Is it possible to recalculate the plumb-bob coefficients for a given OpenCV calibration file, that was created using a rational-polynomial model?
Concerning group__calib3d.html, the plumb-bob model uses the coefficients [k1, k2, p1, p2, k3] while the rational-polynomial model uses [k1, k2, p1, p2, k3, k4, k5, k6].
The distortion model looks like
Thus, the rational-polynomial model just adds a denominator in the first term.
Do I have to refit the plumb-bob into the rational polynom, or is there some easier approach to get [k1, k2, p1, p2, k3]?
Here is an example of the rational-polynomial coefficient: [0.452407000, 0.273748000, -0.000110000, 0.000152000, 0.027904000, 0.817958000, 0.358389000, 0.108657000]
