Exposure compensation method and system employing meter...

Details Exposure compensation method and system employing meter... Exposure compensation method and system employing meter...

2005-02-22

2005-02-22

Perkey, W. B. (Department: 2851)

Photography

Flash system responsive to focal length or distance

C396S121000, C396S165000, C396S234000

Reexamination Certificate

active

06859618

ABSTRACT:
Mechanisms for compensating for backlight conditions in a scene for use in an image capture device that includes a flash and a flash control signal for activating the flash when the flash control signal is asserted are described. First, a meter matrix for a scene that includes a plurality of points, where each point can include brightness information and distance information, is generated. Second, a flash control signal is selectively asserted based on the meter matrix.

REFERENCES:
patent: 4664495 (1987-05-01), Alyfuku et al.
patent: 4941009 (1990-07-01), Yoshida
patent: 5963254 (1999-10-01), Kim et al.
patent: 6240253 (2001-05-01), Yamaguchi et al.
patent: 6389232 (2002-05-01), Ishihara et al.
patent: 6516147 (2003-02-01), Whiteside

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