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2 Video streams from 2 different cameras->Transformation between views?

Hi guys! Let's say I have 2 cameras.They are both looking at a scene where a marker exists,however these images are not the same(there is an offset between these 2cameras,e.g one is on top of the other). Now let's say I render a virtual cube on top of the marker that is tracked by one of the cameras.Next I want to draw the same cube,in the second camera's view.However for it to work I need to apply some transformations to the original cube.Can you tell me how can I find these transformations via openCV? What steps should I do?

2 Video streams from 2 different cameras->Transformation between views?

Hi guys! Let's say I have 2 cameras.They are both looking at a scene where a marker exists,however these images are not the same(there is an offset between these 2cameras,e.g one is on top of the other). Now let's say I render a virtual cube on top of the marker that is tracked by one of the cameras.Next I want to draw the same cube,in the second camera's view.However for it to work I need to apply some transformations to the original cube.Can you tell me how can I find these transformations via openCV? What steps should I do?

Update 1:

Both cameras are mounted on an oculus and they move in the same way.