NEF: Neural Edge Fields for 3D Parametric Curve Reconstruction from Multi-View Images

Ground Truth Parametric Curves 3D Edge Points … 2D Edge Detection Neural Edge Fields … Figure 1. We leverage 2D edge detection to directly acquire 3D edge points by learning a neural implicit field and further reconstructing 3D parametric curves that represent the geometrical shape of the object. We introduce the details about extracting 3D edges from the proposed Neural Edge Field in 3.1, and the coarse-to-fine optimization strategy to reconstruct parametric curves in 3.2. The whole pipeline is self-supervised with only 2D supervision.