Anat Levin Lior Wolf and
Amnon Shashua
School of Computer Science and Engineering,
T he
Hebrew University,
Jerusalem Israel
We derive single view indexing functions for dynamic scenes ---
where dynamic is defined as a scene consisting of multiply moving
points each moving independently with constant velocity. The indexing
functions we derive are view independent and form a generalization of
the ``shape tensors'' associated with rigid scenes by introducing a
time-varying
parameter. We derive those indexing
functions under full 3D projective, 3D affine, and various reduced
configurations.
The indexing functions were implemented and tested for matching
against objects for which their non-rigid motion is an intrinsic part
of their character --- human gait recognition and hand gesture
identification are the two chosen application examples.