DIGITAL CAMERAS HAVING REDUCED STARTUP TIME, AND RELATED DEVICES, METHODS, AND COMPUTER PROGRAM PRODUCTS
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United States of America Patent
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Issued Date -
Aug 25, 2016
app pub date -
Feb 27, 2014
filing date -
Feb 27, 2014
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Abandoned
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Abstract
A method of setting an auto exposure level at startup for a digital array camera having a plurality of image sensors includes acquiring a first frame of image data from the plurality of image sensors via an image signal processor. The image signal processor generates a respective histogram for the image data from each respective image sensor. The histogram having the best exposure level is selected and the exposure level for each image sensor is then set to the exposure level for the selected histogram prior to acquiring a next frame of image data from the image sensors. A control algorithm, such as a 3A algorithm, may be used to select a histogram having the best exposure level and to set an exposure level for each image sensor to the exposure level for the selected histogram.
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