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Learning from synthetic data for automatic license plate detection and recognition

  • Zhicheng Yang
  • , Xiaojun Wu*
  • , Jinghui Zhou
  • *Corresponding author for this work
  • Harbin Institute of Technology Shenzhen
  • Shenzhen Key Laboratory for Advanced Motion Control and Modern Automation Equipment

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Automatic license plate detection and recognition (ALPDR) in natural scene is a useful but difficult task as the all-weather and variety of lighting conditions. Though deep learning based ALPDR methods can achieve much higher recognition rate, it needs a large number of human-labelled samples to train the deep neuron network. In this paper, we propose a method to generate synthetic data based CNN ALPDR to avoid manually labelling lots of data and stabilize training. First, our data engine generates 100K synthetic car license plates to simulate real scene and train networks. Then, we design a recognition network to predict all characters holistically, avoiding the character segmentation. Some real scene data sets are employed to validate the effectiveness of our presented method. The accuracy of our ALPDR system is 91.18% and 95% in toll station dataset and 94.2% in traffic surveillance dataset.

Original languageEnglish
Title of host publicationTenth International Conference on Digital Image Processing, ICDIP 2018
EditorsJenq-Neng Hwang, Xudong Jiang
PublisherSPIE
ISBN (Print)9781510621992
DOIs
StatePublished - 2018
Externally publishedYes
Event10th International Conference on Digital Image Processing, ICDIP 2018 - Shanghai, China
Duration: 11 May 201814 May 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10806
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference10th International Conference on Digital Image Processing, ICDIP 2018
Country/TerritoryChina
CityShanghai
Period11/05/1814/05/18

Keywords

  • Plate detection
  • Recognition
  • Recognition without segmentation
  • Synthetic data

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