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Prépublication · 2026 arXiv EN

Commutative Coarse-graining on the Sphere

Filtering by spatial convolution underlies coarse-graining and Large Eddy Simulation, the analysis of multiscale dynamics, and data processing across the sciences. Yet, as commonly practiced on the sphere, it violates a basic consistency requirement: commutati...

Chayut Teeraratkul, Hussein Aluie #physics.comp-ph
Prépublication · 2026 arXiv EN

Joints, Camera, Action! Co-Generating 3D Motion and Video for Arbitrary Rigs

Video generation models can now depict remarkably realistic motion. Yet it is unclear how to use this motion beyond pixels: to animate a specific 3D asset and replay the animation in its 3D scene. For instance, a video model can show a monkey jumping over a cr...

Noam Rotstein, Yoad Tewel et al. #cs.CV