Open Source Video Analysis Software

marcag - 2010-12-16 7:24 PM I use it. It's pretty good. It's not DartFish but it does the job for measuring angles

carlwithac - 2010-12-16 7:13 PM Kinovea is some pretty cool open source video analysis software.  I just used it today to get some objective angle measurements and dial in my bike fit on the trainer.

I'm not posting to debate the merits of spending $$$ to go get a fit.  I just thought I'd share a pretty cool program if anyone has been thinking about checking the logistics of their position.  One can also use it to check out the positions of other riders as long as they have a video or an image.  It's basic and I'm sure paying money could get a lot more functionality but for free, it works well.

Anyone done something similar before?

JorgeM - 2010-12-17 7:49 AM

Have you used Dartfish before? how would it compare to it?

marcag - 2010-12-17 10:12 AM

I have watched people use Dartfish but I wasn't driving the keyboard. So for example one really cool thing they did was fix three points (hip, knee, foot) and watch the angle vary through the peddle stroke. I could not do this with kinovea. I could freeze a frame, I could then draw the angles, but if I move frame by frame, the angle would not vary as you can in dartfish.

Also I could not get distances. So if I want to measure the distance between two points, I cannot. For example i saw a cool video on how much people bob up and down when running. With Dartfish you could draw two lines to show the highest and lowest point and then use the software to measure it. Cannot figure out how to do that with kinovea.

Maybe I just don't know how to use it properly.

But for playing a video, freezing frames, annottating that frame, measuring angles, drawing points and lines, it's great.

for that first pic. You could draw all the lines, do all the angles. I don't think you could have the s/w measure that .99m