I need to calibrate a camera to measure planar objects length/size. I know that I have to find/calculate the camera intrinsic and extrinsic (rotation and translation matrices) parameters using chessboard.

With the rotation and translation vectors I will be able to convert image points to world points like is explained here.

My question is related to the camera position, once the above process is done and camera is calibrated, if I move a bit the camera to another angle o distance, would it still give me good results? in another words is the camera calibrated for all possible 2D planes assuming camera/lens configuration (focus, focal length,aperture...) fixed?

closed as off-topic by mattdm, Hueco, xiota, Michael C, scottbb Jan 13 at 17:01

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    I'm voting to close this question as off-topic because this is about using a camera to measure objects, not using a camera to make photographs. – mattdm Jan 8 at 18:35
  • Where would it belong then, engineering? – rackandboneman Jan 8 at 19:49