How does undistortion works ?

asked 2016-11-28 06:38:29 -0500

Nbb gravatar image

I am reading the book Learning OpenCV by Reilly and I can't seem to figure out how the distortion coefficients are computed.

image description

1) How are the coefficients computed ? Is it through least squares fit ? Like how the homography matrix can be computed ?

1) How are the points even established ? If we use a chessboard we would only be able to obtain xd and yd i.e. the distorted points ? How do we get xp and yp ?

edit retag flag offensive close merge delete

Comments

Look in the opencv Doku probably you can find your answer there. Also you can look up "photogrammetry" books to make yourself clear what is mentioned there. The calibration of a camera is one of the important things there.

Vintez gravatar imageVintez ( 2016-11-28 08:10:47 -0500 )edit