Voxurf: Voxel-based Efficient and Accurate Neural Surface Reconstruction. (arXiv:2208.12697v3 [cs.CV] UPDATED)

Neural surface reconstruction aims to reconstruct accurate 3D surfaces based
on multi-view images. Previous methods based on neural volume rendering mostly
train a fully implicit model with MLPs, which typically require hours of
training for a single scene. Recent efforts explore the explicit volumetric
representation to accelerate the optimization via memorizing significant
information with learnable voxel grids. However, existing voxel-based methods
often struggle in reconstructing fine-grained geometry, even when combined with
an SDF-based volume rendering scheme. We reveal that this …

arxiv voxel