本文提出了一种新的车辆许可证盘子识别,并在此基础上提出了一种自适应图像分割方法-In this paper, a new algorithm for vehicle license

plate identification is proposed, on the basis of a novel adaptive

image segmentation technique (Sliding Windows) in

conjunction with a character recognition Neural Network. The

algorithm was tested with 2820 natural scene gray level vehicle

images of different backgrounds and ambient illumination.

The camera focused on the plate, while the angle of view and

the distance from the vehicle varied according to the

experimental setup. The license plates properly segmented

were 2719 over 2820 input images (96.4 ). The Optical

Character Recognition (OCR) system is a two layer

Probabilistic Neural Network with topology 108-180-36, whose

performance reached 97.4 . The PNN was trained to identify

multi-font alphanumeric characters from car license plates

based on data obtained from algorithmic image processing.