Patent ID: 9466005
Filing Date: 2016-10-11
CPC Classification: B60R,G06K,G06T

Claim Text:
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; transforming the N bands to log color space values in a log color space; generating a log chromaticity plane in the log color space; identifying pixels meeting criteria indicating suitability for use in determining an accurate orientation for the log chromaticity plane, according to a BIDR model and based upon an analysis of the pixels of an image of a scene related to vehicle operation on a road, wherein the pixel analysis is based upon an estimate of lit road color; calculating an orientation for the log chromaticity plane, according to a BIDR model, as a function of the identified pixels; projecting the log color space values to the chromaticity plane to provide chromaticity representation values corresponding to the pixels of the image; and using the chromaticity representation values corresponding to the pixels to generate an illumination invariant image of the scene.