opencv - Camera Calibration: Can Wrong Dimension Give Correct Distortion? -


when calibration camera, 1 must provide set of 'world points' (points on real grid real world units), , corresponding set of 'image points'.

my question is: if factor 'world points' arbitrary factor (in other words, give wrong dimension of real world units), still correct values of distortion , principle point (ignoring obvious wrong values of focal length)?

in other words: distortion coefficients , principle yield stay numerically same, regardless of world points scale?

yes.

it using own unit of length millimeters , inches.

the result still makes sense in own unit.

the principle point should have same value because measured in pixels of sensor, not depending on physical length. distortion coeffs should same because ratios of 2 metrics.


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