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By Guillaume Emont.
This talk is about taking pictures from above with a big latex balloon, helium, strings, duct tape and CHDK, and making a nice video with the pictures using python, GStreamer and OpenCV.
Some friends of mine and I got pretty busy last year on a crazy balloon photography project. I want to share that experience, say what worked (helium, CHDK, GStreamer) and what didn't (crazy kite-balloon ideas, arduino connectivity, and some other things, all due to a lack of time). Hopefully, that would motivate hackers to get out of their basement and go do cool things under the Sun.
- The project blog: http://balloonfreaks.mooo.com/blog/
- Stabilisation code: https://github.com/guijemont/GstStabilizer
- Video recording: http://video.fosdem.org/2012/lightningtalks/Hacking_in_the_real_world.webm