[Noisebridge-discuss] Kinect hacking/mapping?

Rikke Rasmussen rikke.c.rasmussen at gmail.com
Sun Apr 10 09:47:03 UTC 2011

More ideas for interesting things one could do with a Kinect if only one
could program:

- "real" eye contact during video conferencing
- interactive & collaborative white-boards (imagine one in every hackerspace
on the planet!)
- virtual collaborative work spaces

...if only one could program =/


On Sun, Apr 10, 2011 at 2:40 AM, Taylor Alexander <tlalexander at gmail.com>wrote:

> I have been messing with this myself the last few weeks.
> Im trying to build 3D models of my trunk to build the best sub box for my
> car (isn't the future awesome?). I also need to do a 3D scan of a fist for a
> sex toy someone wants me to make. :-)
> I tried the RGBD v.5 demo and its not bad. It correctly assembles multiple
> point clouds on the fly to build out a 3d model.... usually. Sometimes it
> gets confused and starts matching the point clouds wrong, and then you
> really can't so much with the data. It can be useful though, and it runs
> well in windows. Its worth a try.
> Most promising looks to be
> http://www.ros.org/wiki/openni/Contests/ROS%203D/RGBD-6D-SLAM
> After some messing around, I finally got it installed in Ubuntu on my
> laptop, but I have not tried scanning with it yet.
> Once you're done with either of the above softwares, you get a pointcloud
> file. The free and open source program meshlab can be used to clean up the
> point cloud data and turn it into surfaces. From there standard model
> software should be able to work with it. I found a link explaining how to do
> that in meshlab, but I'm not at my laptop right now. Ill try to remember to
> send that along too, or bug me if you have any troubles.
> Taylor
> On Apr 9, 2011 7:16 PM, "Lamont Lucas" <lamont at cluepon.com> wrote:
> > On 4/9/11 7:05 PM, Mitch Altman wrote:
> >> This sounds really promising for making 3d scans. Wouldn't it be cool
> >> to be able to get a 3d scan of something and then print it out in a
> >> MakerBot?
> >>
> >> I took a look at the kinecthacks.com link -- I couldn't find out there
> >> how it works, or why they call it "RGB-Demo". Is it using
> >> Red-Green-Blue light to somehow? Or, does "RGB" in this case stand
> >> for something different?
> >
> > There's at least two cameras and 3 modes on there. There's a typical
> > RGB output format, just like you'd expect, red, green, blue, but there's
> > also an output format where each pixel is represented by a "depth"
> > number. I suspect the name RGB-Demo is a play on the RGB-D output
> > name. Those output formats seem to be made from a set of custom
> > on-board hardware, at least one of which is produced by the camera
> > putting out a grid of IR dots and the second (IR) camera is using the
> > deformation of those dots to estimate shapes and depth.
> >
> > Ah, from the wiki page:
> >
> > "The depth sensor consists of aninfrared
> > <http://en.wikipedia.org/wiki/Infrared>laser
> > <http://en.wikipedia.org/wiki/Laser>projector combined with a
> > monochromeCMOS sensor
> > <http://en.wikipedia.org/wiki/Active_pixel_sensor>, which captures video
> > data in 3D under anyambient light
> > <http://en.wikipedia.org/wiki/Available_light>conditions"
> >
> > and they call the IR dot field "infrared structured light". The company
> > that made the onboard sensor has an open driver kit, but the
> > libfreekinect people have figured their own out from the usb protocol.
> >
> > Most annoying for me is that they use a weird USB plug that provides
> > 12v, and requires either a horrible hack job or at least using the AC
> > injector to break it back out to regular 5v USB.
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