I want to thank Mac McIntosh for this helpful tip.
Kinovea is a free and open source solution for video analysis.
It is mostly used by sports coaches and athletes to explore, study or comment a performance.
In addition to this primary focus, Kinovea is also used by animation artists, podiatrists, and ergonomics engineers.
Visit http://www.kinovea.org/en/ for more information.

The integrated file explorer lets you browse your video collection visually. Supported files are displayed as animated thumbnails. A shortcut manager lets you save bookmarks of frequently accessed directories for faster lookup

A dual screen mode allows you to compare two performances side by side. Videos can be synchronized on a common event for dynamic comparison.

The line and chronometer tools let you measure distances and times. A semi-automated tracking tool let you follow motion path and measure speeds.
THANKS! I HAVE BEEN LOOKING FOR SOMETHING TO USE WITH MY ATHLETES, NOW I HAVE IT!
thank Mac McIntosh!
Nice! Thx alot Mac & Jimson :) Long live open source!!!!
This is awesome! I sadly was just using Windows Movie Maker to break down film for form analysis at half speed but this already looks like it has some really cool uses with the angle, magnifier, and easy to use interface. March Madness will have to wait, there is film to be scrutinized.
This oddly looks exactly like Eagle Eye, which also is free for coaches.
Thanks for the mention!
@Ross: Eagle Eye is just a rebranded version of Kinovea, without, to my knowledge, any additional features. If you look carefully, you will probably find Kinovea traces in some places. For example, usage of the KinoveaVideoAnalysis – KVA file format. Even on their site they didn’t remove all mentions, on the “New features” page for example :-)
For a long time they were in breach of the GPL licence, it seem they are trying to make an effort in this area…
Anyway, I encourage anyone to report problems, ideas, feature requests, usability concerns, etc. (On the Kinovea forums if possible, but we also have a public bug tracker and an idea backlog where you can vote)
Thanks!
Ah interesting, I’ve been using Eagle Eye for a little bit, but only really because that’s what I was introduced to first. I’ll have to give Kinovea a try!
yeah, my imac pro can’t open it! whassup?
Lisa, I’m running Kinovea very successfully in a Windows 7 virtual machine under VirtualBox on my Macbook Pro. The Pro has 8GB Ram and I have dedicated 3GB to the virtual machine. The performance is excellent. If that is gobbledegook to you I could get really boring and describe in detail how I am set up. Just let me know on this thread.
My mac is only 4 GB I checked. It would be useful to slow down a video, and I was interested in the angle compensating calculation discussed elsewhere here, to put what’s in perspective on a grid.
I am interested in ice skating training.
I have theories about what happens and how a correct move is generated and executed, but would like to check them.
Hey John,
Is your offer for a detailed description of how to set up kinovea in Virtualbox still on the table? I don’t mind one bit if it’s boring!
Is there a Mac version of this or one coming out any time soon? Thank you
In your use with kinovea is there a way to measure angle (knee in particular) in motion? When I set the angle measure and then press play, the angle remains static??
Joe