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Train number and type recognition method and system, and safety check method and system

A technology of vehicle identification and identification method, applied in the field of train safety inspection method and system, train number and vehicle type identification, can solve problems such as the influence of vehicle number identification accuracy, and achieve automatic identification, good ease of use, and high efficiency Effect

Active Publication Date: 2016-03-30
NUCTECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

If the image is distorted, it will affect the accuracy of vehicle number recognition

Method used

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  • Train number and type recognition method and system, and safety check method and system
  • Train number and type recognition method and system, and safety check method and system
  • Train number and type recognition method and system, and safety check method and system

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Embodiment Construction

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0036] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or mo...

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Abstract

The invention relates to a train number and type recognition method, a train number and type recognition system, a safety check method and a safety check system. The train number recognition method comprises the steps of continuously shooting a train to be checked by using a linear array camera which moves relative to the train to be checked, and thereby generating a plurality of train sub-images; splicing the plurality of train sub-images to obtain a spliced image; correcting the distortion of the spliced image to obtain a corrected image; and recognizing the train number from the corrected image. The step of correcting the distortion of the spliced image comprises the sub-steps of extracting the profile of each wheel from the spliced image, and obtaining a ratio of the horizontal diameter to the vertical diameter of each wheel from the corresponding wheel profile; if the ratio is more than a first predefined threshold, horizontally compressing the spliced image according to the ratio; and if the ratio is less than a second predefined threshold, horizontally stretching the spliced image. According to the methods and systems provided by the invention, automatic recognition of the train type and safety check of the train can be achieved with high efficiency and good usability.

Description

technical field [0001] The invention relates to the field of train inspection, in particular to a method and system for identifying train number and vehicle type, and a method and system for train safety inspection. Background technique [0002] In the management of train transportation, it is often necessary to record, check and check the train number. Carrying out vehicle number processing manually is a time-consuming, laborious and error-prone work. One way of automatic processing is to use RFID (Radio Frequency Identification) tags, but this method is expensive and in some cases cannot be used. Another processing method is to use digital image processing to automatically recognize the vehicle number. Digital image processing has become a conventional recognition method because it can perform recognition operations through complex algorithms and has high processing precision. Recognizing the vehicle number through digital image processing needs to obtain the vehicle bo...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06K9/46G06T3/40G06V30/168G06V30/10
CPCG06T3/4038G06V10/40G06V10/751G06T7/0004G06T2200/32H04N1/00442H04N19/23H04N2209/045G06V20/00G06V10/34G06V2201/06G06V30/10G06F18/00G06T5/80G06V30/168
Inventor 许艳伟喻卫丰
Owner NUCTECH CO LTD
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