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» Natural gradients for deformable registration
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EMMCVPR
2003
Springer
13 years 10 months ago
Curvature Vector Flow to Assure Convergent Deformable Models for Shape Modelling
Poor convergence to concave shapes is a main limitation of snakes as a standard segmentation and shape modelling technique. The gradient of the external energy of the snake represe...
Debora Gil, Petia Radeva
EMMCVPR
2005
Springer
13 years 10 months ago
One-Shot Integral Invariant Shape Priors for Variational Segmentation
Abstract. We match shapes, even under severe deformations, via a smooth reparametrization of their integral invariant signatures. These robust signatures and correspondences are th...
Siddharth Manay, Daniel Cremers, Anthony J. Yezzi,...
MICCAI
2007
Springer
14 years 6 months ago
Ultrasound Myocardial Elastography and Registered 3D Tagged MRI: Quantitative Strain Comparison
Ultrasound Myocardial Elastography (UME) and Tagged Magnetic Resonance Imaging (tMRI) are two imaging modalities that were developed in the recent years to quantitatively estimate ...
Zhen Qian, Wei-Ning Lee, Elisa E. Konofagou, Dimit...
IPMI
2001
Springer
14 years 6 months ago
Tracking Brain Deformations in Time-Sequences of 3D US Images
During a neurosurgical intervention, the brain tissues shift and warp. In order to keep an accurate positioning of the surgical instruments, one has to estimate this deformation f...
Xavier Pennec, Pascal Cachier, Nicholas Ayache
ICCV
2001
IEEE
14 years 7 months ago
Gradient Vector Flow Fast Geodesic Active Contours
This paper proposes a new front propagation flow for boundary extraction. The proposed framework is inspired by the geodesic active contour model and leads to a paradigm that is r...
Nikos Paragios, Olivier Mellina-Gottardo, Visvanat...