Patent ID: 6600555
Filing Date: 2003-07-29
Classification: G01B,G01C

Abstract:
A system for identifying a target in a vehicle wheel alignment system, said target being viewed in the presence of noise, said system comprising:a first unit attached to a first wheel on a vehicle; a second unit attached to said vehicle and having a line of sight to said first unit; a target attached to said first unit, said target comprising a set of reference points having a known geometric relationship; an image sensor attached to said second unit for capturing an image of said target and of any noise points, said image sensor having an imaging element producing an image data-set representative of said image; and a processor operatively connected to said image sensor for receiving said image data-set therefrom, said processor including a program for determining measured relationships from said image data-set and comparing said measured relationships with said known geometric relationship to identify said target within said image and to distinguish said target from said noise points.