Ok, so I shot some footage with my Iphone 4 (720p 24fps). I want to track the camera and composite some 3d in Softimage. *I put some markers in the shot to track.
I am using Pftrack. *I manually tracked a couple of spots including the markers. *I ran the autotrack and deleted the bad tracKs. *Everything looks good up to this point. *I used the estimate focal length tool, and solved for the cam. *The grid seems to be in the right spot. *But when I put down some test geo, it seems a jittery. *Any ideas? *I can post some vids later if that would help.