Hi4D: 4D Instance Segmentation of Close Human Interaction

Meshes with Contact Annotations (C) Instance Segmentation Masks in 2D and 3D (D) Parametric Body Models with Contact Annotations Figure 1. Method and dataset. We propose a method that leverages personalized human avatars to segment merged (A) 4D textured scans of multiple closely interacting humans. Based on the (B) instance meshes (with vertex-level contact annotations) we obtained in 3D space, we further provide (C) instance segmentation masks in 2D and 3D, (D) registered parametric body models with contact annotations.