PT Track – jitters in solve

Hello,

I am working on a PF track scene, and I need some help. I have used PF track quite a bit but I’m working on improving my skills!

This is the footage I’m going to track:

http://www.youtube.com/watch?v=nQ-_qANAZlQ (I can’t get this to embed for some reason)

I used a consumer HD camcorder – a Panasonic HDC700, shot at full HD 1920×1080 50fps. I’m working with the footage a 25fps which helps with the ammount of wobble!

In PF track, using just auto features I get this result:

The solve is OK, but there are slight jitters to the camera, jitters that I want to remove before going into 3D. I can align the grid OK, and the camera lens is good (I’ve applied the correct distortion adjustment to the footage).

I’ve tried adding some user featers, but once solved the solve is very, very wrong – the grid has rotated itself by 45 degrees up into the air. Which has baffled me. What am I doing wrong?

Can anyone help me with how to remove the slight jitters I’m seeing?

Thanks,

Giles

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