“…Authors have based their models on different geometric and physical representations, including spring-mass models (Nastar and Ayache, 1996), triangle-based finite element models (Park et al, 1996;McInerney and Terzopoulos, 1995), simplex meshes (Montagnat et al, 1999;Gérard et al, 2002), tetrahedral finite element models (Pham et al, 2001;Sermesant et al, 2002;Papademetris et al, 2001), level sets (Charnoz et al, 2003;Paragios, 2002;Lin et al, 2002), 3D B-Spline deformation fields (Bardinet et al, 1996;Chandrashekara et al, 2003) and statistical shape and appearance models (Frangi et al, 2002;Ü zü mcü et al, 2003).…”