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Joint Camera and Object Tracking
If both the camera and an object are moving in a shot, you can track each of them, solve them simultaneously, and produce a scene with the camera and object moving around in the 3-D scene. With high-quality source, several objects might be tracked simultaneously with the camera. First, you must set up rotoscoping or an alpha channel to distinguish the object from the background. Or, perform supervised tracking on both. Either way, you’ll wind up with one set of trackers for the object, and a different set for the background (camera).
Note : If the camera is not moving, that's fine, it's a straight object track that will track the object relative to the camera. If the camera is on a tripod, panning and tilting, that's also fine, set the camera to tripod mode. This discussion here about scaling both camera and object applies when both camera and object translate.
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