Motion tracking with perspective change

I am beginning to appreciate the amount of work that is involved in good motion tracking and compositing. It’s amazing what Mocha can do, but of course, it’s only an imperfect algorithm. It really can’t see like human brain. It, however, is a great tool in tracking motion when there is good clean footage to start with. On this footage, it actually tracked pretty well for 80% of the footage. I had to manually keyframe the rest, especially in the beginning, when the perspective change was the greatest with camera movement.

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