Methods for improved autofocus in digital imaging systems

Details Methods for improved autofocus in digital imaging systems Methods for improved autofocus in digital imaging systems

2005-11-03

2008-08-05

Lateef, Marvin M. (Department: 4146)

Photography

Attitude sensing

C396S089000

Reexamination Certificate

active

07409149

ABSTRACT:
Methods to improve autofocus in digital imaging systems, such as digital cameras, are disclosed. Embodiments may include, in response to locking of lens focus on a subject image, determining an initial subject focus distance and an initial attitude, and in response to a request for an exposure, determining a final attitude. Embodiments may also include determining a final target subject distance based on the initial subject focus distance and a focus correction distance, where the focus correction distance is based on the difference between the initial attitude and the final attitude. Embodiments may also include focusing the lens at the final target subject distance. Further embodiments may include after focusing the lens at the final target subject distance, exposing an image. Other embodiments may include determining the initial and final attitude with a micro-electro-mechanical (MEMS)-based sensor or other sensor.

REFERENCES:
patent: 5677760 (1997-10-01), Mikami et al.
patent: 5764291 (1998-06-01), Fullam
patent: 5900909 (1999-05-01), Parulski et al.
patent: 6148149 (2000-11-01), Kagle
patent: 6222584 (2001-04-01), Pan
patent: 6262769 (2001-07-01), Anderson et al.
patent: 6738095 (2004-05-01), Dibella et al.
patent: 6747690 (2004-06-01), Mølgaard
patent: 6965397 (2005-11-01), Honey et al.
patent: 2004/0017506 (2004-01-01), Livingston

Affiliated with

Also associated with

Rating

Methods for improved autofocus in digital imaging systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods for improved autofocus in digital imaging systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for improved autofocus in digital imaging systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4001288