Through the use of image processing and set-up calibration techniques, an accurate position of an object may be determined. Embodiments of the present disclosure measure a change in position over a known time interval. Accordingly, the change in position aids in measuring the object's metrics such as, for example, position, velocity, acceleration, maximum velocity, maximum acceleration and/or maximum deceleration. The object can be, for example, any person, individual body part, a group of body parts, a vehicle, or any other movable object.