Science-Related RAW Video Recording Request

Started by nhergert, June 04, 2014, 08:00:08 AM

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nhergert

Hello Magic Lantern users!

I have a super-cool algorithm that I would like to run with some uncompressed high resolution fast-frame-rate video, but lack the camera to do it. I would LOVE it if someone were to spend a few minutes of their time (and camera) to record raw video of their relatively still face in a well-lit space (natural lighting is easiest). I can give FTP login information to upload the video.

Another idea I had was of recording blue sky for a few minutes (with a solid object for alignment just in case) and see if I could extract the stars by averaging long enough. This is optional, but doesn't take too much more time.

The more light there is the better the color changes will turn out, but be sure that there's still some visible noise captured. It would be cool to capture at the highest frame rate possible while not downsampling/averaging at all (it looks like 30fps is the best I can get). Another option is picking the center section of pixels and sampling those at high rates. Other than that, don't compress it, as that's where the information lies! http://en.wikipedia.org/wiki/Dither 8)

I will post a link to my results here and definitely give you attribution!

For those of you curious in how it works, it essentially eliminates the noise and boosts the sampling resolution of the video by sacrificing spatial resolution using averaging. This lets you do really cool effects like look at someone's blood moving through their face in real-time on even a cheap webcam! Here's a short webpage with example video and pictures: http://nhergert.homenet.org/doku.php?id=home:slowmo