Calibration: Camera
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Before delivery, all tracking cameras’ focus and aperture settings are adjusted to the customer’s requirements. After adjustment, each camera is calibrated in the A.R.T. labs, using a camera model with 10 parameters (“inner orientation”). During calibration this set of parameters is determined and stored in the camera’s memory. When tracking is active, the parameters are read out and used for image correction.
The camera parameters are just valid for a certain setting of focus and aperture. If these settings have to be changed, a recalibration has to be done in the A.R.T. labs.
