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camera calibration with different chess board size

asked 2018-12-12 11:02:51 -0500

anirban gravatar image


I want to perform monocular camera calibration using a chessboard that has 6X6 squares in it where each square has side length as 0.054 m. The number of squares in the chessboard and side of squares are different than the example shown in My question is that can I get good calibration with the modified chessboard that I mentioned I have been using which is different from th given example?

Thank you in advance.

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answered 2018-12-12 12:39:19 -0500

ahendrix gravatar image

Yes, you should be able to use that size of chessboard with the camera calibrator by passing the --size 5x5 --square 0.054 command line options. (5x5 because the number of crosses is one less than the number of squares)

The resulting calibration will probably be decent if each square of the chessboard appears much larger than your camera's pixel size in most of the calibration images. The checkerboard should probably fill 10-100% of the camera's field of view while calibrating.

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Thank you, it helped

anirban gravatar image anirban  ( 2018-12-13 21:29:27 -0500 )edit

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Asked: 2018-12-12 11:02:51 -0500

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Last updated: Dec 12 '18