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Sensors 2017, 17(4), 853; doi:10.3390/s17040853

Real-Time (Vision-Based) Road Sign Recognition Using an Artificial Neural Network

Department of Artificial Intelligence, Faculty of Computer Science & Information Technology, University of Malaya, Kuala Lumpur 50603, Malaysia
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Received: 19 December 2016 / Revised: 15 March 2017 / Accepted: 16 March 2017 / Published: 13 April 2017
(This article belongs to the Special Issue Sensors for Transportation)

Abstract

Road sign recognition is a driver support function that can be used to notify and warn the driver by showing the restrictions that may be effective on the current stretch of road. Examples for such regulations are ‘traffic light ahead’ or ‘pedestrian crossing’ indications. The present investigation targets the recognition of Malaysian road and traffic signs in real-time. Real-time video is taken by a digital camera from a moving vehicle and real world road signs are then extracted using vision-only information. The system is based on two stages, one performs the detection and another one is for recognition. In the first stage, a hybrid color segmentation algorithm has been developed and tested. In the second stage, an introduced robust custom feature extraction method is used for the first time in a road sign recognition approach. Finally, a multilayer artificial neural network (ANN) has been created to recognize and interpret various road signs. It is robust because it has been tested on both standard and non-standard road signs with significant recognition accuracy. This proposed system achieved an average of 99.90% accuracy with 99.90% of sensitivity, 99.90% of specificity, 99.90% of f-measure, and 0.001 of false positive rate (FPR) with 0.3 s computational time. This low FPR can increase the system stability and dependability in real-time applications. View Full-Text
Keywords: intelligent transportation system; artificial intelligence; computer vision; road and traffic sign recognition intelligent transportation system; artificial intelligence; computer vision; road and traffic sign recognition
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Islam, K.T.; Raj, R.G. Real-Time (Vision-Based) Road Sign Recognition Using an Artificial Neural Network. Sensors 2017, 17, 853.

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