OT: fitting a plane model to 2d points 2003-12-03 - By pat hammond
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Hi,
I'm trying to create a simple version of the shadow garden idea
http://www.mine-control.com/ in director using the excellent
trackThemColors xtra to capture video from a webcam. To make collision
detection easier I'm trying to align a virtual camera in director to
match the webcam's view, therefore being able to translate the location
of objects I'm interested in from the scene's main camera to the
'virtual webcam' without relying on motion tracking.
My problem is calibrating the virtual web camera, simply, I have 4
points (corners of the projection screen), I need to convert this to a
3d plane without having any z-axis information but knowing the length of
the sides. This has been bugging me for days, if anyone has ideas I'd be
really thankful,
cheers,
Pat
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