1. A method of performing motion analysis on a moving object comprising: using a computer to perform steps comprising: a) recording movement of the object in video at a frame rate, the video comprising at least a first frame and second frame; b) isolating the object from background data in at least the first frame and the second frame; c) in the first frame, containing the object in a quadrilateral having mathematical coordinates A, B, C and D, where: i. the side defined by A-B and the side defined by C-D, if extended, would intersect at a first vanishing point u; and ii. the side defined by A-D and the side defined by C-B, if extended, would intersect at a second vanishing point v; d) determining a rectangle in physical space having physical coordinates A′, B′, C′ and D,′ where: i. the side defined by A′-B′ and the side defined by C′-D′ are parallel; ii. the side defined by A′-D′ and the side defined by C′-B′ are parallel; e) associating the quadrilateral with the rectangle such that a first point on a side in the quadrilateral defines a physical location defined by a corresponding point on a corresponding side in the rectangle; f) determining the physical location of the object contained by the quadrilateral by associating the mathematical coordinates of the quadrilateral to the physical coordinates of the rectangle; g) repeating steps c-f for the object in the second frame; and h) recording the distance the object traveled as the difference between the physical location of the object in the first frame and the physical location of the object in the second frame.