Recognition of the triangular and rectangular road signs using passing lines intersection

A road sign recognition system automatically detects road signs as images captured by the camera installed in the car. It helps the driver to drive better. Most of the existing systems have two phases, including detection and classification. This paper presents Passing Lines Intersection as a innovative method for the classification phase. It is capable to classification the triangular and rectangular road signs swiftly and showing 89.26% accuracy rate. The main idea of the proposed method for road sign classification is to analyze special lines that are unique in all signs. A significant characteristic of the method is independence of the scale, direction and rotation of the road signs. Furthermore, the database used in the system can easily change for different countries having different signs.