AVSplat: assist-view preconditioning fixes dense-view degradation in feed-forward 3DGS

zhenjun_zhao · x · 2026-09-11

AVSplat tackles a counterintuitive failure of pose-free feed-forward 3D Gaussian Splatting: more input views often degrade results as global attention dilutes and naive voxel fusion over-smooths. Each view first interacts lightly with a small set of relevance/diversity-chosen Assist Views, whose cached features stabilize correspondence; an adaptive temperature-aware voxel fusion sharpens attribution using occupancy and point confidence. Ablations show assist-view preconditioning prevents dense-view degradation, and AVSplat restores positive view scaling for novel view synthesis from uncalibrated multi-view images.

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