Apparatus for capturing images, method of controlling exposure in the apparatus, and computer readable recording medium storing program

A method of controlling exposure under low brightness conditions, comprising calculating an automatic exposure time such that an exposure time is substantially in inverse proportion to the brightness of a subject; when the automatic exposure time is smaller than a first exposure time value, setting...

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Bibliographic Details
Main Authors GWAK JIN-PYO, JANG SOON-GEUN, AHN EUN-SUN
Format Patent
LanguageEnglish
Published 10.09.2009
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A method of controlling exposure under low brightness conditions, comprising calculating an automatic exposure time such that an exposure time is substantially in inverse proportion to the brightness of a subject; when the automatic exposure time is smaller than a first exposure time value, setting a control exposure time as the automatic exposure time; when the automatic exposure time is greater than or equal to the first exposure time and smaller than or equal to a second exposure time, setting the control exposure time as the first exposure time; when the automatic exposure time is greater than the second exposure time, setting the control exposure time to be substantially in proportion to the automatic exposure time such that the control exposure time is smaller than the automatic exposure time by predetermined steps; and increasing sensitivity according to a difference between the automatic exposure time and the control exposure time.
Bibliography:Application Number: US20090380433