Deformable models with parameter functions: application toheart-wall modeling
Park, J.
Metaxas, D.
Young, A.
Dept. of Comput. & Inf. Sci., Pennsylvania Univ., Philadelphia, PA;
Abstract
This paper develops a new class of physics-based deformable models
which can deform both globally and locally. Their global parameters are
functions allowing the definition of new parameterized primitives and
parameterized global deformations. These new global parameter functions
improve the accuracy of shape description through the use of a few
intuitive parameters such as functional bending and twisting. Using a
physics-based approach we convert these geometric models into deformable
models that deform due to forces exerted from the data-points so as to
conform to the given dataset. We present an experiment involving the
extraction of shape and motion of the Left Ventricle (LV) of a heart
from MRI-SPAMM data based on a few global parameter functions
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