Undistortion methods comparsion

[pavllan90]

Hello. Thanks for this repository. I have the following question. In addition to this repository, you have a repository https://github.com/matsuren/ocamcalib_undistort. It can also be used to get perspective and equirectangular straightened images. We have an OCam camera with a 210 degree FOV lens. Which of the calibration methods is better in our case? DoubleSphere or ocamcalib_undistort? Will there be a difference between them?

[matsuren]

Thank you for your question! Original OcamCalib only handles up to 195 deg FoV as you can see OcamCalib homepage. I heard somewhere that improved version of OcamCalib can handle wider fields of view, so you might be able to use https://github.com/matsuren/ocamcalib_undistort.

I remembered DoubleSphere worked well on more than 200 FoV fisheye camera, but you need ubuntu to use calibration tool as shown in here,

Thanks,