An improved image sensing wheel alignment system for calculating vehicle
wheel alignments having a detector array for receiving an input image
containing vehicle wheel alignment information. An image sensor
controller controls the detector array to receive the input image during
an acquisition period, the image sensor controller examining signals from
the image detecting elements individually at a plurality of times during
the acquisition period to determine exposure levels for image detecting
elements. An output image from the image detecting elements at the end of
the acquisition period contains wheel alignment information for use in
calculating vehicle wheel alignments.