Optitrack AR camera

hello everyone!
I’m use optitrack and Unity try to put DSLR/goPro camera image, mix 3D object in same screen,
-‘AVPro Live Camera’ to capture DSLR/goPro
-optitrack set DSLR/goPro as rigidbody send to Unity
but DSLR’s camera matrix different with Unity Camera
so I need camera calibration (matrix?)
I have ‘OpenCV for Unity’, but I don’t know how to do
Please tell me if someone know how to slove this problem
below link is same result

thank you!!

I faced the same problem, did you find the solution yet?

I faced the same problem, did you find the solution yet?