LICENSE PLATE IMAGE-PICKUP DEVICE AND IMAGE EXPOSURE ADJUSTMENT METHOD THEREOF
First Claim
1. A license plate image-pickup device, taking a scene, and comprising:
- an image sensing module, arranged for sensing the scene to produce an image;
a recognition module, arranged for recognizing a vehicle object contained in the image; and
a processing module, arranged for adjusting an exposure of the vehicle object to produce an exposure adjusted vehicle object, and the recognition module further recognizing a license plate object contained in the exposure adjusted vehicle object, and the processing module further adjusting the exposure of the license plate object.
1 Assignment
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Accused Products
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.
18 Citations
14 Claims
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1. A license plate image-pickup device, taking a scene, and comprising:
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an image sensing module, arranged for sensing the scene to produce an image; a recognition module, arranged for recognizing a vehicle object contained in the image; and a processing module, arranged for adjusting an exposure of the vehicle object to produce an exposure adjusted vehicle object, and the recognition module further recognizing a license plate object contained in the exposure adjusted vehicle object, and the processing module further adjusting the exposure of the license plate object. - View Dependent Claims (2, 3, 4, 5)
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6. An image exposure adjustment method, comprising the steps of:
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using an image sensing module to sense a scene to produce an image; using a recognition module to recognizing a vehicle object contained in the image; using a processing module to adjust an exposure of the vehicle object to produce an exposure adjusted vehicle object; using the recognition module to recognizing a license plate object contained in the exposure adjusted vehicle object; and using the processing module to adjust the exposure of the license plate object. - View Dependent Claims (7, 8, 9)
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10. A license plate image-pickup device, taking a scene, and comprising:
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a photo sensor, arranged for sensing the scene to produce a sensing signal; an image processing module, arranged for producing an image according to the sensing signal; a recognition module, arranged for recognizing a vehicle object contained in the image; and a processing module, arranged for adjusting an exposure of the vehicle object to produce an exposure adjusted vehicle object, and the recognition module further recognizing a license plate object contained in the exposure adjusted vehicle object, and the processing module further adjusting the exposure of the license plate object. - View Dependent Claims (11, 12, 13, 14)
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Specification