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IMAGE-PROCESSING BASED ALGORITHM FOR RECOGNIZING TRAIN NUMBER OF URBAN RAIL TRAIN
IMAGE-PROCESSING BASED ALGORITHM FOR RECOGNIZING TRAIN NUMBER OF URBAN RAIL TRAIN
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机译：基于图像处理的城市轨道交通列车数量识别算法
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摘要
An image-processing based algorithm for recognizing a train number of an urban rail train. The steps of the algorithm are as follows: obtaining an original image by a camera and performing smoothing processing on the original image; highlighting a train number character area according to a background color of the train number character area, and performing binarization on the image; performing morphological processing on the obtained binarized image; positioning train number character area according to a characteristic of a connected region of the train number character area; performing a negation operation on the positioned image of the train number character area, performing analysis on the connected region of the negated image, and segmenting single characters according to characteristics of connected regions of train number characters; performing normalization processing on the segmented single characters and performing binarization processing; and performing train number recognition using an artificial neural network (ANN). The method improves the accuracy of train number information acquisition, reduces costs of a train number acquisition system, and has the advantages of good timeliness and high train number recognition accuracy.
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