1 Q

Is it possible to make same changes in code, so my camera will tracking 
three corners like in triangle.


2 Q

Is it possible to work with some other colors like gray?  What change to the 
code I have to do for that?


My idea is to capture real world (pictures on the wall, window on the house, 
etc..) and put some arrows pointing to these objects.

Thanks

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Luka Kukulic wrote:

> Is it possible to make same changes in code, so my camera will
> tracking three corners like in triangle.

no, you need at least 4 coplanar points to do a pose estimation from a
single camera.

> Is it possible to work with some other colors like gray?  What change
> to the code I have to do for that?

yes, colored patterns are supported in artoolkit though i think nobody
uses this (see next answer).

> My idea is to capture real world (pictures on the wall, window on the
> house, etc..) and put some arrows pointing to these objects.

this should work, but you will have to make sure that your picture has a
*very* high contrast (that's why usually black/white patterns are used).
i don't know if anybody every really tried this...

Daniel