Thank!
I can see the point for sure. Thats what we did, we measured screen corners
using the tracker. But, if the tracker is child of camera beacon, how can it
be defined in an arbitrary coordinate system? It depends on the camera's
beacon coordinate system. I understand by now that we actually must convert
measurements of our screen coordinates to the same metric system of our
world. Isn't it?
Thanks. ;)
On Wed, Mar 10, 2010 at 12:38 PM, Dirk Reiners <dirk.rein...@gmail.com>wrote:
>
> Hi Pablo,
>
> On 03/10/2010 09:25 AM, Pablo Carneiro Elias wrote:
> > sorry, type mistake: [You've] (Dirk) replied one of our mails saying just
> > that, that the planes are defined at tracker space, at that point
> everything
> > seemed to be fine and make sense.
>
> the idea behind that was that it's usually non-trivial to get the
> projection
> screen corner coordinates. Just taking the tracker and putting it in the
> corners
> seemed to be the easiest way to do it, which also creates the
> correspondence
> between camera and projection surface (which is what's really needed for
> head-tracked projection).
>
> Yours
>
> Dirk
>
>
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