Systems and methods for calibrating image capturing modules

A system for field calibration of an image capture module, comprising:

• a vehicle having a beam for orienting components of the system for field calibration while the vehicle is in motion;
• and
• an image capture module operably coupled to the beam, comprising:
• a camera configured to capture images of a target disposed proximate a roadway;
• and
• a memory configured to store the captured images of the target;
• wherein the image capture module is configured to perform the field calibration of the image capture module by:
• capturing, via the camera, a first image of a target;
• initializing a vehicle encoder operably coupled to the vehicle with a vehicle encoder rate;
• adjusting a contrast between two pixels identifying the boundary of light and dark portions of target;
• comparing the number of lateral pixels to the number of longitudinal pixels;
• and
• adjusting the vehicle encoder rate until the number of lateral pixels matches the number of longitudinal pixels.