3dshape2vecset: A 3d shape representation for neural fields and generative diffusion models

B Zhang, J Tang, M Niessner, P Wonka - ACM Transactions on Graphics …, 2023 - dl.acm.org
We introduce 3DShape2VecSet, a novel shape representation for neural fields designed for
generative diffusion models. Our shape representation can encode 3D shapes given as …

Neurbf: A neural fields representation with adaptive radial basis functions

Z Chen, Z Li, L Song, L Chen, J Yu… - Proceedings of the …, 2023 - openaccess.thecvf.com
We present a novel type of neural fields that uses general radial bases for signal
representation. State-of-the-art neural fields typically rely on grid-based representations for …

Learning consistency-aware unsigned distance functions progressively from raw point clouds

J Zhou, B Ma, YS Liu, Y Fang… - Advances in Neural …, 2022 - proceedings.neurips.cc
Surface reconstruction for point clouds is an important task in 3D computer vision. Most of
the latest methods resolve this problem by learning signed distance functions (SDF) from …

Towards better gradient consistency for neural signed distance functions via level set alignment

B Ma, J Zhou, YS Liu, Z Han - Proceedings of the IEEE/CVF …, 2023 - openaccess.thecvf.com
Neural signed distance functions (SDFs) have shown remarkable capability in representing
geometry with details. However, without signed distance supervision, it is still a challenge to …

3dilg: Irregular latent grids for 3d generative modeling

B Zhang, M Nießner, P Wonka - Advances in Neural …, 2022 - proceedings.neurips.cc
We propose a new representation for encoding 3D shapes as neural fields. The
representation is designed to be compatible with the transformer architecture and to benefit …

Reconstructing surfaces for sparse point clouds with on-surface priors

B Ma, YS Liu, Z Han - … of the IEEE/CVF Conference on …, 2022 - openaccess.thecvf.com
It is an important task to reconstruct surfaces from 3D point clouds. Current methods are able
to reconstruct surfaces by learning Signed Distance Functions (SDFs) from single point …

Neaf: Learning neural angle fields for point normal estimation

S Li, J Zhou, B Ma, YS Liu, Z Han - … of the AAAI conference on artificial …, 2023 - ojs.aaai.org
Normal estimation for unstructured point clouds is an important task in 3D computer vision.
Current methods achieve encouraging results by mapping local patches to normal vectors or …

Unsupervised inference of signed distance functions from single sparse point clouds without learning priors

C Chen, YS Liu, Z Han - … of the IEEE/CVF Conference on …, 2023 - openaccess.thecvf.com
It is vital to infer signed distance functions (SDFs) from 3D point clouds. The latest methods
rely on generalizing the priors learned from large scale supervision. However, the learned …

Gridpull: Towards scalability in learning implicit representations from 3d point clouds

C Chen, YS Liu, Z Han - Proceedings of the ieee/cvf …, 2023 - openaccess.thecvf.com
Learning implicit representations has been a widely used solution for surface reconstruction
from 3D point clouds. The latest methods infer a distance or occupancy field by overfitting a …

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 …