Traffic sign detection using a cascade method with fast feature extraction and saliency test

Wang, Dongdong and Hou, Xinwen and Xu, Jiawei and Yue, Shigang and Liu, Cheng-Lin (2017) Traffic sign detection using a cascade method with fast feature extraction and saliency test. IEEE Transactions on Intelligent Transportation Systems, 18 (12). pp. 3290-3302. ISSN 1524-9050

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Abstract

Automatic traffic sign detection is challenging due to the complexity of scene images, and fast detection is required in real applications such as driver assistance systems. In this paper, we propose a fast traffic sign detection method based on a cascade method with saliency test and neighboring scale awareness. In the cascade method, feature maps of several channels are extracted efficiently using approximation techniques. Sliding windows are pruned hierarchically using coarse-to-fine classifiers and the correlation between neighboring scales. The cascade system has only one free parameter, while the multiple thresholds are selected by a data-driven approach. To further increase speed, we also use a novel saliency test based on mid-level features to pre-prune background windows. Experiments on two public traffic sign data sets show that the proposed method achieves competing performance and runs 27 times as fast as most of the state-of-the-art methods.

Keywords:Traffic sign detection, cascade system, fast feature extraction, saliency test., Feature extraction, Support vector machines, Image color analysis, Color, Shape, Detectors
Subjects:G Mathematical and Computer Sciences > G740 Computer Vision
Divisions:College of Science > School of Computer Science
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ID Code:27022
Deposited On:15 May 2017 15:30

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