Constraints on deformable models: recovering 3D shape and nongrid motion
Artificial Intelligence
Multiresolution elastic matching
Computer Vision, Graphics, and Image Processing
Dynamic 3D Models with Local and Global Deformations: Deformable Superquadrics
IEEE Transactions on Pattern Analysis and Machine Intelligence
Bending and stretching models for LV wall motion analysis from curves and surfaces
Image and Vision Computing - Special issue: information processing in medical imaging 1991
Vibration modes for nonrigid motion analysis in 3D images
ECCV '94 Proceedings of the third European conference on Computer vision (vol. 1)
Using partial derivatives of 3D images to extract typical surface features
Computer Vision and Image Understanding
Finite Element Method for Elliptic Problems
Finite Element Method for Elliptic Problems
Finite-Element Methods for Active Contour Models and Balloons for 2-D and 3-D Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
CVRMed '95 Proceedings of the First International Conference on Computer Vision, Virtual Reality and Robotics in Medicine
Local Quantitative Measurements for Cardiac Motion Analysis
ECCV '96 Proceedings of the 4th European Conference on Computer Vision-Volume II - Volume II
Superquadrics and Free-Form Deformations: A Global Model to Fit and Track 3D Medical Data
CVRMed '95 Proceedings of the First International Conference on Computer Vision, Virtual Reality and Robotics in Medicine
Dense Non-Rigid Motion Estimation in Sequences of 3D Images Using Differential Constraints
CVRMed '95 Proceedings of the First International Conference on Computer Vision, Virtual Reality and Robotics in Medicine
Simplification of Irregular Surface Meshes in 3D Medical Images
CVRMed '95 Proceedings of the First International Conference on Computer Vision, Virtual Reality and Robotics in Medicine
Tracking Points on Deformable Objects Using Curvature Information
ECCV '92 Proceedings of the Second European Conference on Computer Vision
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
Foetal Age and Weight Determination Using a Lateral Interaction Inspired Net
IWANN '01 Proceedings of the 6th International Work-Conference on Artificial and Natural Neural Networks: Bio-inspired Applications of Connectionism-Part II
Adaptive Grid Refinement Procedures for Efficient Optical Flow Computation
International Journal of Computer Vision
A method for densitometric analysis of moving object tracking in medical images
Machine Graphics & Vision International Journal
Recovery of myocardial kinematic function without the time history of external loads
EURASIP Journal on Advances in Signal Processing - Image processing and analysis in biomechanics
FIMH'05 Proceedings of the Third international conference on Functional Imaging and Modeling of the Heart
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We describe a new method for computing the displacement vector field in time sequences of2D or 3D images (4D data). The method is energy-minimizing on the space ofcorrespondence functions; the energy is split into twoterms, with one term matchingdifferential singularities in the images, and the other constraining the regularity of thefield. In order to reduce the computational timeof the motion estimation, we use an adaptive image mesh, the resolution of which depends onthe value of the gradient intensity. We solve numerically theminimization problem with thefinite element method which gives a continuous approximation of the solution. We presentexperimental results on synthetic data and on medical images and we show how to use these results for analyzing cardiac deformations.