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http://dx.doi.org/10.7746/jkros.2017.12.2.217

Crosswalk Detection using Feature Vectors in Road Images  

Lee, Geun-mo (School of Computer Science and Engineering, Kyungpook National University)
Park, Soon-Yong (School of Computer Science and Engineering, Kyungpook National University)
Publication Information
The Journal of Korea Robotics Society / v.12, no.2, 2017 , pp. 217-227 More about this Journal
Abstract
Crosswalk detection is an important part of the Pedestrian Protection System in autonomous vehicles. Different methods of crosswalk detection have been introduced so far using crosswalk edge features, the distance between crosswalk blocks, laser scanning, Hough Transformation, and Fourier Transformation. However, most of these methods failed to detect crosswalks accurately, when they are damaged, faded away or partly occluded. Furthermore, these methods face difficulties when applying on real road environment where there are lot of vehicles. In this paper, we solve this problem by first using a region based binarization technique and x-axis histogram to detect the candidate crosswalk areas. Then, we apply Support Vector Machine (SVM) based classification method to decide whether the candidate areas contain a crosswalk or not. Experiment results prove that our method can detect crosswalks in different environment conditions with higher recognition rate even they are faded away or partly occluded.
Keywords
Crosswalk detection; Feature vector; Road image; SVM; Histogram;
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