Title:
IMAGE-PROCESSING BASED ALGORITHM FOR RECOGNIZING TRAIN NUMBER OF URBAN RAIL TRAIN
Document Type and Number:
WIPO Patent Application WO/2020/134324
Kind Code:
A1
Abstract:
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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Inventors:
XING ZONGYI (CN)
Application Number:
PCT/CN2019/110230
Publication Date:
July 02, 2020
Filing Date:
October 10, 2019
Export Citation:
Assignee:
NANJING RUISU RAIL TRANSIT TECH CO LTD (CN)
International Classes:
G06K9/20
Foreign References:
| CN109840523A | 2019-06-04 | |||
| CN101398894A | 2009-04-01 | |||
| CN108734158A | 2018-11-02 | |||
| CN105354574A | 2016-02-24 | |||
| US20070058856A1 | 2007-03-15 |
Attorney, Agent or Firm:
JIANGSU SHENGDIAN LAW FIRM (CN)
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