calibration - 'Real World Projection' - distortion effect

[uni-bar]

problem: the calibration image of the charuco board after 'Real World Projection' looks distorted.

e.g

solution:

• capture more images of the chess board.
  ➤ try to add more angles and 3d positions

• run the 'Undistorted Camera' again

• run the 'Real World Projection' again