[PD] wiimote with ir sensor bar
badmuthahubbard at gmail.com
Mon Oct 29 11:21:41 CET 2007
I thought I read that the ir-leds are angled slightly outward. Perhaps the
amount of light detected from each is affected by the angle, which could be
used to solidify the position?
On 10/28/07, Roman Haefeli <reduzierer at yahoo.de> wrote:
> On Sun, 2007-10-28 at 01:12 -0700, punchik punchik wrote:
> > Hi , is there any way of using the ir sensor bar with
> > the wimote in pure data?
> yes, that is possible. the sensor bar is nothing else but two groups of
> ir-leds, that are used as a reference point in space. you couls also use
> a lighter (or up to four) instead. the wiimote just sends you the
> coordinates of the reference points' (ir-led, lighter, whatever)
> projection on the wiimote's intenal ir-camera.
> > Is it posible to track the
> > movements of people carrying wimotes in real space
> > with puredata?
> no, that is not quite possible with the sensors, that wiimote is
> equipped with. it has 3 accelerometers (x, y and z), but it is very
> difficult (probably impossible) to calculate a position out of this
> data. it would be possible to calculate the position with the data from
> the ir-camera, but then you would need at least 3 reference points and
> they would have to be always visible for the cam. since the angle is
> quite narrow, it is probably not too suitable for position tracking.
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