83fa5a432ae55c253d0e60dbfa716723-Paper.pdf

Research efforts on learning implicit 3D shapes without 3D supervision have primarily resorted to binary occupancy[26,34]asthe representation, aiming tomatch reprojected 3D occupancytothe given binary masks. Current worksadopting signed distance functions (SDF) either require apretrained deep shape prior [27] or are limited to discretized representations [14] that do not scale up with resolution.