Road Boundary Detection in Challenging Scenarios

Visual Computing Lab1 Database Research Group2
Faculty of Science1,2
University of Ontario Institute of Technology
2000 Simcoe St. N., Oshawa ON L1G 0C5


This work proposes a new technique to detect the dominant road boundary and estimate the vanishing point in images captured by traffic cameras under a wide range of lighting and environmental conditions. The technique starts by dividing each input image (a) into homogeneous regions through superpixel segmentation (b). Then, the technique performs polygon approximation on superpixel contours to get edges (c). The edges are clustered using bottom up hierarchical clustering (d, e, f) and statistical measures are used to identify the top-ranked clusters; each cluster represents a candidate road boundary in the image (g). The top-ranked clusters are then paired and filtered according to image perspective and road-activity (h). Finally, the technique returns the top-ranked cluster pair as the dominant road boundary.

Vision pipeline



For technical details please look at the following publications


The authors would like to thank Natural Science and Engineering Research Council of Canada for their generous financial support of this research.