Iterativepfn: True iterative point cloud filtering

D de Silva Edirimuni, X Lu, Z Shao… - Proceedings of the …, 2023 - openaccess.thecvf.com
The quality of point clouds is often limited by noise introduced during their capture process.
Consequently, a fundamental 3D vision task is the removal of noise, known as point cloud …

SHS-Net: Learning signed hyper surfaces for oriented normal estimation of point clouds

Q Li, H Feng, K Shi, Y Gao, Y Fang… - Proceedings of the …, 2023 - openaccess.thecvf.com
We propose a novel method called SHS-Net for oriented normal estimation of point clouds
by learning signed hyper surfaces, which can accurately predict normals with global …

HSurf-Net: Normal estimation for 3D point clouds by learning hyper surfaces

Q Li, YS Liu, JS Cheng, C Wang… - Advances in Neural …, 2022 - proceedings.neurips.cc
We propose a novel normal estimation method called HSurf-Net, which can accurately
predict normals from point clouds with noise and density variations. Previous methods focus …

Fast learning of signed distance functions from noisy point clouds via noise to noise map**

J Zhou, B Ma, YS Liu - IEEE transactions on pattern analysis …, 2024 - ieeexplore.ieee.org
Learning signed distance functions (SDFs) from point clouds is an important task in 3D
computer vision. However, without ground truth signed distances, point normals or clean …

Rethinking the approximation error in 3d surface fitting for point cloud normal estimation

H Du, X Yan, J Wang, D **e… - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Most existing approaches for point cloud normal estimation aim to locally fit a geometric
surface and calculate the normal from the fitted surface. Recently, learning-based methods …

Extracting 3-D structural lines of building from ALS point clouds using graph neural network embedded with corner information

T Jiang, Y Wang, Z Zhang, S Liu, L Dai… - … on Geoscience and …, 2023 - ieeexplore.ieee.org
The representation quantifies the geometric shape and topology of a building is a necessary
procedure for many urban planning applications. A sharp line framework is a high-level …

NeuralGF: Unsupervised point normal estimation by learning neural gradient function

Q Li, H Feng, K Shi, Y Gao, Y Fang… - Advances in Neural …, 2023 - proceedings.neurips.cc
Normal estimation for 3D point clouds is a fundamental task in 3D geometry processing. The
state-of-the-art methods rely on priors of fitting local surfaces learned from normal …

Graphfit: Learning multi-scale graph-convolutional representation for point cloud normal estimation

K Li, M Zhao, H Wu, DM Yan, Z Shen, FY Wang… - … on Computer Vision, 2022 - Springer
We propose a precise and efficient normal estimation method that can deal with noise and
nonuniform density for unstructured 3D point clouds. Unlike existing approaches that directly …