Python point cloud registration

[Shannon Quinn]

Hi all,

I'm attempting to register videos by first computing points of interest at
each frame using mahotas.features.surf, and then aligning these points to
compute an affine transformation matrix. Does anyone know of any
Python-based point cloud registration implementations? OpenCV seems to have
a KDTree point cloud association but it appears to be buggy.

For context: I'm attempting to segment motion that is non-rigid around cell
bodies that are rigid; my strategy is to align the videos by the cells (to
compensate for spurious camera motion or even rigid cell motion).

Thanks!

Shannon