I have a model of a object and a image of the object, and tried to align the object to the image. The camera pose and fov are not known, as the image are collect from different users and taken with different camera.
What I do now is assuming the fov is 60 degree and solve this problem with solvPnp. However, the result are not good, unless use a right fov information.
Is there a function in OpenCV to solve this kind of problem?