Animated Mesh Approximation With Sphere-Meshes

Jean-Marc Thiery, Emilie Guy, Tamy Boubekeur, Elmar Eisemann

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)


Performance capture systems are used to acquire high-quality animated 3D
surfaces, usually in form of a dense 3D triangle mesh. Extracting a more
compact, yet faithful representation is often desirable, but existing solutions
for animated sequences are surface-based, which leads to a limited approximation
power in the case of extreme simplification. We introduce animated
sphere-meshes, which are meshes indexing a set of animated spheres. Our
solution is the first to output an animated volumetric structure to approximate
animated 3D surfaces and optimizes for the sphere approximation,
connectivity, and temporal coherence. As a result, our algorithm produces
a multi-resolution structure from which a level of simplification can be selected
in real-time, preserving a faithful approximation of the input, even at
the coarsest levels. We demonstrate the use of animated sphere-meshes for
low-cost approximate collision detection. Additionally, we propose a skinning
decomposition, which automatically rigs the input mesh to the chosen
level of detail. The resulting set of weights are smooth, compress the animation,
and enable easy edits.
Original languageEnglish
Article number30
Pages (from-to)1-13
Number of pages13
JournalACM Transactions on Graphics
Issue number3
Publication statusPublished - 2016


  • Animated shape approximation
  • abstraction
  • simplification

Fingerprint Dive into the research topics of 'Animated Mesh Approximation With Sphere-Meshes'. Together they form a unique fingerprint.

Cite this