Conference proceeding
Mapping of hyperelastic deformable templates using the finite element method
Proceedings of SPIE, Vol.2573(1), pp.252-265
Vision Geometry IV
08/11/1995
DOI: 10.1117/12.216419
Abstract
In the current work we integrate well established techniques from finite deformation continuum mechanics with concepts from pattern recognition and image processing to develop a new finite element (FE) tool that combines image-based data with mechanics. Results track the deformation of material continua in the presence of unknown forces and/or material properties by using image-based data to provide the additional required information. The deformation field is determined from a variational problem that combines both the mechanics and models of the imaging sensors. A nonlinear FE approach is used to approximate the solution of the coupled problem. Results can be applied to (1) track the motion of deforming material and/or, (2) morphological warping of template images or patterns. 2D example results are provided for problems of the second type. One of the present examples was motivated primarily by a problem in medical imaging--mapping intersubject geometrical differences in human anatomical structures--with specific results given for the mapping 2D slices of the human distal femur based on X-ray computed tomographic images.
Details
- Title: Subtitle
- Mapping of hyperelastic deformable templates using the finite element method
- Creators
- Richard D Rabbitt - University of UtahJeffrey A Weiss - Lawrence Livermore National LaboratoryGary E Christensen - University of WashingtonMichael I Miller - University of Washington
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.2573(1), pp.252-265
- Conference
- Vision Geometry IV
- DOI
- 10.1117/12.216419
- ISSN
- 0277-786X
- eISSN
- 1996-756X
- Language
- English
- Date published
- 08/11/1995
- Academic Unit
- Holden Comprehensive Cancer Center; The Iowa Institute for Biomedical Imaging; Advanced Pulmonary Physiomic Imaging Laboratory; Electrical and Computer Engineering; Radiation Oncology; Radiation Research Laboratory
- Record Identifier
- 9984197520102771
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