The user delineates approximately
the initial locations in a selected frame and specifies
the depth ordering of the
objects to be tracked.
A first motion-based segmentation is then obtained through an
initial application of a Region Growing algorithm. The partition map
is sequentially tracked from frame to frame using motion compensation
and location prediction.
Translational motion is assumed
for the moving objects, and local intensity or colour average might
be used as additional feature.
A post-processing procedure regularizes the
object boundaries over time.
The original sequences are the following MPEG-4 test sequences:
The extracted foreground layers are given in the following sequences:
- Coast Guard sequence, with medium
spatial details and low amount of movement
- Foreman sequence, with low
spatial details and medium amount of movement
Segmentation and tracking result on the
For further information please see the following publication:
I. Grinias and G. Tziritas,
Motion segmentation and tracking using a seeded region growing method,
European Signal Processing Conference, 1998.
Last Modification: November 8, 2000