arxivcs.CV2026-07-02
RayTun3R: Online Camera Adaptation in 3D Foundation Models
Daniil Sinitsyn, Nikita Araslanov, Daniel Cremers
Recent 3D foundation models, such as DUSt3R, MASt3R, VGGT, $π^3$, and Depth Anything 3, provide strong feed-forward depth and pose estimates on pinhole imagery, but degrade sharply under fisheye camera geometry. We show that this failure is partly caused by a pinhole camera bias…