Hasta La Motion!

I am attempting to track the ground of this shot so i can place text onto it. I’m using a single camera with free motion and my focal length is constant but unknown. i am tracking a few points with user features only. (all seems to work fine since my earlier beginner post).

Now what i cant seem to wrap my head around is in the perspective view when i am attempting to orient my scene my features are all over in 3d space. how is it that i can get all the features to be on the same plane?

i attached a screen grab for a visual. if i am missing any information you might need to help please let me know.

thanks much.
alex

I’m a long term motion graphics hobbyist and now venturing my way into VFX to take me away from the daily office blues…

I’m currently using an FXPHD copy of PFTrack 5.0r8 via VPN and was wanting to try a little project of my own to test my skills… I have a concept but then I’ve hit a snag 😮

Basically I’d like to have a person walking around doing every day actions, and have a beating heart I’ve rigged in C4D beating in their chest, viewed like an x-ray and matching their movement of the screen, which could involve rotation and stretching.

Now I’m fine with the visual side of things – but as I’ve only just entered the realm of VFX, I’m a little confused as the the best approach I should take with the tracking and don’t want to charge along down the wrong path.

Would object tracking suffice for this sort of thing – or would the movement of clothes and limbs throw everything out of whack?

What do you feel would be the best workflow for this sort of FX shot?

Thanks for your help and input!

I can find little info on this besides the fact that it has a 1/3" back and that the camera shoots 1440 x 1080 at 16:9 natively. my plate is indeed 1440×1080 with a pixel aspect of 1.333

a chart i have found here

http://en.wikipedia.org/wiki/Digital…_angle_of_view

tells me that 1/3" genericaly works out to 4.8×3.6mm, this seems immensly small to me

has anyone tracked this camera before? I am geotracking a face from a stationary shot but need to check my back is all good first

many thanks

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