Multi-national and Multi-language License Plate Detection using Convolutional Neural Networks

  • M. Salemdeeb Electronics & Telecommunications Engineering Department, Kocaeli University, Turkey http://orcid.org/0000-0002-2913-7671
  • S. Erturk Electronics & Telecommunications Engineering Department, Kocaeli University, Turkey
Keywords: license plate detection, license plate classification, LPD, Yolo detector, convolutional neural network, deep learning

Abstract

Many real-life machine and computer vision applications are focusing on object detection and recognition. In recent years, deep learning-based approaches gained increasing interest due to their high accuracy levels. License Plate (LP) detection and classification have been studied extensively over the last decades. However, more accurate and language-independent approaches are still required. This paper presents a new approach to detect LPs and recognize their country, language, and layout. Furthermore, a new LP dataset for both multi-national and multi-language detection, with either one-line or two-line layouts is presented. The YOLOv2 detector with ResNet feature extraction core was utilized for LP detection, and a new low complexity convolutional neural network architecture was proposed to classify LPs. Results show that the proposed approach achieves an average detection precision of 99.57%, whereas the country, language, and layout classification accuracy is 99.33%.

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