License plate detection based on genetic neural networks, morphology, and active contours

Authors:
Joaquín Olivares;José M. Palomares;José M. Soto;Juan Carlos Gámez
Affiliations:
Department of Computer Architecture, Electronics, and Electronic Technology, University of Córdoba, Córdoba, Spain;Department of Computer Architecture, Electronics, and Electronic Technology, University of Córdoba, Córdoba, Spain;Department of Computer Architecture, Electronics, and Electronic Technology, University of Córdoba, Córdoba, Spain;Department of Computer Architecture, Electronics, and Electronic Technology, University of Córdoba, Córdoba, Spain
Venue:
IEA/AIE'10 Proceedings of the 23rd international conference on Industrial engineering and other applications of applied intelligent systems - Volume Part III
Year:
2010

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Abstract

This paper describes a new method for License Plate Detection based on Genetic Neural Networks, Morphology, and Active Contours. Given an image is divided into several virtual regions sized 10 × 10 pixels, applying several performance algorithms within each virtual region, algorithms such as edge detection, histograms, and binary thresholding, etc. These results are used as inputs for a Genetic Neural Network, which provides the initial selection for the probable situation of the license plate. Further refinement is applied using active contours to fit the output tightly to the license plate. With a small and well-chosen subset of images, the system is able to deal with a large variety of images with real-world characteristics obtaining great precision in the detection.The effectiveness for the proposed method is very high (97%). This method will be the first stage of a surveillance system which takes into account not only the actual license plate but also the model of the car to determine if a car should be taken as a threat.