Patent ID: 7319805
Filing Date: 2008-01-15
Classification: B60R,G02B,H04N

Abstract:
1. A vision system for a vehicle comprising: a light source generating an illumination beam; a receiver generating a first image signal and a second image signal, at least one of said first image signal and said second image signal being generated in response to at least a reflected portion of said illumination beam; and a controller coupled to said light source and said receiver, said controller generating an image in response to said first image signal and said second image signal; wherein said receiver in generating a first image signal and a second image signal generates an illuminated image signal having pixel intensity values I wherein said controller generates said image in response to a maximum image intensity threshold I wherein said controller determines pixel intensity values of at least a portion of said image to be approximately equal to where average intensity values I avg are approximately equal to and threshold difference Δ is approximately equal to I b,max −I b,min .