4 ms·
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 impl
by haxiomic 7y ago
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 https://www.youtube.com/watch?v=ssINeWRb58M
- lcrs 7y agoA lot of that group's publications are listed here, many involving optical flow: http://web.archive.org/web/20161014025823/http://gpu4vision.icg.tugraz.at/index.php?content=Cat_0 http://web.archive.org/web/20161014025823/http://gpu4vision.... Maybe this one from 2007: https://www-pequan.lip6.fr/~bereziat/cours/master/vision/papers/zach07.pdf https://www-pequan.lip6.fr/~bereziat/cours/master/vision/pap...
- haxiomic 7y agoOh amazing find Icrs, thank you! :)
- mlthoughts2018 7y agoThomas 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/Bro10e/ https://lmb.informatik.uni-freiburg.de/Publications/2010/Bro...
- manneshiva 7y agoI have seen similar results using Gunner Farneback's algorithm.
- chuanenlin 7y agoHi @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 https://github.com/lmb-freiburg/flownet2) should also be runnable on video or live webcam feed.
- haxiomic 7y agoThanks @chuanenlin, I found the article very informative at easy to digest :) Thanks for the link - can’t wait to have a play with it!