OffsetOPT: Explicit Surface Reconstruction without Normals

Figure 1. We present OffsetOPT (Offset OPTimization) for explicit surface reconstruction from 3D point clouds, without the need for point normals. The prediction model is trained on synthetic meshes with supervision and then generalized to unseen point clouds through unsupervised optimization of per-point offsets. All surfaces in this figure are reconstructed using the same trained model with offset optimization. Our method achieves state-of-the-art performance in overall surface quality, sharp detail preservation, and scalability.