Motion Estimation with Optical Flow

Re:Motion Estimation with Optical Flow by haxiomic on Monday April 29, 2019 @05:11PM (#19782654)

Back in 2008 there was an amazing demo of realtime dense optical flow on a GPU[0] but all the links are dead now. I've searched hard for another comparable implementation since then but had no luck.

Does anyone have a hint on what technique they might have used?

[0] https://www.youtube.com/watch?v=ssINeWRb58M

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Re:Motion Estimation with Optical Flow by lcrs on Monday April 29, 2019 @05:35PM (#19782808)

A lot of that group's publications are listed here, many involving optical flow: http://web.archive.org/web/20161014025823/http://gpu4vision....

Maybe this one from 2007: https://www-pequan.lip6.fr/~bereziat/cours/master/vision/pap...

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Re:Motion Estimation with Optical Flow by haxiomic on Monday April 29, 2019 @05:43PM (#19782882)

Oh amazing find Icrs, thank you! :)

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Re:Motion Estimation with Optical Flow by mlthoughts2018 on Monday April 29, 2019 @10:41PM (#19784671)

Thomas Brox’s lab had a ton of these around 2008-2012 as well, such as [0]. I believe Brox had some freely available early CUDA program to calculate optical flow that was sort of SOTA for many years.

[0]: https://lmb.informatik.uni-freiburg.de/Publications/2010/Bro...

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Re:Motion Estimation with Optical Flow by chuanenlin on Tuesday April 30, 2019 @02:35AM (#19785631)

Hi @haxiomic, I'm the author of the article - thanks for reading! Several more recent approaches of computing optical flow with CNNs such as FlowNet2 (CVPR '17) (https://github.com/lmb-freiburg/flownet2) should also be runnable on video or live webcam feed.

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Re:Motion Estimation with Optical Flow by haxiomic on Tuesday April 30, 2019 @03:32AM (#19785842)

Thanks @chuanenlin, I found the article very informative at easy to digest :)

Thanks for the link - can’t wait to have a play with it!

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Re:Motion Estimation with Optical Flow by manneshiva on Tuesday April 30, 2019 @02:35AM (#19785629)

I have seen similar results using Gunner Farneback's algorithm.

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