Today I succeded with my shot.
Atleast as far as I know.
I have posted some questions before in this thread:
http://www.vfxtalk.com/forum/pftrack…tml#post141033
Anyway people requested me to upload pictures for them to help me. Now I have a pretty good track but to learn more I thought Id just ask you guys what type of worklflow you would apply to the specific shoot.
Camera: RED ONE
Lens: Tokina 11 – 16mm
Feature tracks: 10
Autotracks: 575
FPS: 120
Frames: 1600
Size: 2048 x 1024
Type: tiff sequence
It was filmed with a steadicam rig and the operator is running through the scene but since it is 120 fps it is a pretty long shot. In the beginning it is quite blury so that is where most of my problems lye.
The camera enters the room in an arc and then pans through the room focusing on the table.
I started by doing an auto track in the middle where there are loads of good tracking points. The red parts in the images ar approximations of my masks that were used to get rid of bad areas.
After auto tracking I solved the middle are and extended on by more auto tracks. Then I deleted bad points and added my user tracks and improved the solution. Still my solution wasnt good enough so I used the clean features thing and deleted some more points and created 5 different constraints. Then improved the solution again.
The result is a good but not exellent track with a camera error of RMSE 0.416 pixels and Inlier RMSE 0.378 pixels.
Now this is one of the first times I am tracking so I have learned alot but still have loads of questions.
Is this a good error result considering the size of the footage?
Is my workflow good?
If not how would you approach the shot?
My main problem right now though is that the file that I export to maya has ALOT of gliding. Something that isnt apperant at all in PFT.
Do I have to set up maya in a special way?
dew
Post a Comment