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Railway vehicle number identification method and system

An identification method and rail vehicle technology, applied in the field of rail vehicle number identification method and system, can solve the problems of low image imaging quality, low work efficiency, inconvenient installation, etc., and achieve image quality improvement, cost saving, and convenient installation Effect

Pending Publication Date: 2022-07-22
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a rail vehicle number recognition method and system, at least through the present invention to solve the interference of light on image acquisition, low imaging quality of the collected images, high cost, and the need to install an industrial computer for deep learning calculations. Inconvenient installation, low work efficiency and other problems

Method used

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  • Railway vehicle number identification method and system
  • Railway vehicle number identification method and system
  • Railway vehicle number identification method and system

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Embodiment 1

[0049] This embodiment also provides a method for identifying the vehicle number of a rail vehicle. Please refer to Figure 1 to Figure 4 , figure 1 is a flow chart of the method for identifying the vehicle number of a rail vehicle according to an embodiment of the present application; figure 2 It is a framework diagram of the implementation steps of the method for identifying the vehicle number of a rail vehicle according to an embodiment of the present application; image 3 is a schematic diagram of an image acquisition cycle according to an embodiment of the present application; Figure 4 This is a flowchart of the image fusion method according to the embodiment of the present application. like Figure 1 to Figure 4 As shown, the vehicle number recognition method includes:

[0050] Train image acquisition step S2: acquiring train images by using multiple exposure cycles;

[0051] Step S3 of processing the image of the vehicle number area: performing image cropping on...

Embodiment 2

[0095] This embodiment also provides a vehicle number identification system for a rail vehicle. Figure 5 It is a schematic diagram of the structure of the rail vehicle square hole lock abnormality identification system of the present invention; Image 6 It is a schematic diagram of a hardware arrangement according to an embodiment of the present application. like Figure 5 to Figure 6 As shown, the invented vehicle number recognition system is suitable for the following vehicle number recognition method, and the vehicle number recognition system includes:

[0096] Train image acquisition unit 51 : the train number camera uses multiple exposure cycles to acquire train images;

[0097] The vehicle number area image processing unit 52: performs image cropping on the train image according to the vehicle speed to obtain a first vehicle number area image, performs histogram equalization on the first vehicle number area image to obtain a second vehicle number area image, and obtai...

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Abstract

The invention discloses a railway vehicle number identification method and system. The railway vehicle number identification method comprises the following steps: acquiring a train image by adopting multiple exposure cycles; performing image cutting on the train image according to the train speed to obtain a first train number area image, performing histogram equalization on the first train number area image to obtain a second train number area image, and performing image alignment on the second train number area image through an ORB feature registration method to obtain a third train number area image, performing image fusion on the third vehicle number area image through a weighted fusion method to obtain a fourth vehicle number area image; and inputting the fourth vehicle number area image into a text detection network to obtain vehicle number area data, and inputting the vehicle number area data into a text recognition network to obtain a vehicle number recognition result. According to the method, the vehicle number image is cut, the vehicle number area is reserved, the imaging quality is improved through image alignment and fusion, and interference of illumination on the image is avoided.

Description

technical field [0001] The present application relates to the technical field of rail vehicle number identification, and in particular, to a method and system for rail vehicle number identification. Background technique [0002] The train number is important information for the train. In the new daily inspection platform, the trackside detection system, the robot system, and the brake pad detection system and other subsystems need to be further identified based on the car number information, and linked to the same passing record. Down. Therefore, it is necessary to quickly and accurately identify the number information of the train. [0003] The current vehicle number recognition has the following shortcomings: it is easily affected by external lighting conditions, and the image captured by the camera will be too dark or overexposed to be recognized directly; if multiple cameras without exposure are used to shoot at the same time, it will increase the cost and installation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V30/148G06V10/80G06K9/62
CPCG06F18/25
Inventor 武伟王言鹏李世双袁啸阳董凯炎韩可均刘波李先伟庄国军
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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