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Smoothen Motion Tracking Result???

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Sascha Engel
Smoothen Motion Tracking Result???
on Mar 9, 2010 at 2:42:14 pm

Hi Everybody,

got a little problem: I tracked the Motion of a shot, to attach some text to it - so it scales and moves with it. But the tracking is too precies - which results in too much motion (jiggering and jerking of the text) - any way to smoothen the tracking result a bit - so the attached text moves less???

Thanx a lot for any help!!!!


Sascha


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Joey Foreman
Re: Smoothen Motion Tracking Result???
on Mar 9, 2010 at 3:09:42 pm

Try selecting all the keyframes and adding Smoother (Window > Smoother), playing with different values. Undo if you don't like the results, and tweak to taste.
There is also a Smooth expression, but I haven't used it.


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Philippe Lessard
Re: Smoothen Motion Tracking Result???
on Mar 9, 2010 at 3:10:28 pm

Hi Sasha,

If you look in your windows menu in After Effects, you should see the smoother, click it, it open a windows where you can choose a tolerance to smooth your "pos/rot/scale" keys.Select all the key you want to smooth then try to use a tolerance of 1 ,should do the trick, otherwise play with the tolerance.There also a script called tracker viz, but I never tried it, maybe you should look at it.

Hope this help


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Sascha Engel
Re: Smoothen Motion Tracking Result???
on Mar 9, 2010 at 7:25:45 pm

HI Thanx for the fast Reaction. I tried it, but I am facing some problems. I can just select always some keyframes in a row - then the smoother 'apply' button highlightens. When I select all in one line - it stays greyed out. And I do not have options to choose (just spatial). When it's set to 1 it seems to make it even jerkier than it was :-(

Any idea?

Sascha



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Dave LaRonde
Re: Smoothen Motion Tracking Result???
on Mar 9, 2010 at 7:47:13 pm

[Sascha Engel] "Any idea? "

Yes -- duplicate the layer that needs to be tracked, apply a new tracker, and motion track a different point if you can. Play with the tracking settings if necessary -- try a little pre-blur.

Depending on your shot, you're not always going to get a good track. Sometimes you have to keep at it.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Sascha Engel
Re: Smoothen Motion Tracking Result???
on Mar 10, 2010 at 7:12:22 am

Thanx Dave, I will give it a shot.
Funny is that it's not bad - it just tracks it too good :-)
I will try the pre-blur, maybe that will bake the cake.


Greetings,

Sascha


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Sascha Engel
Re: Smoothen Motion Tracking Result???
on Mar 11, 2010 at 6:49:26 am

Well, I tried a lot, re-tracking, smoothening, just applying to x-axis and so on.
But it is still jerky.
Could it have to do something with the fact, that it is Apple Intermediate Codec / Quicktime file?

Sascha


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Joey Foreman
Re: Smoothen Motion Tracking Result???
on Mar 11, 2010 at 6:55:26 am

Doubtful. AIC is a great codec.

Have you tried just randomly removing intermittent keyframes, changing their interpolation, and/or selecting all but the 1st and last keyframes, right-clicking and choosing Rove Across Time?

Also try posting this to the Expressions forum to see if anyone there has some ideas.


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James Autery
Re: Smoothen Motion Tracking Result???
on Mar 19, 2017 at 12:57:30 am

I'm also having trouble with the smoother window. The apply button is greyed out. Any ideas why? Here's a screen shot.



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