Container number automatic acquisition and identification method in railway container loading and unloading process
A recognition method and automatic collection technology, applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of single case number collection data, no distinction between uppercase letters and numbers, and difficulty in distinguishing case numbers with different font colors , to improve the recognition accuracy
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[0060] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The container image acquisition device of the present invention is respectively installed on the lock seat and the outrigger side of the crane, and adopts PLC control to trigger the photographing device for image acquisition. For the identification of container numbers, a preprocessing method with strong versatility is proposed, a method for judging container numbers of different colors, and a method for judging different arrangements of container numbers are proposed. Use 3 neural network classifiers to recognize 4 capital letters, 6 Arabic numerals and 1 check code in the container number respectively, so as to avoid the problem of high recognition error rate due to the similarity of characters. The final box number identification is the result of combining the two sides of the box number mutual inspection and the box number check cod...
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