Patent attributes
Road sign recognition method and system. The method includes performing HSV space color threshold binarization on a single frame image in a road image, obtaining a sign connected region through localization; calculating a length-to-width ratio of the sign connected region to eliminate a false target, calculating a distance from a contour edge to a target center position in the sign connected region, obtaining a target localization region with a circular contour of the sign connected region; intercepting a corresponding grayscale image and calculating an average grayscale value of the grayscale image, performing binarization on the grayscale image in the target localization region, obtaining a binary image of each target localization region; extracting connected regions in the binary images, sorting the connected regions according to coordinates; calculating and determining number or character inside the target localization region by using a neural-network mode recognition algorithm; and calculating confidence.
