○Chinthaka Premachandra（Tokyo University of Science）・H. Waruna H. Premachandra（Wayamba University of Sri Lanka）・Chandana Dinesh Parape（Kyoto University）

This paper presents an image processing based automatic road crack detection method to develop complex road surface drivable functions for vehicles. First, the road areas which include cracks are extracted as crack images regarding the pixel variance of the road image. Then cracks are extracted from crack images by introducing a method on sample variance calculation and discriminant analysis. According to experiments using different road images, the new proposal is effective in detecting road cracks.