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Calibration data for each camera is stored as ASCI to facilitate user modification.
The data is stored as follows;
(image width) (image height)
(pixel size) (aspect ratio)
3x3 rotation matrix
3 vector co-ordinate translation of camera origin
(number of distortion parameters) (distortion parameters)
- one of the aspect ratios will generally be set to 1.0.
- the absolute coordinate frame of the camera is determined
by the coordinate system of the data used during calibration.
- the origin of the camera is at the optical centre.
- the specification of distortion terms is optional and the
distortion model used within Tina is programmer definable.