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Class Information
Number: 348/365
Name: Television > Camera, system and detail > Optics > Exposure control > Automatic control of iris, stop, or diaphragm > Based on image signal > Contrast
Description: Subject matter including a device for detecting brightness differences of video signal components for determining the exposure condition.


Patents under this class:

Patent Number Title Of Patent Date Issued
7573533 Method of generating transfer curves for adaptive contrast enhancement Aug. 11, 2009
7511853 Adjustment for output image of image data Mar. 31, 2009
7495695 Image processing device and method capable of emphasizing the contrast of an image taken by an image sensor Feb. 24, 2009
7463302 Focus control device and focus control method Dec. 9, 2008
7420612 Digital camera Sep. 2, 2008
7362370 Image capturing apparatus, image capturing method, and computer-readable medium storing program using a distance measure for image correction Apr. 22, 2008
7319478 Solid-state video camera and method for brightness control Jan. 15, 2008
7256833 Method and apparatus for automatically optimizing optical contrast in automated equipment Aug. 14, 2007
6989860 Method and apparatus for auto-exposure control in the presence of artificial illumination Jan. 24, 2006
6937774 Apparatus and method for efficiently increasing the spatial resolution of images Aug. 30, 2005
6816191 Image processing method for the adjustment of photographic contrast and the relevant apparatus Nov. 9, 2004
6570620 Exposure control device May. 27, 2003
6307597 Apparatus for sampling and displaying an auxiliary image with a main image Oct. 23, 2001
5963254 Technique for backlight compensation by selecting most appropriate compensation area and controlling iris in accordance with luminance level thereof Oct. 5, 1999
5959670 Image pickup apparatus with exposure control correction Sep. 28, 1999
5798793 Automatic focusing device capable of detecting panning Aug. 25, 1998
5751354 Image sensing apparatus and method with exposure performed based on focus evaluation values May. 12, 1998
5694168 Auto focus control device and method including selecting a zone for detecting an evaluative value for focusing in accordance with photographing direction Dec. 2, 1997
5677733 Exposure control device having a plurality of light detecting areas Oct. 14, 1997
5406349 Interchangeable lens and interchangeable lens system Apr. 11, 1995
5293241 Method and circuit for controlling opening/closing of a camcorder iris diaphragm Mar. 8, 1994
5264940 Image sensing apparatus having exposure level and dynamic range control circuit Nov. 23, 1993
5189519 Electronic camera with exposure control Feb. 23, 1993
5185671 Adaptive control of an electronic imaging camera Feb. 9, 1993
5184172 Method of and apparatus for automatically controlling exposure Feb. 2, 1993
5065247 Automatic iris correction apparatus for use in automatically adjusting exposure in response to a video signal Nov. 12, 1991
5036400 Automatic iris correction apparatus for use in automatically adjusting exposure in response to a video signal Jul. 30, 1991
5016110 Automatic focusing control of a video camera for industrial and military purposes May. 14, 1991
4978990 Exposure control apparatus for camera Dec. 18, 1990
4969045 Image sensing apparatus having automatic iris function of automatically adjusting exposure in response to video signal Nov. 6, 1990
4843476 System for controlling the amount of light reaching an image pick-up apparatus based on a brightness/darkness ratio weighing Jun. 27, 1989
4752567 Method of visualizing individual submicroscopic metal particles Jun. 21, 1988
4737855 Automatic diaphragm control device for TV camera objective Apr. 12, 1988
4717960 Automatic diaphragm control device of variable photometry type used in objective for television camera Jan. 5, 1988
4562476 Automatic diaphragm control device for use IWT CCTV camera Dec. 31, 1985
4547808 Photometric circuit incorporated in objective provided with automatic diaphragm for closed circuit television (CCTV) camera Oct. 15, 1985
4472743 Automatic diaphragm control device for a closed circuit television camera Sep. 18, 1984
4453185 Automatic diaphragm control device for a closed circuit television camera Jun. 5, 1984
4327378 Automatic iris control for solid-stage imaging apparatus Apr. 27, 1982
4302780 Photometric system Nov. 24, 1981



 
 
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