# Holo4D: Holistic 4D Reconstruction as Geometric Control for Video Diffusion > Source: > Published: 2026-10-30 11:30:04+00:00 Synthesizing a monocular video from a new camera trajectory requires preserving the observed scene geometry and motion while completing regions that become newly visible. Feed-forward 4D reconstructors recover the structure of the observed scene, whereas video diffusion models provide a generative p