Nikita Araslanov*

DiffCD: A Symmetric Differentiable Chamfer Distance for Neural Implicit Surface Fitting

"Neural implicit surfaces can be used to recover accurate 3D geometry from imperfect point clouds. In this work, we show that state-of-the-art techniques work by minimizing an approximation of a one-sided Chamfer distance. This shape metric is not symmetric, as it only ensures that the point cloud i…