Re: 2D-3D point correspondence.


siraansa@xxxxxxxxx wrote:
> thanks for the information but before going to the pose estimation I
> want to map or do correspondence between the known object points and
> detected image points .. like which point on the image grid corresponds
> to object point on the planar pattern.
> this mapping hypothesis is very imaportant If I want to use the POSIT
> algorithm implemented in openCV library.
(that was my post before)
If you can see grayscale shape of the model in the image you can use
some kind of shape recognition algorithm (may be using Hopf transform).
If points are represened in the image as colored shapless blobs you can
probably use some kind of color-based filter to extract them. You may
want to check SIOX method from GIMP open-sourced graphic editor. Can't
help much here - I have some expirience only with predetrmined shape
extraction from grayscale.

.

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