Neural fields in visual computing and beyond

Y Xie, T Takikawa, S Saito, O Litany… - Computer Graphics …, 2022 - Wiley Online Library
Recent advances in machine learning have led to increased interest in solving visual
computing problems using methods that employ coordinate‐based neural networks. These …

Spinnet: Learning a general surface descriptor for 3d point cloud registration

S Ao, Q Hu, B Yang, A Markham… - Proceedings of the …, 2021 - openaccess.thecvf.com
Extracting robust and general 3D local features is key to downstream tasks such as point
cloud registration and reconstruction. Existing learning-based local descriptors are either …

Canonical capsules: Self-supervised capsules in canonical pose

W Sun, A Tagliasacchi, B Deng… - Advances in …, 2021 - proceedings.neurips.cc
We propose a self-supervised capsule architecture for 3D point clouds. We compute capsule
decompositions of objects through permutation-equivariant attention, and self-supervise the …

Point cloud pre-training with natural 3d structures

R Yamada, H Kataoka, N Chiba… - Proceedings of the …, 2022 - openaccess.thecvf.com
The construction of 3D point cloud datasets requires a great deal of human effort. Therefore,
constructing a largescale 3D point clouds dataset is difficult. In order to remedy this issue …

A closer look at rotation-invariant deep point cloud analysis

F Li, K Fujiwara, F Okura… - Proceedings of the IEEE …, 2021 - openaccess.thecvf.com
We consider the deep point cloud analysis tasks where the inputs of the networks are
randomly rotated. Recent progress in rotation-invariant point cloud analysis is mainly driven …

Condor: Self-supervised canonicalization of 3d pose for partial shapes

R Sajnani, A Poulenard, J Jain, R Dua… - Proceedings of the …, 2022 - openaccess.thecvf.com
Progress in 3D object understanding has relied on manually" canonicalized" shape datasets
that contain instances with consistent position and orientation (3D pose). This has made it …

The devil is in the pose: Ambiguity-free 3d rotation-invariant learning via pose-aware convolution

R Chen, Y Cong - … of the IEEE/CVF Conference on …, 2022 - openaccess.thecvf.com
Recent progress in introducing rotation invariance (RI) to 3D deep learning methods is
mainly made by designing RI features to replace 3D coordinates as input. The key to this …

Localization with sampling-argmax

J Li, T Chen, R Shi, Y Lou, YL Li… - Advances in Neural …, 2021 - proceedings.neurips.cc
Soft-argmax operation is commonly adopted in detection-based methods to localize the
target position in a differentiable manner. However, training the neural network with soft …

Canonical fields: Self-supervised learning of pose-canonicalized neural fields

R Agaram, S Dewan, R Sajnani… - Proceedings of the …, 2023 - openaccess.thecvf.com
Coordinate-based implicit neural networks, or neural fields, have emerged as useful
representations of shape and appearance in 3D computer vision. Despite advances …

Self-distillation for unsupervised 3D domain adaptation

A Cardace, R Spezialetti, PZ Ramirez… - Proceedings of the …, 2023 - openaccess.thecvf.com
Point cloud classification is a popular task in 3D vision. However, previous works, usually
assume that point clouds at test time are obtained with the same procedure or sensor as …