Digital geometry processing for shapes in motion
Dressed 3D humans in motion
Given a motion sequence of a human in wide clothing, we estimate its body shape using a learning approach. We then use this estimation to robustly track the 3D shape over time.
|Context:||Jinlong Yang's PhD thesis and ACHMOV project.|
|Co-workers:||Jinlong Yang (PhD student), Jean-Sébastien Franco (assistant professor, Univ. Grenoble), Stefanie Wuhrer (researcher, Inria).|
|More details:||Dressed Human data set, [ECCV'16], [3DV'16].|
Laplacian mesh sequence processing
We have developed a discrete Laplace operator for temporally coherent mesh sequences. This operator has then been used to various mesh sequence processing tasks, such as editing.
|Context:||MORPHO project then Sandeep Manandhar's Master thesis.|
|Co-workers:||Victoria Fernández Abrevaya (Master intern), Sandeep Manandhar (Master student), Stefanie Wuhrer (researcher, Inria).|
|More details:||[RR'12], [SMI'16], 3DtLaplace software.|
Segmentation of mesh sequences
In this project we focus on motion-based segmentation on mesh sequences. Contrary to previous works, we do not restrict to temporally coherent sequences: we deal with any mesh animation. We are able to segment a sequence according to either rigid or uniformly stretched motions.
|Context:||Romain Arcila's PhD thesis and MADRAS project.|
|Co-workers:||Romain Arcila (PhD student), Florent Dupont (professor, Univ. Lyon).|
|More details:||MADRAS website, [CORESA'09], [WSCG'10], [GMod'13].|
Manifold-oriented character skinning
We proposed a new skinning framework inspired from the mathematical concept of atlas of charts: we segment a 3D model of a character into overlapping parts, each of them being anatomically meaningful (e.g., a region for each arm, for each leg, etc., with overlaps on joints); then during deformation, each vertex in an overlapping area is updated thanks to the movement of neighboring bones.
|Co-workers:||Lin Lu (visiting PhD student, Univ. Hong Kong), Cédric Gérot (assistant professor, Univ. Grenoble), Boris Thibert (assistant professor, Univ. Grenoble).|
Automatic animation skeleton computation
We proposed an algorithm to automatically compute an animation skeleton, starting from a surface mesh and a few points selected by hand on the model. This considerably simplifies infographists' work, although our algorithm let them interact in various ways, if they want to.
|Context:||Grégoire Aujay's Master thesis.|
|Co-workers:||Grégoire Aujay (Master student), Francis Lazarus (researcher, CNRS), Christine Depraz (infographist).|
|More details:||[SCA'07], animation skeleton gallery.|