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Posted by stn on April 27, 2008, 8:30 pm
Please log in for more thread options > stn wrote:
> > Does anyone know how to estimate yaw, roll pitch angles from extrinsic
> > camera parameters?
>
> Not much experience in the general case, but curious where the camera
> is and what its looking at. =A0More detail might give better answers.
>
> For example, when using overhead cameras, I've found a few brightly
> colored markers on each wheeled robot to be adequate. =A0I'd imagine a
> flying camera could make fair progress with a simple horizon detector.
> =A0 If you're looking at a plane, the traditional red/white/green
> navigation lights might be helpful.
>
> Once you've found a set of keypoints in the image, its then just
> linear algebra and optimization to find coordinate transforms which
> match...
>
> - Daniel
hi Daniel,
thanks for your suggestion,
it is very simple and general, assuming your camer looking down at
ground plane...
and assuming, you've got the extrinsic camera matrix...the Rotation +
translation coefficients...
Hence, from 3x3 matrix, can we know these parameters : yaw, roll pitch
angles?
so not to worry about what pattern to look at...
thanks
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> camera parameters?