License plate image-pickup device and image exposure adjustment method thereof
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United States of America Patent
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Apr 28, 2015
Grant Date -
Sep 26, 2013
app pub date -
May 17, 2012
filing date -
Mar 21, 2012
priority date (Note) -
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Abstract
The present invention discloses a license plate image-pickup device and an image exposure adjustment method thereof. The license plate image-pickup device comprises an image-sensing module, a recognition module and a processing module. The license plate image-pickup device takes a scene. The image-sensing module senses the scene to produce an image. The recognition module detects a vehicle object. The processing module adjusts the exposure of the vehicle object to produce an exposure adjusted vehicle object, and then the recognition module detects a license plate object from the exposure adjusted vehicle object, and the processing module adjusts the exposure of the license plate object.
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