Adjusting the events seen in the Zapruder film to a video resolution provides a sample rate that is nearly twice that of the original recording - providing a smoother, higher quality motion sequence. 1.639 video frames exposed for every Zapruder frame. A chart was created listing all Zapruder frames versus their video frame equivalent. This chart was then used throughout the process of matching Zapruder film events with those in the virtual counterpart. Before proceeding, it's necessary to understand how motion paths are created within computer environments.
Linear motion represents constant velocity.
Spline motion , on the other hand, allows for the slowing down and speeding up of objects as they change direction or velocity. A spline motion path created between the same two points mentioned above, over an equal time period, would not contain 30 equal divisions. This concept of motion is important because it is the backbone of numeric interpolation . Distances covered by an object in less than a second are free from interpolation error as long as the rate of change in velocity is small, hence, the ability of the computer to predict where an object is when it is obscured from view for short periods of time.