>From Roderick Hodgson in R&D who is now actively hacking this platform (mostly in spare time, though we may have somethig for either Big Bang or Maker Faire):
http://www.adafruit.com/blog/2010/11/14/hacked-kinect-is-now-a-3d-video-capture-tool/ http://digitizor.com/2010/11/15/hacked-kinect-brings-futuristic-user-interface/ http://www.wired.com/gadgetlab/2010/11/kinect-running-on-multiple-platforms-looking-cool/ On Thu, Nov 18, 2010 at 4:48 PM, Jonathan Chetwynd < j.chetw...@btinternet.com> wrote: > ifixit teardown > > http://www.ifixit.com/Teardown/Microsoft-Kinect-Teardown/4066/1 > > ~:" > > > On 18 Nov 2010, at 15:22, Dirk-Willem van Gulik wrote: > > ...all this bumpf about how fancy they are[0] is just a load bollocks. >> >> I am wondering if them Kinect things are really working a lot simpler; and >> after waking up in the middle of a shower am now postulating that: >> >> 1. They have a simple static laser interference pattern (e.g. akin to >> [1] or those >> star projectors you can buy from street vendors). >> >> 2. However this one is very very fine and nicely randomish. i.e. dots >> less than a few >> mm appart. >> >> 3. They use a crappy low resolution normal monochrome web cam; with a >> black bit of glass so >> only IR gets let through. >> >> 4. They simply pass the image of this camera back. >> >> The reason that this works is that every 'pixel' at CCD level for >> distances of working range will have 1 to 100 or so 'tiny dots' on it - >> depending on the distance it is at. Which is why we have roughly the range >> we get; why we have such a near perfect 1/sigma callibration curve and why >> the range of values you get it so odd - and why they filter certain types of >> noise so badly. >> >> And perhaps, perhaps: >> >> 5. They do a phase locked loop amplifier loop in software by flashing >> the projector. >> >> But I doubt that given the noise/error artifacts. >> >> And that is really all there is to it. Anyone here with a good high-res >> SRL which can do enough IR detection to check if indeed this is the case ? I >> guess a fun test would be to use a mirror to project a few extra pixels onto >> a flat area - and see if that area suddenly jumps 'forward'. >> >> Thanks, >> >> Dw >> >> >> 0: >> http://www.wired.co.uk/magazine/archive/2010/11/features/the-game-changerand >> all the mystification on how they work. >> 1: >> http://www.zimbio.com/Popular+Topics+in+Astronomy/articles/vnjstT2fTM2/Green+30mw+Laser+Pointer+Pen+Style+Star+Holographic >> - >> Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, >> please visit >> http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. >> Unofficial list archive: >> http://www.mail-archive.com/backstage@lists.bbc.co.uk/ >> > > - > Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please > visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. > Unofficial list archive: > http://www.mail-archive.com/backstage@lists.bbc.co.uk/ > -- Ant Miller tel: 07709 265961 email: ant.mil...@gmail.com
