Image2point: 3d point-cloud understanding with 2d image pretrained models

C Xu, S Yang, T Galanti, B Wu, X Yue, B Zhai… - … on Computer Vision, 2022 - Springer
Abstract 3D point-clouds and 2D images are different visual representations of the physical
world. While human vision can understand both representations, computer vision models …

Point-bert: Pre-training 3d point cloud transformers with masked point modeling

X Yu, L Tang, Y Rao, T Huang… - Proceedings of the …, 2022 - openaccess.thecvf.com
We present Point-BERT, a novel paradigm for learning Transformers to generalize the
concept of BERT onto 3D point cloud. Following BERT, we devise a Masked Point Modeling …

Invariant training 2d-3d joint hard samples for few-shot point cloud recognition

X Yi, J Deng, Q Sun, XS Hua… - Proceedings of the …, 2023 - openaccess.thecvf.com
We tackle the data scarcity challenge in few-shot point cloud recognition of 3D objects by
using a joint prediction from a conventional 3D model and a well-pretrained 2D model …

Pointcloud saliency maps

T Zheng, C Chen, J Yuan, B Li… - Proceedings of the IEEE …, 2019 - openaccess.thecvf.com
Abstract 3D point-cloud recognition with PointNet and its variants has received remarkable
progress. A missing ingredient, however, is the ability to automatically evaluate point-wise …

Prototype adaption and projection for few-and zero-shot 3d point cloud semantic segmentation

S He, X Jiang, W Jiang, H Ding - IEEE Transactions on Image …, 2023 - ieeexplore.ieee.org
In this work, we address the challenging task of few-shot and zero-shot 3D point cloud
semantic segmentation. The success of few-shot semantic segmentation in 2D computer …

3dcontextnet: Kd tree guided hierarchical learning of point clouds using local and global contextual cues

W Zeng, T Gevers - Proceedings of the European …, 2018 - openaccess.thecvf.com
Classification and segmentation of 3D point clouds are important tasks in computer vision.
Because of the irregular nature of point clouds, most of the existing methods convert point …

Self-supervised few-shot learning on point clouds

C Sharma, M Kaul - Advances in Neural Information …, 2020 - proceedings.neurips.cc
The increased availability of massive point clouds coupled with their utility in a wide variety
of applications such as robotics, shape synthesis, and self-driving cars has attracted …

Clip2point: Transfer clip to point cloud classification with image-depth pre-training

T Huang, B Dong, Y Yang, X Huang… - Proceedings of the …, 2023 - openaccess.thecvf.com
Pre-training across 3D vision and language remains under development because of limited
training data. Recent works attempt to transfer vision-language (VL) pre-training methods to …

Masked autoencoders for point cloud self-supervised learning

Y Pang, W Wang, FEH Tay, W Liu, Y Tian… - European conference on …, 2022 - Springer
As a promising scheme of self-supervised learning, masked autoencoding has significantly
advanced natural language processing and computer vision. Inspired by this, we propose a …

Let images give you more: Point cloud cross-modal training for shape analysis

X Yan, H Zhan, C Zheng, J Gao… - Advances in Neural …, 2022 - proceedings.neurips.cc
Although recent point cloud analysis achieves impressive progress, the paradigm of
representation learning from single modality gradually meets its bottleneck. In this work, we …