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Fast and accurate 3D shape generation from point clouds is essential for applications in robotics, AR/VR, and digital content creation. We introduce ConTiCoM-3D, a continuous-time consistency model that synthesizes 3D shapes directly in…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Sebastian Eilermann , René Heesch , Oliver Niggemann

Semantic segmentation of point clouds usually requires exhausting efforts of human annotations, hence it attracts wide attention to the challenging topic of learning from unlabeled or weaker forms of annotations. In this paper, we take the…

计算机视觉与模式识别 · 计算机科学 2024-01-03 Zisheng Chen , Hongbin Xu , Weitao Chen , Zhipeng Zhou , Haihong Xiao , Baigui Sun , Xuansong Xie , Wenxiong Kang

We present a method that detects boundaries of parts in 3D shapes represented as point clouds. Our method is based on a graph convolutional network architecture that outputs a probability for a point to lie in an area that separates two or…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Marios Loizou , Melinos Averkiou , Evangelos Kalogerakis

Over the last decade, the demand for better segmentation and classification algorithms in 3D spaces has significantly grown due to the popularity of new 3D sensor technologies and advancements in the field of robotics. Point-clouds are one…

计算机视觉与模式识别 · 计算机科学 2019-10-02 Felipe Gomez Marulanda , Pieter Libin , Timothy Verstraeten , Ann Nowé

Efficiently generating energetically stable crystal structures has long been a challenge in material design, primarily due to the immense arrangement of atoms in a crystal lattice. To facilitate the discovery of stable material, we present…

人工智能 · 计算机科学 2025-09-30 Zhelin Li , Rami Mrad , Runxian Jiao , Guan Huang , Jun Shan , Shibing Chu , Yuanping Chen

Point cloud learning has lately attracted increasing attention due to its wide applications in many areas, such as computer vision, autonomous driving, and robotics. As a dominating technique in AI, deep learning has been successfully used…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Yulan Guo , Hanyun Wang , Qingyong Hu , Hao Liu , Li Liu , Mohammed Bennamoun

3D LiDAR scanners are playing an increasingly important role in autonomous driving as they can generate depth information of the environment. However, creating large 3D LiDAR point cloud datasets with point-level labels requires a…

计算机视觉与模式识别 · 计算机科学 2018-04-03 Xiangyu Yue , Bichen Wu , Sanjit A. Seshia , Kurt Keutzer , Alberto L. Sangiovanni-Vincentelli

Instance segmentation is an important task for scene understanding. Compared to the fully-developed 2D, 3D instance segmentation for point clouds have much room to improve. In this paper, we present PointGroup, a new end-to-end bottom-up…

计算机视觉与模式识别 · 计算机科学 2020-04-06 Li Jiang , Hengshuang Zhao , Shaoshuai Shi , Shu Liu , Chi-Wing Fu , Jiaya Jia

3D Gaussian Splatting has demonstrated superior performance in rendering efficiency and quality, yet the generation of 3D Gaussians still remains a challenge without proper geometric priors. Existing methods have explored predicting point…

计算机视觉与模式识别 · 计算机科学 2026-04-08 Weiqi Zhang , Junsheng Zhou , Haotian Geng , Kanle Shi , Shenkun Xu , Yi Fang , Yu-Shen Liu

Scene flow is the three-dimensional (3D) motion field of a scene. It provides information about the spatial arrangement and rate of change of objects in dynamic environments. Current learning-based approaches seek to estimate the scene flow…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Jhony Kaesemodel Pontes , James Hays , Simon Lucey

Recently, image-to-3D approaches have significantly advanced the generation quality and speed of 3D assets based on large reconstruction models, particularly 3D Gaussian reconstruction models. Existing large 3D Gaussian models directly map…

计算机视觉与模式识别 · 计算机科学 2024-08-21 Longfei Lu , Huachen Gao , Tao Dai , Yaohua Zha , Zhi Hou , Junta Wu , Shu-Tao Xia

Current point cloud registration methods are mainly based on local geometric information and usually ignore the semantic information contained in the scenes. In this paper, we treat the point cloud registration problem as a semantic…

计算机视觉与模式识别 · 计算机科学 2023-10-19 Shaocong Liu , Tao Wang , Yan Zhang , Ruqin Zhou , Li Li , Chenguang Dai , Yongsheng Zhang , Longguang Wang , Hanyun Wang

In this paper, we propose one novel model for point cloud semantic segmentation, which exploits both the local and global structures within the point cloud based on the contextual point representations. Specifically, we enrich each point…

计算机视觉与模式识别 · 计算机科学 2019-11-14 Xu Wang , Jingming He , Lin Ma

In this paper, we introduce a reinforcement learning approach utilizing a novel topology-based information gain metric for directing the next best view of a noisy 3D sensor. The metric combines the disjoint sections of an observed surface…

机器人学 · 计算机科学 2021-03-23 Christopher Collander , William J. Beksi , Manfred Huber

Point cloud is a critical 3D representation with many emerging applications. Because of the point sparsity and irregularity, high-quality rendering of point clouds is challenging and often requires complex computations to recover the…

计算机视觉与模式识别 · 计算机科学 2024-09-26 Yueyu Hu , Ran Gong , Qi Sun , Yao Wang

Due to the difficulty in generating the effective descriptors which are robust to occlusion and viewpoint changes, place recognition for 3D point cloud remains an open issue. Unlike most of the existing methods that focus on extracting…

计算机视觉与模式识别 · 计算机科学 2020-08-27 Xin Kong , Xuemeng Yang , Guangyao Zhai , Xiangrui Zhao , Xianfang Zeng , Mengmeng Wang , Yong Liu , Wanlong Li , Feng Wen

Point clouds-based Networks have achieved great attention in 3D object classification, segmentation and indoor scene semantic parsing. In terms of face recognition, 3D face recognition method which directly consume point clouds as input is…

计算机视觉与模式识别 · 计算机科学 2019-11-25 Ziyu Zhang , Feipeng Da , Yi Yu

We introduce PointGauss, a novel point cloud-guided framework for real-time multi-object segmentation in Gaussian Splatting representations. Unlike existing methods that suffer from prolonged initialization and limited multi-view…

计算机视觉与模式识别 · 计算机科学 2025-08-04 Wentao Sun , Hanqing Xu , Quanyun Wu , Dedong Zhang , Yiping Chen , Lingfei Ma , John S. Zelek , Jonathan Li

We present a new deep point cloud rendering pipeline through multi-plane projections. The input to the network is the raw point cloud of a scene and the output are image or image sequences from a novel view or along a novel camera…

计算机视觉与模式识别 · 计算机科学 2020-06-26 Peng Dai , Yinda Zhang , Zhuwen Li , Shuaicheng Liu , Bing Zeng

Pseudo-LiDAR point cloud interpolation is a novel and challenging task in the field of autonomous driving, which aims to address the frequency mismatching problem between camera and LiDAR. Previous works represent the 3D spatial motion…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Haojie Liu , Kang Liao , Chunyu Lin , Yao Zhao , Yulan Guo