Hi Andi,
On Fri, 2006-06-23 at 14:22 +0200, Andreas Brüning wrote:
>
> i want to combine OpenSG with OpenCV Functions in one programm. I have
> some 3d- Points from an OpenSG Scene and their 2d- Screenkoordinates.
> With the Posit Functions from OpenCV i want to calculate the
> Kameraposition. From Posit i get a rotation matrix and a translation
> vector, but i donŽt know what i have to do with that. Can somebody
> show me how to get the right transformationmatrix, which i can give to
> the OpenSG navigator? I know that the koordinate system in OpenCV is
> different to the koordinatesystem in OpenSG. I tried a lot, but i
> donŽt find an answer.
Sorry, never having used OpenCV I can't help with that. :(
Some things to remember: many image processing libs use pixel coords,
OpenSG uses the OpenGL (-1..1) convention and rotation is done before
translation for the CV libs I've seen.
But of top of that I don't know...
If you come up with a solution I would appreciate getting a simple
example program for using OpenSG and OpenCV together... ;)
Yours
Dirk
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