Exposure control method and imaging apparatus

Details Exposure control method and imaging apparatus Exposure control method and imaging apparatus

2007-03-08

2010-12-07

Ye, Lin (Department: 2622)

Television

Camera, system and detail

With object or scene illumination

Reexamination Certificate

active

07847859

ABSTRACT:
A digital camera automatically changes its imaging sensitivity based on a proper exposure value that is calculated at a predetermined standard imaging sensitivity based on subject brightness measured from a photometry area of a scene to shoot. When the decided imaging sensitivity is higher than a predetermined sensitivity threshold value, the scene is judged to be a low brightness backlit scene that contains a higher brightness portion around a dark main subject, and a lower brightness portion around the higher brightness portion. A rear light judgment value is calculated as a difference between a central photometric value and a peripheral photometric value of a photometry area, and is compared with a predetermined rear light threshold value, to judge whether the scene is backlit or not. When the scene is judged to be a backlit scene or a low brightness backlit scene, the digital camera emits a flash light synchronously with an exposure.

REFERENCES:
patent: 7167203 (2007-01-01), Yukawa et al.
patent: 7509042 (2009-03-01), Mori et al.
patent: 2005/0024508 (2005-02-01), Okisu et al.
patent: 2005/0122420 (2005-06-01), Matsui
patent: 2005/0219381 (2005-10-01), Takeuchi et al.
patent: 6-148725 (1994-05-01), None
patent: 07-128703 (1995-05-01), None
patent: 08-022044 (1996-01-01), None
patent: 2001-339636 (2001-12-01), None
patent: 2002-333649 (2002-11-01), None
patent: 2005-204120 (2005-07-01), None
JP Notification of Reasons for Refusal, mailed Jul. 28, 2010, issued in corresponding JP Application No. 2006-063218, 4 pages in English and Japanese.

Affiliated with

Also associated with

Rating

Exposure control method and imaging apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4189066