Capturing and Anticipating 4D Dynamics

Speaker: Niloy J Mitra, Professor of Geometry Processing, Department of Computer Science, University College London (UCL)

Date: 23 July 2026

YouTube link: https://youtu.be/XleAPNoK6f8

In this talk, Niloy J Mitra described his group’s recent efforts in digitising, representing, and interacting with complex motion in 3D, using a mixture of neural representations and learned simulations. He introduced ActionMesh, an efficient feedforward model that transforms standard monocular videos into fully 4D animated meshes and also talked about how partial differential equations can be solved on neural (implicit) representations. He concluded with personal reflections based on his group’s attempts to unify capturing and editing of 4D motion towards predictive world models.