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High Occupancy Vehicle (HOV) lanes encourage carpooling and have been a common method used by transportation agencies to reduce congestion on highways. Image-based enforcement for HOV lanes is an emerging technology that uses one or more cameras mounted on overhead gantries and/or roadside poles to capture imagery inside vehicles and make computer vision based assessments of the occupancy state of...
We propose a novel algorithm for improving the quality of binarized document images captured with a mobile device under low light conditions. In such scenarios, images captured without a flash often result in blur artifacts and poor signal-to-noise ratio, while images taken with the flash may produce information loss due to specular reflection in a localized region termed a “flash spot”. Our algorithm...
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