image pickup apparatus having sharpness control Image pickup apparatus having sharpness control

1997-07-29

1999-11-02

Garber, Wendy

Television

Camera, system and detail

Optics

348296, 348351, 348364, 396123, H04N 5335, H04N 5232, H04N 5238

Patent

active

059780274

ABSTRACT:
An image pickup apparatus has an AF function which determines a focus state of an object using an image signal obtained from a signal output of an image pickup device and detects the lens position in an in-focus state. The apparatus includes an image-region setting circuit for selectively extracting an image region for detecting the lens position in an in-focus state, an optimum-exposure-amount calculation circuit for calculating an optimum amount of exposure for the image region using an image signal within the image region set by the image-region setting circuit, and a focus detection circuit for calculating the lens position in an in-focus state using an image signal within the image region exposed with the optimum amount of exposure calculated by the optimum-exposure-amount calculation circuit.

REFERENCES:
patent: 4804831 (1989-02-01), Baba et al.
patent: 4969045 (1990-11-01), Haruki et al.
patent: 5036400 (1991-07-01), Haruki
patent: 5049997 (1991-09-01), Arai
patent: 5051833 (1991-09-01), Tsuji
patent: 5093716 (1992-03-01), Kondo et al.
patent: 5128768 (1992-07-01), Suda et al.
patent: 5272538 (1993-12-01), Homma et al.
patent: 5280359 (1994-01-01), Mimura et al.
patent: 5339163 (1994-08-01), Homma et al.
patent: 5343246 (1994-08-01), Arai et al.
patent: 5349382 (1994-09-01), Tamura
patent: 5353058 (1994-10-01), Takei
patent: 5363137 (1994-11-01), Suga
patent: 5416518 (1995-05-01), Lee et al.
patent: 5473374 (1995-12-01), Shimizu
patent: 5512951 (1996-04-01), Torii
patent: 5565917 (1996-10-01), Takeda
patent: 5589880 (1996-12-01), TsuKui

Affiliated with

Also associated with

Rating

Image pickup apparatus having sharpness control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image pickup apparatus having sharpness control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image pickup apparatus having sharpness control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2142596