METHOD AND SYSTEM FOR CLASSIFYING PAINTED ROAD MARKINGS IN AN AUTOMOTIVE DRIVER-VEHICLE-ASISTANCE DEVICE

摘要

An automated, computerized method is provided for processing an image. The method includes the steps of arranging a digital camera on a vehicle body, operating the digital camera to provide an image file depicting an image of a scene related to vehicle operation on a road, in a computer memory, receiving from the memory the image file depicting pixels of an image of the scene related to vehicle operation on a road, and using an analysis of the pixels to generate an illumination invariant image of the scene. The illumination-invariant image is converted to a grayscale image and the grayscale image is then converted to an illumination-invariant color image.

主权项

1. For use in a vehicle, an automated, computerized method for processing an image, comprising the steps of:
receiving from a digital camera mounted on the vehicle, an image file depicting pixels of an image of a scene related to vehicle operation on a road, each one of the pixels having N band color values; generating an illumination-invariant image representation of the image based upon the N color bands of the pixels and as a function of a BIDR model; converting the illumination-invariant image representation to a grayscale image; and converting the grayscale image to an illumination-invariant color image wherein each pixel of the illumination-invariant color image is at an intensity set according to an intensity of a corresponding pixel of the grayscale image and having a color set to a color calculated as a function of the N color bands of a corresponding pixel of the image, adjusted to remove color shift caused by an interplay of incident and ambient illumination, according to the BIDR model.