Title: Active Blobs
Authors: Sclaroff, Stan and Isidoro, John
Date: April 30, 1997

Abstract:

Active blobs, a new region-based approach to nonrigid motion tracking is
described.  Active blobs employ a view-based representation; each
object is defined in terms of a deformable, active blob of color pixels.
Shape is defined in terms of a triangulated finite element model that
captures object shape <em>plus</em> a color texture map that captures
object appearance.  Active blobs also provide normalization with respect to
some photometric variations.  Nonrigid shape registration and motion
recovery is achieved by posing the problem as an energy-based, robust
minimization procedure. The active blob formulation is robust to
occlusions, shadows, and specular highlights.