AI RESEARCH
GHOST: Geometry-Hierarchical Online Streaming Token Eviction for Efficient 3D Reconstruction
arXiv CS.CV
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ArXi:2605.15852v1 Announce Type: new Streaming 3D reconstruction from long monocular video sequences requires maintaining a key-value (KV) cache that grows linearly with sequence length, creating a severe memory bottleneck. Existing approaches either truncate the cache to a fixed set of anchor frames, leading to reconstruction quality degradation, or rely on attention-score heuristics that are agnostic to 3D scene structure, failing to preserve geometrically valuable tokens. To address these problems, we present GHOST (Geometry-Hierarchical Online Streaming Token Eviction), a.