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Point cloud completion aims to recover raw point clouds captured by scanners from partial observations caused by occlusion and limited view angles. This makes it hard to recover details because the global feature is unlikely to capture the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Songxue Gao , Chuanqi Jiao , Ruidong Chen , Weijie Wang , Weizhi Nie

The latest trends in the research field of single-view human reconstruction devote to learning deep implicit functions constrained by explicit body shape priors. Despite the remarkable performance improvements compared with traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yingzhi Tang , Qijian Zhang , Junhui Hou , Yebin Liu

Recent advances in implicit neural representations have achieved impressive results by sampling and fusing individual points along sampling rays in the sampling space. However, due to the explosively growing sampling space, finely…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Yuhan Ding , Fukun Yin , Jiayuan Fan , Hui Li , Xin Chen , Wen Liu , Chongshan Lu , Gang YU , Tao Chen

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 supervision. However, normal supervision in benchmarks comes…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Qing Li , Huifang Feng , Kanle Shi , Yue Gao , Yi Fang , Yu-Shen Liu , Zhizhong Han

In this paper, we propose an effective point cloud generation method, which can generate multi-resolution point clouds of the same shape from a latent vector. Specifically, we develop a novel progressive deconvolution network with the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Le Hui , Rui Xu , Jin Xie , Jianjun Qian , Jian Yang

Learning and analyzing 3D point clouds with deep networks is challenging due to the sparseness and irregularity of the data. In this paper, we present a data-driven point cloud upsampling technique. The key idea is to learn multi-level…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Lequan Yu , Xianzhi Li , Chi-Wing Fu , Daniel Cohen-Or , Pheng-Ann Heng

Masked autoencoding has achieved great success for self-supervised learning in the image and language domains. However, mask based pretraining has yet to show benefits for point cloud understanding, likely due to standard backbones like…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Haotian Liu , Mu Cai , Yong Jae Lee

While recent advancements in deep-learning point cloud upsampling methods have improved the input to intelligent transportation systems, they still suffer from issues of domain dependency between synthetic and real-scanned point clouds.…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Sangwon Lim , Karim El-Basyouny , Yee Hong Yang

Learning to generate 3D point clouds without 3D supervision is an important but challenging problem. Current solutions leverage various differentiable renderers to project the generated 3D point clouds onto a 2D image plane, and train deep…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Chen Chao , Zhizhong Han , Yu-Shen Liu , Matthias Zwicker

Lossy compression relies on an autoencoder to transform a point cloud into latent points for storage, leaving the inherent redundancy of latent representations unexplored. To reduce redundancy in latent points, we propose a diffusion-based…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Xiaoge Zhang , Zijie Wu , Mehwish Nasim , Mingtao Feng , Saeed Anwar , Ajmal Mian

Estimating normals for noisy point clouds is a persistent challenge in 3D geometry processing, particularly for end-to-end oriented normal estimation. Existing methods generally address relatively clean data and rely on supervised priors to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Qing Li , Huifang Feng , Xun Gong , Yu-Shen Liu

Reconstructing 3D geometry from \emph{unoriented} point clouds can benefit many downstream tasks. Recent shape modeling methods mostly adopt implicit neural representation to fit a signed distance field (SDF) and optimize the network by…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Runsong Zhu , Di Kang , Ka-Hei Hui , Yue Qian , Xuefei Zhe , Zhen Dong , Linchao Bao , Pheng-Ann Heng , Chi-Wing Fu

Point cloud is a crucial representation of 3D contents, which has been widely used in many areas such as virtual reality, mixed reality, autonomous driving, etc. With the boost of the number of points in the data, how to efficiently…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Kang You , Pan Gao , Qing Li

In recent years, zero-shot learning has attracted the focus of many researchers, due to its flexibility and generality. Many approaches have been proposed to achieve the zero-shot classification of the point clouds for 3D object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Jiayi Han , Zidi Cao , Weibo Zheng , Xiangguo Zhou , Xiangjian He , Yuanfang Zhang , Daisen Wei

We present an efficient and automatic approach for accurate reconstruction of instances of big 3D objects from multiple, unorganized and unstructured point clouds, in presence of dynamic clutter and occlusions. In contrast to conventional…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Tolga Birdal , Slobodan Ilic

Estimation of differential geometric quantities in discrete 3D data representations is one of the crucial steps in the geometry processing pipeline. Specifically, estimating normals and sharp feature lines from raw point cloud helps improve…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Albert Matveev , Alexey Artemov , Denis Zorin , Evgeny Burnaev

Point cloud is an important type of 3D representation. However, directly applying convolutions on point clouds is challenging due to the sparse, irregular and unordered data structure. In this paper, we propose a novel Interpolated…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Jiageng Mao , Xiaogang Wang , Hongsheng Li

This paper introduces a novel method for reconstructing meshes from sparse point clouds by predicting edge connection. Existing implicit methods usually produce superior smooth and watertight meshes due to the isosurface extraction…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Weimin Wang , Yingxu Deng , Zezeng Li , Yu Liu , Na Lei

We propose a deep autoencoder with graph topology inference and filtering to achieve compact representations of unorganized 3D point clouds in an unsupervised manner. Many previous works discretize 3D points to voxels and then use…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Siheng Chen , Chaojing Duan , Yaoqing Yang , Duanshun Li , Chen Feng , Dong Tian

We propose a new strategy to bridge point cloud denoising and surface reconstruction by alternately updating the denoised point clouds and the reconstructed surfaces. In Poisson surface reconstruction, the implicit function is generated by…

Graphics · Computer Science 2023-08-25 Dong Xiao , Zuoqiang Shi , Bin Wang