Object Tracking 3D

[Anonymous]

🙄 Hi Guys, i tried to track a locked off shot with a character moving.I tested all the mayor 3D trackers,like boujou, 3d equalizer, matchmover and also syntheyes, but all of them had problems in tracking a strong motionblur. I mean are there no intelligent algorithms for interpolating between tracked and not tracked frames? (I mean a tracker that guess in which direction the point went ?) Especially boujou, which is not a object tracker, but it found many trackable features on my shot, but when it comes to solve the 3D camera, boujou totally failed. Even with supervised trackers,locaters and gold flagged points, it was not able to reconstruct the scene. I use boujou a lot and mostly i get almost perfect tracks, but these
tricky motionblur shots are still a problem, for all of them !! (The shot is done now by hand, but any suggestions or hints a still welcome)

Thanks MArk[/b]

[sinancg]

Depending on the shot you might need to do some manual tracking. Your motion blur problem may save the day. If there is a lot of motion blur this means the camera is moving very fast, so you can get away with some inaccurate manual tracking.

Just an idea…

Sinan Vural

[-k]

Mindmachine wrote:

🙄 Hi Guys, i tried to track a locked off shot with a character moving.I tested all the mayor 3D trackers,like boujou, 3d equalizer, matchmover and also syntheyes, but all of them had problems in tracking a strong motionblur. I mean are there no intelligent algorithms for interpolating between tracked and not tracked frames? (I mean a tracker that guess in which direction the point went ?) Especially boujou, which is not a object tracker, but it found many trackable features on my shot, but when it comes to solve the 3D camera, boujou totally failed. Even with supervised trackers,locaters and gold flagged points, it was not able to reconstruct the scene. I use boujou a lot and mostly i get almost perfect tracks, but these
tricky motionblur shots are still a problem, for all of them !! (The shot is done now by hand, but any suggestions or hints a still welcome)

Thanks MArk[/b]

I just had a similar problem. Head of actress coming into frame, looking into camera, going out of frame again. Lots of motion blur at the beginning and the end. I went through all trackers available (3DE, matchmover, boujou, inferno. In the end I had the best results in Maya Live.
I think this is really quite a good tracker if you don’t need automated tracking. The 2d tracking really works well ( better than the combustion/flame tracker, I think)
Use a higher number of root frames than the default and smaller filtering level.

worked for me.

-k

[Anonymous]

just got to thepixelfarm.co.uk and dl the pftrack. use the motion blur plugin.

:0

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