AI RESEARCH
Rheos: Modelling Continuous Motion Dynamics in Hierarchical 3D Scene Graphs
arXiv CS.CV
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ArXi:2603.20239v1 Announce Type: cross 3D Scene Graphs (3DSGs) provide hierarchical, multi-resolution abstractions that encode the geometric and semantic structure of an environment, yet their treatment of dynamics remains limited to tracking individual agents. Maps of Dynamics (MoDs) complement this by modeling aggregate motion patterns, but rely on uniform grid discretizations that lack semantic grounding and scale poorly.