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This paper presents a smart and simple algorithm for vehicle's license plate recognition system. The proposed algorithm consists of three major parts namely detection of license plate from an image, segmentation and recognition of characters. For detection of the license plate, a memory and speed proficient algorithm has been proposed. After detection, statistical based template matching is used for...
Based on the binary image, the thesis proposes a suit of algorithm for the license plate intelligent recognition system serving the expressway toll collection system. Firstly, the algorithm of first difference combined with the method of determining the threshold of binarization via accumulating pixel spots is used in pre-processing. Secondly, taking advantage of the horizontal texture characteristic...
My paper accomplishes the problem of recognizing the license plate number from the license plate image with a simple and fast method in order to resolve the problem that is too complicated and high cost in recognizing license plate number of Intelligent Transportation System. This paper extracts the license plate image from rows and lines with the method of counting color pixels. We use the method...
In this paper, the license plate recognition, in the case of the character's local information missing and the license plate partially obstructed, is taken as the research objective. According to the visual identification features that the overall message can be inferred from local information, the characters whose local information missing in the license plate can be deduced from the local evidence...
Character recognitions are generally very sensitive to skew in the automatic license plate recognition (ALPR) system. The skew correction of license plate thus is an important step in ALPR. In this paper, we propose an orientation-based method for skew detection. The license plate image is firstly divided into a set of 5??5 non-overlapping blocks. The local orientation of each black is estimated by...
In this paper, we have proposed a novel approach of license plate recognition system by adopting comprehensive features of license plate. Firstly, we originally combine the stroke width of license plate character with specified colors of license plate to segment the license plate region. Then, we use linear fitting method and projecting method to rectify the position of slant license plate. Furthermore,...
Propose some algorithms about image smooth magnification and character segmentation, aiming at the difficult factor of little license plate region segmentation, in license plate recognition. In the algorithm, describe the relationship between image and surface, with Cardinal curve construction and sampling methods, magnify image smoothly in transverse and longitudinal direction, take image binarization...
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