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Mesh reconstruction from a 3D point cloud is an important topic in the fields of computer graphic, computer vision, and multimedia analysis. In this paper, we propose a voxel structure-based mesh reconstruction framework. It provides the…

Graphics · Computer Science 2021-04-26 Chenlei Lv , Weisi Lin , Baoquan Zhao

Current LiDAR point cloud-based 3D single object tracking (SOT) methods typically rely on point-based representation network. Despite demonstrated success, such networks suffer from some fundamental problems: 1) It contains pooling…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Yuxuan Lu , Jiahao Nie , Zhiwei He , Hongjie Gu , Xudong Lv

In recent years 3D object detection from LiDAR point clouds has made great progress thanks to the development of deep learning technologies. Although voxel or point based methods are popular in 3D object detection, they usually involve…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Jiaqi Gu , Zhiyu Xiang , Pan Zhao , Tingming Bai , Lingxuan Wang , Xijun Zhao , Zhiyuan Zhang

In this paper, we propose a novel network, SVDFormer, to tackle two specific challenges in point cloud completion: understanding faithful global shapes from incomplete point clouds and generating high-accuracy local structures. Current…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Zhe Zhu , Honghua Chen , Xing He , Weiming Wang , Jing Qin , Mingqiang Wei

Existing state-of-the-art novel view synthesis methods rely on either fairly accurate 3D geometry estimation or sampling of the entire space for neural volumetric rendering, which limit the overall efficiency. In order to improve the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-08 Yuemei Zhou , Tao Yu , Zerong Zheng , Ying Fu , Yebin Liu

We propose a novel approach for 3D shape completion by synthesizing multi-view depth maps. While previous work for shape completion relies on volumetric representations, meshes, or point clouds, we propose to use multi-view depth maps from…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Tao Hu , Zhizhong Han , Abhinav Shrivastava , Matthias Zwicker

3D object detection is receiving increasing attention from both industry and academia thanks to its wide applications in various fields. In this paper, we propose Point-Voxel Region-based Convolution Neural Networks (PV-RCNNs) for 3D object…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Shaoshuai Shi , Li Jiang , Jiajun Deng , Zhe Wang , Chaoxu Guo , Jianping Shi , Xiaogang Wang , Hongsheng Li

Deep learning is providing a wealth of new approaches to the problem of novel view synthesis, from Neural Radiance Field (NeRF) based approaches to end-to-end style architectures. Each approach offers specific strengths but also comes with…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Bernard Spiegl , Andrea Perin , Stéphane Deny , Alexander Ilin

In recent years, point clouds have become increasingly popular for representing three-dimensional (3D) visual objects and scenes. To efficiently store and transmit point clouds, compression methods have been developed, but they often result…

Image and Video Processing · Electrical Eng. & Systems 2023-11-08 Jinrui Xing , Hui Yuan , Raouf Hamzaoui , Hao Liu , Junhui Hou

A unified neural network structure is presented for joint 3D object detection and point cloud segmentation in this paper. We leverage rich supervision from both detection and segmentation labels rather than using just one of them. In…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Yuanxin Zhong , Minghan Zhu , Huei Peng

We introduce Point-MVSNet, a novel point-based deep framework for multi-view stereo (MVS). Distinct from existing cost volume approaches, our method directly processes the target scene as point clouds. More specifically, our method predicts…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Rui Chen , Songfang Han , Jing Xu , Hao Su

Depth-image-based rendering is a key view synthesis algorithm in 3D video systems, which enables the synthesis of virtual views from texture images and depth maps. An efficient view synthesis distortion estimation model is critical for…

Image and Video Processing · Electrical Eng. & Systems 2025-10-21 Chongyuan Bi , Jie Liang

Existing networks directly learn feature representations on 3D point clouds for shape analysis. We argue that 3D point clouds are highly redundant and hold irregular (permutation-invariant) structure, which makes it difficult to achieve…

Machine Learning · Computer Science 2020-07-21 Sameera Ramasinghe , Salman Khan , Nick Barnes , Stephen Gould

We propose a Point-Voxel DeConvolution (PVDeConv) module for 3D data autoencoder. To demonstrate its efficiency we learn to synthesize high-resolution point clouds of 10k points that densely describe the underlying geometry of Computer…

Computer Vision and Pattern Recognition · Computer Science 2021-01-13 Kseniya Cherenkova , Djamila Aouada , Gleb Gusev

We address the problem of 3D object detection, that is, estimating 3D object bounding boxes from point clouds. 3D object detection methods exploit either voxel-based or point-based features to represent 3D objects in a scene. Voxel-based…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Jongyoun Noh , Sanghoon Lee , Bumsub Ham

Point cloud-based object/place recognition remains a problem of interest in applications such as autonomous driving, scene reconstruction, and localization. Extracting a meaningful global descriptor from a query point cloud that can be…

Robotics · Computer Science 2025-08-04 Anirban Ghosh , Iliya Kulbaka , Ian Dahlin , Ayan Dutta

Embodied intelligence requires agents to interact with 3D environments in real time based on language instructions. A foundational task in this domain is ego-centric 3D visual grounding. However, the point clouds rendered from RGB-D images…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Qihang Peng , Henry Zheng , Gao Huang

We revisit Semantic Scene Completion (SSC), a useful task to predict the semantic and occupancy representation of 3D scenes, in this paper. A number of methods for this task are always based on voxelized scene representations for keeping…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Xiaokang Chen , Jiaxiang Tang , Jingbo Wang , Gang Zeng

Dynamic reconstruction and spatiotemporal novel-view synthesis of non-rigidly deforming scenes recently gained increased attention. While existing work achieves impressive quality and performance on multi-view or teleporting camera setups,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-03 Moritz Kappel , Florian Hahlbohm , Timon Scholz , Susana Castillo , Christian Theobalt , Martin Eisemann , Vladislav Golyanik , Marcus Magnor

Synthesizing photo-realistic images and videos is at the heart of computer graphics and has been the focus of decades of research. Traditionally, synthetic images of a scene are generated using rendering algorithms such as rasterization or…