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 | 1 | initial version |
I suggest using an ARUCO chessboard (ChARUCO). That gives you a bit of tolerance if you slide out of the field of view, so you get more good frames.
Also, if you are using a lens labelled 92mm, but your camera focal plane is not the standard size (whatever that is for your lens), then the Effective Focal Length (EFL) will be different, as will the FoV.
| | 2 | No.2 Revision |
I suggest using an ARUCO chessboard (ChARUCO). That gives you a bit of tolerance if you slide out of the field of view, so you get more good frames.
Also, if you are using a lens labelled 92mm, but your camera focal plane is not the standard size (whatever that is for your lens), then the Effective Focal Length (EFL) will be different, as will the FoV.
And make sure to use lots of images that thoroughly cover the camera area, at many different angles. If they are all close to the same angle to the camera (ie, parallel to the focal plane) then you'll get worse results.
