ROS Resources: Documentation | Support | Discussion Forum | Service Status | Q&A answers.ros.org
Ask Your Question
0

camera calibration with different chess board size

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

anirban gravatar image

Hi,

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 http://wiki.ros.org/camera_calibration. 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.

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
0

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.

edit flag offensive delete link more

Comments

Thank you, it helped

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

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

1 follower

Stats

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

Seen: 39 times

Last updated: Dec 12 '18