Active Inference for Slow and Fast Interaction Loops in Holographic-Type Communication
Holographic-type communication requires a new hologram when the viewer moves beyond the display's angular viewing zone, whereas image-to-3D reconstruction takes tens of seconds per asset. We separate these operations into a slow loop that reconstructs a persistent mesh and a fast loop that renders each viewpoint from the stored mesh. The fast loop takes 0.117 s independently of camera motion, compared with 13.8-14.8 s for a full reconstruction. An active-inference controller determines when to begin reconstruction from learned user-state transitions, whether to perform a full or regional update, and how much computation to allocate based on a monocular-depth detail measure. Regional updates preserve geometry outside the edited area. In a modeled 100-event session, separating the loops reduces mean latency per event from 14.8 to 4.4 s (3.4-fold); predictive reconstruction reduces it further to 1.7-2.9 s, depending on user routine strength.