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Optical Flow Bubbling

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Andrew Cioffi
Optical Flow Bubbling
on Aug 18, 2011 at 4:14:28 pm

I am trying to slow down some footage that I have shot on canon 7d at 60fps. I have brought it in to Motion and adjusted the speed and placed the Optical Flow on it. When I have finished rendering it it has a bubbling effect that is on the blended frames and I was wondering if there was a way to smooth these out. The footage is of building facades shot from a moving car. Is the fact that the camera is moving and not the subject part of the problem?


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Stephen Smith
Re: Optical Flow Bubbling
on Aug 18, 2011 at 4:20:09 pm

This affect is best achieved with a locked down camera and the simpler the background the better. Sorry, I know that is of no help at this point but hopefully in the future.

Stephen Smith
Utah Video Productions

Check out my Motion Training DVD

Check out my Motion Tutorials


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Andrew Cioffi
Re: Optical Flow Bubbling
on Aug 18, 2011 at 4:26:19 pm

That was my thought too. Thank you for your help and I definitely learned for the future.


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Andy Neil
Re: Optical Flow Bubbling
on Aug 18, 2011 at 5:20:19 pm

How slow are you trying to get it?

Andy

http://www.timesavertutorials.com


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Andrew Cioffi
Re: Optical Flow Bubbling
on Aug 18, 2011 at 6:29:52 pm

I was slowing it down to 15% because that is what I read to slow it down to. Is that too slow?


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Jonan Grobler
Re: Optical Flow Bubbling
on Aug 23, 2011 at 8:07:39 am

You can get a pretty decent slomo (50%) if you take the clip into Cinema Tools and conform it. Then slow that slomo clip down with Optical Flow, just not so much.


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