  This paper introduces 3DFIRES, a novel system for scene-level 3D
reconstruction from posed images. Designed to work with as few as one view,
3DFIRES reconstructs the complete geometry of unseen scenes, including hidden
surfaces. With multiple view inputs, our method produces full reconstruction
within all camera frustums. A key feature of our approach is the fusion of
multi-view information at the feature level, enabling the production of
coherent and comprehensive 3D reconstruction. We train our system on
non-watertight scans from large-scale real scene dataset. We show it matches
the efficacy of single-view reconstruction methods with only one input and
surpasses existing techniques in both quantitative and qualitative measures for
sparse-view 3D reconstruction.
