SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Constraints on deformable models: recovering 3D shape and nongrid motion
Artificial Intelligence
Recovery of Nonrigid Motion and Structure
IEEE Transactions on Pattern Analysis and Machine Intelligence
Interval volume tetrahedrization
VIS '97 Proceedings of the 8th conference on Visualization '97
Tetrahedral mesh generation by Delaunay refinement
Proceedings of the fourteenth annual symposium on Computational geometry
Real-time and physically realistic simulation of global deformation
ACM SIGGRAPH 99 Conference abstracts and applications
As-rigid-as-possible shape interpolation
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation
Physically Based Models with Rigid and Deformable Components
IEEE Computer Graphics and Applications
Reconstruction of Animated Models from Images Using Constrained Deformable Surfaces
DGCI '02 Proceedings of the 10th International Conference on Discrete Geometry for Computer Imagery
Continuous capture of skin deformation
ACM SIGGRAPH 2003 Papers
Novel skeletal representation for articulated creatures
Novel skeletal representation for articulated creatures
Simplification and improvement of tetrahedral models for simulation
Proceedings of the 2004 Eurographics/ACM SIGGRAPH symposium on Geometry processing
Large mesh deformation using the volumetric graph Laplacian
ACM SIGGRAPH 2005 Papers
Element-Free Elastic Models for Volume Fitting and Capture
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2
Solid mesh registration for radiotherapy treatment planning
ISBMS'10 Proceedings of the 5th international conference on Biomedical Simulation
Fitting polynomial volumes to surface meshes with Voronoï squared distance minimization
SGP '13 Proceedings of the Eleventh Eurographics/ACMSIGGRAPH Symposium on Geometry Processing
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Computing correspondence between time frames of a time-dependent 3D surface is essential for the understanding of its motion and deformation. In particular, it can be a useful tool in compression, editing, texturing, or analysis of the physical or structural properties of deforming objects. However, correspondence information is not trivial to obtain for experimentally acquired 3D animations, such as time-dependent visual hulls (typically represented as either a binary occupancy grid or as a sequence of meshes of varying connectivity). In this article we present a new nonrigid fitting method that can compute such correspondence information for objects that do not undergo large volume or topological changes, such as living creatures. Experimental results show that it is robust enough to handle visual hull data, allowing to convert it into a constant connectivity mesh with vertices moving in time. Our procedure first creates a rest-state mesh from one of the input frames. This rest-state mesh is then fitted to the consecutive frames. We do this by iteratively displacing its vertices so that a combination of surface distance and elastic potential energy is minimized. A novel rotation compensation method enables us to obtain high-quality results with linear elasticity, even in presence of significant bending.