Hi guys, On 15/12/10 6:42 , Stephan Huber wrote: > Am 14.12.10 12:40, schrieb Christian Buchner: >> 1) what is the shortest distance that you can place yourself (or >> objects) in front of the Kinect and get good readings? > > the shortest distance is approx 50cm, the longest distance is about > 4.5m, it depends on your lighting conditions, after all the kinect > projects a point-grid into the room via infrared. As infrared is part of > the sprectrum emitted by the sun, the kinect works IMHO better without > direct sunlight :)
>From what I've heard you actually need some distance (2-3m) for best *game* >experience. The case might be different for other applications. >> 2) is the IR beam safe to the eyes when placing your face in front of >> the sensor at short distance? I am worried about hurting the retina. > > I think it is safe, as it's a consumer product and has AFAIK no laser > inside. IR can damage your eyes just as well, although not as instantaneously. But since you can't see the beam your pupil doesn't contract and there's a lot more energy entering the eye ball. But that's more of a concern for proper IR lights that put out a non-trivial amount of energy. I'd think the IR on something like the Kinect is more like the IR on a remote control. Hm, that does sound oddly familiar: we tried to use IR light combined with a camera to determine objects in the foreground from the background in a project once... is that what MS is doing? (We gave that up because of the above-mentioned potential damage to the eyes from the IR light.) Cheers, /ulrich _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
