Abstract: A machine vision vehicle wheel alignment system configured with at least one cameras for acquiring images of the wheels of a vehicle, and an associated light projectors configured to project a pattern image onto the surfaces of vehicle components such as vehicle wheel assemblies. Images of the projected patterns acquired by the camera, are processed by the vehicle wheel alignment system to facilitate a determination of the relative orientation and position of the surfaces such as wheel assemblies in three dimensional space, from which vehicle parameters such as wheel alignment measurements can be subsequently determined.

Abstract: A method for enabling a vehicle wheel alignment system to compensate an imaging sensor coordinate system for changes associated with adjustments to the pose of an imaging sensor, following movement of a vehicle lift mechanism supporting a vehicle undergoing a vehicle wheel alignment procedure.

Abstract: A method of the present invention provides methods for processing images of vehicle wheel assemblies acquired during vehicle service procedures to determine vehicle wheel assembly pose components, from which vehicle wheel alignment angles may be calculated.

Abstract: A camera configuration for a machine vision vehicle wheel alignment system which does not dispose all of the cameras on a single rigid structure, such that cameras disposed to view the left side of a vehicle are movable independently of the cameras disposed to view the right side of the vehicle, while maintaining a common reference coordinate system for determining vehicle wheel alignment angles.

Abstract: A vehicle wheel alignment system utilizing a non-contact range finding system in conjunction with one or more optical imaging sensors to acquire images of a fixed target, fixed random object, or the vehicle wheels, from which three-dimensional information related to one or more optical imaging sensor positions or vehicle wheel alignment angles can be obtained.

Abstract: A machine vision system is configured to facilitate placement of a vehicle service apparatus relative to an associated vehicle. The machine vision system is configured to utilize images of optical targets received from one or more cameras to guide the placement of the vehicle service apparatus relative to the associated vehicle.