TTSA3R: Training-Free Temporal-Spatial Adaptive Persistent State for Streaming 3D Reconstruction
TTSA3R addresses catastrophic forgetting in streaming 3D reconstruction by introducing a training-free framework that uses adaptive state updates based on both temporal evolution and spatial observation quality. It combines a Temporal Adaptive Update Module to track state changes over time and a Spatial Context Update Module to localize necessary updates spatially. This dual-signal approach ensures the model maintains long-term consistency without forgetting old information.