The Camera Calibration dialogue box allows you to select a camera definition as the default or "None" if you are using scans of film images (or if you have not yet calibrated your digital camera)
The Delete button will remove the highlighted camera definition from the ASRix.INI file and Done will close the Camera Calibration utility and return you to your project.
The Add or Edit buttons will bring up the Calibration Parameters dialog box:
To calculate your camera's distortion parameters based on the current image and PTS file select the Calibrate button. The A1 and A2 fields will change to show distortion parameters calculated from the George Karras algorithms.
If you know the other parameters, in the Karras format, from a complete camera calibration you can enter them manually or you can select the Import button which will bring up the Import Camera Parameters dialogue box which will allow you to enter parameters obtained from other sources.
Another use of this feature is to import Camera parameters from other installations of ASRix. By selecting an ASRix.INI file or a .PTS file that contains camera information you can import them into your own installation where the definitions will be saved in your own ASRix.INI.
For more on this subject please read the section on Camera Calibration under Getting Started