Patent ID: 7106886

Claim:
A road white line recognition apparatus, comprising: a photographing device that photographs a road extended in a forward direction of a vehicle; a deflection luminance detecting section that detects a deflection luminance information when a luminance information of an image photographed by the photographing device is represented by a luminance information that a surface of the road naturally has and the deflection luminance information from which the luminance information that the road surface naturally has is excluded on the basis of an approximation function obtained by approximating the luminance information of the photographed image to a horizontal direction of the photographed image; a normalized luminance information detecting section that detects a normalized luminance information by excluding the deflection luminance information from the luminance information of the photographed image; and a road white line detecting section that detects a road white line on the basis of the normalized luminance information detected by the normalized luminance information detecting section.