| View previous topic :: View next topic |
| Author |
Message |
glenn.dawick
Joined: 13 Jul 2010
Posts: 16
|
 Posted: Mon May 09, 2011 7:51 am Post subject: Object Tracking With A Single tracker |
 |
|
Hello all..
This has been discussed before, but the question was never resolved.
I have a completely still camera, with six objects moving around in frame.
They are all easily track-able, but are too small for more than one tracker.
Think of this shot as a still camera, looking directly down, with a few balls rolling around in frame.
I am not in need of a 3D solve, I just want the 2D tracking information from these 6 moving objects. I don't care about Z depth, just Y and X movement: up / down / left / right.
Is there a way to get this 2D object solve information from Syntheyes? I have looked through the tutorials, and searched through the forums without any luck so far.
What I am thinking:
Track all objects with a distance constraint from the camera.. Then there is the problem of solving.. I cannot solve a single tracking marker object. I think it needs at least 4?
(I want to use Syntheyes, as I am a comfortable user, I need the tracking data for use in Maya afterwards, and this job's budget will not allow more software to be purchased).
Any help will be appreciated, thanks.
- Glenn |
|
| Back to top |
|
 |
GraphicsKid
Joined: 25 May 2009
Posts: 480
|
| Posted: Mon May 09, 2011 6:13 pm Post subject: |
|
|
| What about export->2-d tracker paths? |
|
| Back to top |
|
|
glenn.dawick
Joined: 13 Jul 2010
Posts: 16
|
| Posted: Sun May 15, 2011 10:40 pm Post subject: |
|
|
| Yes I will try exporting with the script once tracked, but the problem lies within getting an actual track from just a single point to start with.. |
|
| Back to top |
|
|
The Happy Friar
Joined: 29 Mar 2011
Posts: 102
|
| Posted: Sun May 15, 2011 11:05 pm Post subject: |
|
|
| I've been experimenting with this & you can get the 2d coords but not 3d. |
|
| Back to top |
|
|
GraphicsKid
Joined: 25 May 2009
Posts: 480
|
| Posted: Mon May 16, 2011 12:19 am Post subject: |
|
|
That's because there ARE no 3d coords with just one tracker.  |
|
| Back to top |
|
|
glenn.dawick
Joined: 13 Jul 2010
Posts: 16
|
| Posted: Mon May 16, 2011 1:33 am Post subject: |
|
|
| The Happy Friar.. You were able to solve a single point track? All I am after is the 2D data. |
|
| Back to top |
|
|
GraphicsKid
Joined: 25 May 2009
Posts: 480
|
| Posted: Mon May 16, 2011 1:25 pm Post subject: |
|
|
| It can't be done, it's mathematically impossible. You'd have to punch in the coordinates manually. |
|
| Back to top |
|
|
The Happy Friar
Joined: 29 Mar 2011
Posts: 102
|
| Posted: Mon May 16, 2011 2:20 pm Post subject: |
|
|
| GraphicsKid wrote: | | That's because there ARE no 3d coords with just one tracker. |
Can't get any 3D unless you solve.  You can't solve without at least 6 (or so) I believe. You just play it through & it will track the 2D locations. So I'm not even trying to solve, I was just tracking a specific point. Trying to emulate the point tracking Boris/AE has. |
|
| Back to top |
|
|
GraphicsKid
Joined: 25 May 2009
Posts: 480
|
| Posted: Mon May 16, 2011 5:01 pm Post subject: |
|
|
| I wish AE has a point tracker as fast/accurate as Syntheyes. |
|
| Back to top |
|
|
The Happy Friar
Joined: 29 Mar 2011
Posts: 102
|
| Posted: Tue May 17, 2011 12:11 am Post subject: |
|
|
| Just double checked, you manually add points, play through your footage to do a 2d track, then export the 2d trackers. Works great. |
|
| Back to top |
|
|
glenn.dawick
Joined: 13 Jul 2010
Posts: 16
|
| Posted: Tue May 17, 2011 3:02 am Post subject: |
|
|
| Yes! Nice one.. I have got that far.. Exported the trackers as 2D data, but here lies the problem of transferring that data onto objects in my maya scene... |
|
| Back to top |
|
|
damian_d3
Joined: 16 Apr 2008
Posts: 61
|
| Posted: Tue May 24, 2011 1:31 am Post subject: |
|
|
Martin Kulig posted his private syntheyes to maya pipeline in the forum.
http://ssontech.com/phpBB2/viewtopic.php?t=1257
It has a 2d to maya exporter that exports 2d trackers in the screen space of the imported camera. Parent a object on them and animate the Screen space Z axis to fill the missing depth information. |
|
| Back to top |
|
|
glenn.dawick
Joined: 13 Jul 2010
Posts: 16
|
| Posted: Tue May 24, 2011 10:09 pm Post subject: |
|
|
| Great, cheers all.. Slowly but surely got through this |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
