Road-sign segmentation and recognition in natural scenes

Abstract

The detection and recognition of road-sign is an important part of achieving intelligent vehicle. In the system, we use the HSI space to detect the road-sign which has been proposed. After detection, we use a method which we proposed for segmentation to get all road-signs in the image. Then we use the ratio of the size of road-sign and the size of the rectangle which is minimal and contain the road-sign to define the shape of the road-sign. Finally, in order to achieve real-time, we abstract hu moment of road-sign and use SVM for recognition in our system. Hundreds of images have been tested, and the system show high ratio of recognition and process rapidly.