Video tracking issues

Support Compositing and Post Processing
#1

Hi,

http://www.youtube.com/watch?v=CH2tdfnXBjA

I am interested in tracking the head in this video (I will have to do some rotoscoping because the hand keeps covering the face), but I was wondering what ways can be used to deal with things like the following:

  • there aren’t any real markers
  • the hand (mentioned previously) covers the face
  • the lighting changes because of shadows.

Is this a lost cause or do you think there are ways to solve these issues?
Thank you!

#2

I don’t think its possible to get a good track from that video

#3

Impossible? or just difficult? :frowning:

#4

even if you get enough tracking points, it probably would look good. Blender can only track rigid bodies(non deformable objects).

#5

Occlusion and shadows are the biggest issue but the dissolves dont help either. I track faces by tracking an eye or nose. If eye then you often have the other one for rotation point. As mentioned I wouldnt track a mouth as deformation would give odd results.

#6

For the dissolves, I have the underlying footage so I think I can deal with that. I think eye corners and nose may be my best bet. Any success with eyebrows? The eyebrows are fairly sharp in the footage. Any thought?

#7

I will post something if I ever get something half-decent :slight_smile: stay tuned!