For each image, a number of points extracted is displayed. When the extraction is complete, the calibration will be
computed; a score will be displayed for each image; and a final score displayed in the lower right.
IMAGING SYSTEM AND DISTORTION ORDER
To edit the characteristics of the imaging system model, click Edit by the imaging system drop-down menu. For most
setups, a standard system with first order radial distortion is appropriate. Some short focal length lenses or very large
camera sensors may require an order of 2 or, rarely, 3.
If you are unsure of the distortion order of your lens, try the calibration at each radial distortion order – 1, 2, and 3. If the
calibration score becomes significantly better when you increase the order from 1 to 2, or 2 to 3, then the lens does have
higher-order distortions. You can also add parameters to describe the prismatic and tangential distortions if necessary. You
will only need to do this process once for each new lens you work with.
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