TY  - CONF
AU  - Petia Radeva
AU  - A.Amini
AU  - J.Huang
AU  - Enric Marti
A2  - MMBIA ’96
PY  - 1996//
TI  - Deformable B-Solids and Implicit Snakes for Localization and Tracking of SPAMM MRI-Data
BT  - Workshop on Mathematical Methods in Biomedical Image Analysis
SP  - 192
EP  - 201
PB  - IEEE Computer Society
N2  - To date, MRI-SPAMM data from different image slices have been analyzed independently. In this paper, we propose an approach for 3D tag localization and tracking of SPAMM data by a novel deformable B-solid. The solid is defined in terms of a 3D tensor product B-spline. The isoparametric curves of the B-spline solid have special importance. These are termed implicit snakes as they deform under image forces from tag lines in different image slices. The localization and tracking of tag lines is performed under constraints of continuity and smoothness of the B-solid. The framework unifies the problems of localization, and displacement fitting and interpolation into the same procedure utilizing B-spline bases for interpolation. To track motion from boundaries and restrict image forces to the myocardium, a volumetric model is employed as a pair of coupled endocardial and epicardial B-spline surfaces. To recover deformations in the LV an energy-minimization problem is posed where both tag and ...
SN  - 0-8186-7368-0
UR  - http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.42.8825
L1  - http://refbase.cvc.uab.es/files/RAH1996.pdf
UR  - http://dx.doi.org/10.1109/MMBIA.1996.534071
N1  - MILAB;IAM;
ID  - Petia Radeva1996
ER  -