CHROMATIC ABERRATION COMPENSATION FOR VEHICLE CAMERAS

摘要

A vision system of a vehicle includes a camera disposed at a vehicle and having a field of view exterior of the vehicle. The camera includes a lens and a pixelated imaging array having a plurality of photosensing elements. The camera is operable to sense color via color filters at respective photosensing elements. An image processor is operable to process image data captured by the camera. The vision system is operable to determine an aberration of colors in the captured image data and to correct the aberration of colors. The vision system determines the aberration based on parameters of the lens, and the vision system may corrects the aberration of colors by scaling the color channels according to a location of the respective pixels and the respective parameters of the lens for that location.

主权项

1. A vision system of a vehicle, said vision system comprising:
a camera disposed at a vehicle and having a field of view exterior of the vehicle; wherein said camera comprises a lens and a two dimensional pixelated imaging array having a plurality of photosensing elements arranged in rows and columns of photosensing elements; wherein said camera is operable to sense color via color filtering at photosensing elements of said pixelated imaging array; an image processor operable to process image data captured by said camera; wherein said vision system is operable to determine color aberration in the captured images; wherein said vision system determines color aberration based at least in part on parameters of portions of said lens that correlate to respective pixel portions of said imaging array; and wherein, responsive at least in part to processing of image data by said image processor, said vision system at least in part corrects the color aberration via correlation of respective pixels of said imaging array to parameters of respective portions of said lens focusing light at those pixels.