how to run extrinsics calibration

[manhha1402]

Hi,
I have 2 cameras with known intrinsic parameters and a chessboard. How should I compute extrinsic parameters between 2 cameras using the source code?
Thanks

[SalimKayal]

Hi,
You have to put the intrinsic parameters in a json file per camera
{'intrinsic': [[fx, 0, cx],[0, fy, cy],[0,0,1]],
'distortion_coefficients':[k1, k2, p1, p2]}
then you use that with the extrinsic script.
this script will ask you to annotate points on the scene taken by the cameras and will use those points to compute the extrinsic parameters.

[mg515]

When I start the extrinsic calibration, I click on the point in the frame, it asks me to input the real world x in cm. I then input an integer, but how can I continue? If I press Enter, only '?' appears. How do I confirm my input?

edit: apparently there is a problem in my system where it does not recognize char(10) when I press Enter.

[Ri-Bai]

When I start the extrinsic calibration, I click on the point in the frame, it asks me to input the real world x in cm. I then input an integer, but how can I continue? If I press Enter, only '?' appears. How do I confirm my input?

edit: apparently there is a problem in my system where it does not recognize char(10) when I press Enter.

are you solve this problem? I met the same