What is the high precision calibration unit and what is it for?
ADI: As with any system, there must be a “calibration” device that is used to calibrate the recorded image. This is simply and object that has points of known distances relative to a single origin. These points are digitized as part of the analysis and are used in the Transformation algorithms to compute the spatial coordinates from the digitized information. Any object can be used for the calibration as long as there are points with “known” X, Y, Z coordinates. Since this is the basis of all the computed data, the points should be measured as accurately as possible.
