Search Results for author: Guofeng Mei

Found 14 papers, 6 papers with code

Zero-Shot Point Cloud Registration

no code implementations5 Dec 2023 Weijie Wang, Guofeng Mei, Bin Ren, Xiaoshui Huang, Fabio Poiesi, Luc van Gool, Nicu Sebe, Bruno Lepri

The cornerstone of ZeroReg is the novel transfer of image features from keypoints to the point cloud, enriched by aggregating information from 3D geometric neighborhoods.

Point Cloud Registration

Point Cloud Pre-training with Diffusion Models

no code implementations25 Nov 2023 Xiao Zheng, Xiaoshui Huang, Guofeng Mei, Yuenan Hou, Zhaoyang Lyu, Bo Dai, Wanli Ouyang, Yongshun Gong

This generator aggregates the features extracted by the backbone and employs them as the condition to guide the point-to-point recovery from the noisy point cloud, thereby assisting the backbone in capturing both local and global geometric priors as well as the global point density distribution of the object.

Point Cloud Pre-training

Attentive Multimodal Fusion for Optical and Scene Flow

1 code implementation28 Jul 2023 Youjie Zhou, Guofeng Mei, Yiming Wang, Fabio Poiesi, Yi Wan

This paper presents an investigation into the estimation of optical and scene flow using RGBD information in scenarios where the RGB modality is affected by noise or captured in dark environments.

Cross-source Point Cloud Registration: Challenges, Progress and Prospects

no code implementations23 May 2023 Xiaoshui Huang, Guofeng Mei, Jian Zhang

The emerging topic of cross-source point cloud (CSPC) registration has attracted increasing attention with the fast development background of 3D sensor technologies.

Point Cloud Registration

Overlap-guided Gaussian Mixture Models for Point Cloud Registration

1 code implementation17 Oct 2022 Guofeng Mei, Fabio Poiesi, Cristiano Saltori, Jian Zhang, Elisa Ricci, Nicu Sebe

Probabilistic 3D point cloud registration methods have shown competitive performance in overcoming noise, outliers, and density variations.

Point Cloud Registration

Data Augmentation-free Unsupervised Learning for 3D Point Cloud Understanding

1 code implementation6 Oct 2022 Guofeng Mei, Cristiano Saltori, Fabio Poiesi, Jian Zhang, Elisa Ricci, Nicu Sebe, Qiang Wu

Unsupervised learning on 3D point clouds has undergone a rapid evolution, especially thanks to data augmentation-based contrastive methods.

3D Object Classification Contrastive Learning +3

Unsupervised Learning on 3D Point Clouds by Clustering and Contrasting

no code implementations5 Feb 2022 Guofeng Mei, Litao Yu, Qiang Wu, Jian Zhang, Mohammed Bennamoun

This paper proposes a general unsupervised approach, named \textbf{ConClu}, to perform the learning of point-wise and global features by jointly leveraging point-level clustering and instance-level contrasting.

3D Object Classification Clustering +2

COTReg:Coupled Optimal Transport based Point Cloud Registration

no code implementations29 Dec 2021 Guofeng Mei, Xiaoshui Huang, Litao Yu, Jian Zhang, Mohammed Bennamoun

Generating a set of high-quality correspondences or matches is one of the most critical steps in point cloud registration.

Point Cloud Registration

GenReg: Deep Generative Method for Fast Point Cloud Registration

no code implementations23 Nov 2021 Xiaoshui Huang, Zongyi Xu, Guofeng Mei, Sheng Li, Jian Zhang, Yifan Zuo, Yucheng Wang

To solve this challenge, we propose a new data-driven registration algorithm by investigating deep generative neural networks to point cloud registration.

Point Cloud Registration

A comprehensive survey on point cloud registration

no code implementations3 Mar 2021 Xiaoshui Huang, Guofeng Mei, Jian Zhang, Rana Abbas

This survey conducts a comprehensive survey, including both same-source and cross-source registration methods, and summarize the connections between optimization-based and deep learning methods, to provide further research insight.

3D Reconstruction Point Cloud Registration

Feature-metric Registration: A Fast Semi-supervised Approach for Robust Point Cloud Registration without Correspondences

1 code implementation CVPR 2020 Xiaoshui Huang, Guofeng Mei, Jian Zhang

We present a fast feature-metric point cloud registration framework, which enforces the optimisation of registration by minimising a feature-metric projection error without correspondences.

Point Cloud Registration

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