Commit Graph

9 Commits

Author SHA1 Message Date
Sergey Sharybin
9f32e83175 Weighted tracks
Added a weight slider to track which defines
how much particular track affects in a final
reconstruction. This weight is for sure
animateable.

Currently it affects on BA step only which in
most cases will work just fine.

The usecase of this slider is to have it set
to 1.0 most of the time where the track is
good, but blend it's weight down to 0 when
tracker looses the track. This will prevent
camera from jump.

Tutorial is to be done by Sebastian.
2013-10-26 13:22:38 +00:00
Sergey Sharybin
2ddbb5d1e1 Fix for plane track jittering
Jittering was caused by homography not being estimated
accurate enough.

Before this, only algebraic estimation was used, which
is indeed not so much great, Now use algebraic estimation
followed with refinement step using Ceres minimizer.

The code was already there since keyframe selection patch,
made such estimation a generic function in multiview/ and
changed API for estimation in order to pass all additional
options via an options structure (the same way as it's
done fr Ceres).

This includes changes to both homography and fundamental
estimation.

TODO:
- Need to document Ceres functors better.
- Need to support homogeneous coordinates (currently
  only euclidean coords are supported).
2013-09-30 09:35:04 +00:00
Campbell Barton
29cbf93b07 correct error in libmv stub, also correct typo. 2013-09-13 03:49:11 +00:00
Thomas Dinges
d75e14b31e * Compile fix, so disabling libmw works again. 2013-08-16 12:43:37 +00:00
Sergey Sharybin
24ce60cfe4 Merge plane track feature from tomato branch
This commit includes all the changes made for plane tracker
in tomato branch.

Movie clip editor changes:

- Artist might create a plane track out of multiple point
  tracks which belongs to the same track (minimum amount of
  point tracks is 4, maximum is not actually limited).

  When new plane track is added, it's getting "tracked"
  across all point tracks, which makes it stick to the same
  plane point tracks belong to.

- After plane track was added, it need to be manually adjusted
  in a way it covers feature one might to mask/replace.

  General transform tools (G, R, S) or sliding corners with
  a mouse could be sued for this. Plane corner which
  corresponds to left bottom image corner has got X/Y axis
  on it (red is for X axis, green for Y).

- Re-adjusting plane corners makes plane to be "re-tracked"
  for the frames sequence between current frame and next
  and previous keyframes.

- Kayframes might be removed from the plane, using Shit-X
  (Marker Delete) operator. However, currently manual
  re-adjustment or "re-track" trigger is needed.

Compositor changes:

- Added new node called Plane Track Deform.

- User selects which plane track to use (for this he need
  to select movie clip datablock, object and track names).

- Node gets an image input, which need to be warped into
  the plane.

- Node outputs:
  * Input image warped into the plane.
  * Plane, rasterized to a mask.

Masking changes:

- Mask points might be parented to a plane track, which
  makes this point deforming in a way as if it belongs
  to the tracked plane.

Some video tutorials are available:
- Coder video: http://www.youtube.com/watch?v=vISEwqNHqe4
- Artist video: https://vimeo.com/71727578

This is mine and Keir's holiday code project :)
2013-08-16 09:46:30 +00:00
Joseph Mansfield
c15ae082bb Code cleanup: libmv C API
Clean up inconsistencies in the libmv C API:
- All type identifiers are libmv_TypeName
- All function identifiers libmv_functionName
- Prefer libmv_nounVerb function names (e.g. libmv_featuresDestroy)
- Match Blender code formatting rather than Google
- Spelling corrections

Code review: https://codereview.appspot.com/11494044/
2013-07-31 13:48:12 +00:00
Sergey Sharybin
719c2f8163 Fixed compilation error after recent keyframes commit. 2013-05-30 12:05:28 +00:00
Campbell Barton
ff1a587e1c update libmv stub. 2013-05-14 03:06:58 +00:00
Sergey Sharybin
32faec1a53 Remplace bunch of annoying ifdefs in tracking.c with a libmv-capi_stub.cc
Makes code in tracking.cc much easier to understand and modify,
without worring to breck compulation with Libmv disabled.

It is still possible compilation will break due to libmv-capi
changes, but that's not happening so much often.
2013-05-12 22:17:37 +00:00