Method for firing flash of image-capturing device
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United States of America Patent
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Issued Date -
Dec 6, 2007
app pub date -
Oct 20, 2006
filing date -
May 30, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for firing a flash of an image-capturing device is disclosed. The method uses a focus parameter, which is generated during the focusing procedure of the image-capturing device, to estimate a shooting distance. Then, the method dynamically determines a flash intensity of the flash according to the shooting distance, thereby obtaining improved exposure effect. In addition, since the preflash of the flash is skipped, the method can reduce the power consumption and shorten the shooting time, thereby enhancing the performance of the image-capturing device and the flash.
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