EmerNERF aims to representing and reconstructing dynamic scenes (4D = 3D + time).

Features:

  • Decouples static and dynamic scene components
  • Estimates 3D scene flows, use them to aggregate temporally-displaced features

Method:

  • High-level: Builds a hybrid static-dynamic world representation via a density-regularized objective, generating density for dynamic objects only as necessary (i.e., when points intersect dynamic objects).