Road Sign Detection in Images: A Case Study

Road sign identification in images is an important issue, in particular for vehicle safety applications. It is usually tackled in three stages: detection, recognition and tracking, and evaluated as a whole. To progress towards better algorithms, we focus in this paper on the first stage of the process, namely road sign detection. More specifically, we compare, on the same ground-truth image database, results obtained by three algorithms that sample different state-of-the-art approaches. The three tested algorithms: Contour Fitting, Radial Symmetry Transform, and pair-wise voting scheme, all use color and edge information and are based on geometrical models of road signs. The test dataset is made of 847 images 960 × 1080 of complex urban scenes (available at www.itowns.fr/benchmarking.html). They feature 251 road signs of different shapes (circular, rectangular, triangular), sizes and types. The pros and cons of the three algorithms are discussed, allowing to draw new research pers...

• Type: Conference
• Year: 2010
• Where: ICPR
• Authors: Rachid Belaroussi, Philippe Foucher, Jean-Philippe Tarel, Bahman Soheilian, Pierre Charbonnier, Nicolas Paparoditis
• Keywords: Computer Vision, ICPR 2010, Road Sign Detection, Road Sign Identification, Road Signs