%0 Journal Article
	%A Renato Dedic and  Madjid Allili and  Roger Lecomte and  Adbelhamid Benchakroun
	%D 2008
	%J International Journal of Physical and Mathematical Sciences
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 17, 2008
	%T Segmentation of Cardiac Images by the Force Field Driven Speed Term
	%U https://publications.waset.org/pdf/9401
	%V 17
	%X The class of geometric deformable models, so-called
level sets, has brought tremendous impact to medical imagery. In
this paper we present yet another application of level sets to medical
imaging. The method we give here will in a way modify the speed
term in the standard level sets equation of motion. To do so we
build a potential based on the distance and the gradient of the
image we study. In turn the potential gives rise to the force field:
F~F(x, y) = P
∀(p,q)∈I
((x, y) - (p, q)) |ÔêçI(p,q)|
|(x,y)-(p,q)|
2 . The direction
and intensity of the force field at each point will determine the
direction of the contour-s evolution. The images we used to test
our method were produced by the Univesit'e de Sherbrooke-s PET
scanners.
	%P 307 - 311