Int J Performability Eng ›› 2020, Vol. 16 ›› Issue (10): 1566-1578.doi: 10.23940/ijpe.20.10.p8.15661578

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Traffic Sign Detection via Efficient ROI Detector and Deep Convolution Neural Network

Weiguo Pana,b,*, En Fua,b, Bingxin Xua,b, Songyin Daia,b, and Feng Pana,b   

  1. aBeijing Key Laboratory of Information Service Engineering, Beijing Union University, Beijing, 100101, China;
    bCollege of Robotics, Beijing Union University, Beijing, 100020, China
  • Submitted on ; Revised on ; Accepted on
  • Contact: * E-mail address: ldtweiguo@buu.edu.cn
  • About author:Weiguo Pan is currently a lecturer in the Beijing Key Laboratory of Information Service Engineering at Beijing Union University. His research interests include machine learning, object detection, and intelligent driving.
    En Fu is currently pursuing a master's degree in the College of Robotics at Beijing Union University. His research interests include machine learning and object detection.
    Bingxin Xu is currently an associate professor in the Beijing Key Laboratory of Information Service Engineering at Beijing Union University. Her research interests include pattern recognition, computer vision, and digital image processing.
    Songyin Dai is currently a faculty member in the Beijing Key Laboratory of Information Service Engineering at Beijing Union University. Her research interests include pattern recognition, computer vision, and digital image processing.
    Feng Pan is currently an associate professor in the College of Robotics at Beijing Union University. His research interest includes machine learning and intelligent driving.

Abstract: With the rapid development of intelligent driving and self-driving, how to quickly identify traffic signs in traffic scenes image is an urgent problem that needs to be solved. The existing object detection method can be divided into two categories: the one-staged method, which has a fast detection speed, and the two-stage method, which has higher detection accuracy. How to quickly and accurately detect targets in traffic scenes images is a current research focus. In this paper, an effective detection operator for the region of interest of traffic signs that utilizes the color, shape, and layout characteristics of traffic signs was proposed. It can accurately extract the region of interest in the traffic scene image for detection stage. The existing two-stage network was also fine-tuned to improve the accuracy of traffic sign detection. On the basis of the existing public data set, 13,000 images were collected and annotated to expand the training and test data. These data were used to verify the method proposed in this article. Experiments demonstrated that the proposed method has been improved in detection speed and detection accuracy.

Key words: region of interest, traffic sign, object detection, deep learning