中文
相关论文

相关论文: Hyperbolic Chamfer Distance for Point Cloud Comple…

200 篇论文

In this paper, we propose a Point Fractal Network (PF-Net), a novel learning-based approach for precise and high-fidelity point cloud completion. Unlike existing point cloud completion networks, which generate the overall shape of the point…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Zitian Huang , Yikuan Yu , Jiawen Xu , Feng Ni , Xinyi Le

Recent advances in point cloud In-Context Learning (ICL) have demonstrated strong multitask capabilities. Existing approaches typically adopt a Masked Point Modeling (MPM)-based paradigm for point cloud ICL. However, MPM-based methods…

计算机视觉与模式识别 · 计算机科学 2026-04-06 Chengxing Lin , Jinhong Deng , Yinjie Lei , Wen Li

Hyperbolic representation learning has been widely used to extract implicit hierarchies within data, and recently it has found its way to the open-world classification task of Generalized Category Discovery (GCD). However, prior hyperbolic…

机器学习 · 计算机科学 2026-02-06 Mohamad Dalal , Thomas B. Moeslund , Joakim Bruslund Haurum

Robust generalization beyond training distributions remains a critical challenge for deep neural networks. This is especially pronounced in medical image analysis, where data is often scarce and covariate shifts arise from different…

计算机视觉与模式识别 · 计算机科学 2026-02-04 Francesco Di Salvo , Sebastian Doerrich , Jonas Alle , Christian Ledig

Single-cell omics enable the profiles of cells, which contain large numbers of biological features, to be quantified. Cluster analysis, a dimensionality reduction process, is used to reduce the dimensions of the data to make it…

基因组学 · 定量生物学 2024-06-06 Okezue Bell , Arthur Lee , Elizabeth Engle

Clustering, as an unsupervised technique, plays a pivotal role in various data analysis applications. Among clustering algorithms, Spectral Clustering on Euclidean Spaces has been extensively studied. However, with the rapid evolution of…

机器学习 · 计算机科学 2024-12-09 Sagar Ghosh , Swagatam Das

In this paper, we introduce a novel approach that harnesses both 2D and 3D attentions to enable highly accurate depth completion without requiring iterative spatial propagations. Specifically, we first enhance a baseline convolutional depth…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Yunxiao Shi , Manish Kumar Singh , Hong Cai , Fatih Porikli

Machine learning has been successfully applied in varied field but whether it is a viable tool for determining the distance to molecular clouds in the Galaxy is an open question. In the Galaxy, the kinematic distance is commonly employed as…

This work proposes a method for depth completion of sparse LiDAR data using a convolutional neural network which can be used to generate semi-dense depth maps and "almost" full 3D point-clouds with significantly lower root mean squared…

计算机视觉与模式识别 · 计算机科学 2019-09-23 Hamid Hekmatian , Jingfu Jin , Samir Al-Stouhi

In autonomous vehicles or robots, point clouds from LiDAR can provide accurate depth information of objects compared with 2D images, but they also suffer a large volume of data, which is inconvenient for data storage or transmission. In…

机器人学 · 计算机科学 2021-09-17 Sukai Wang , Jianhao Jiao , Peide Cai , Ming Liu

Point clouds (PCs) are a powerful 3D visual representation paradigm for many emerging application domains, especially virtual and augmented reality, and autonomous vehicles. However, the large amount of PC data required for highly immersive…

多媒体 · 计算机科学 2022-03-22 Alireza Javaheri , Catarina Brites , Fernando Pereira , João Ascenso

Matching cross-modality features between images and point clouds is a fundamental problem for image-to-point cloud registration. However, due to the modality difference between images and points, it is difficult to learn robust and…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Haiping Wang , Yuan Liu , Bing Wang , Yujing Sun , Zhen Dong , Wenping Wang , Bisheng Yang

Change detection (CD) methods have been applied to optical data for decades, while the use of hyperspectral data with a fine spectral resolution has been rarely explored. CD is applied in several sectors, such as environmental monitoring…

计算机视觉与模式识别 · 计算机科学 2023-11-08 J. F. Amieva , A. Austoni , M. A. Brovelli , L. Ansalone , P. Naylor , F. Serva , B. Le Saux

Reliable quality assessment of decoded point cloud geometry is essential to evaluate the compression performance of emerging point cloud coding solutions and guarantee some target quality of experience. This paper proposes a novel point…

图像与视频处理 · 电气工程与系统科学 2020-06-30 Alireza Javaheri , Catarina Brites , Fernando Pereira , Joao Ascenso

As multipath components (MPCs) are experimentally observed to appear in clusters, cluster-based channel models have been focused in the wireless channel study. However, most of the MPC clustering algorithms for MIMO channels with delay and…

信息论 · 计算机科学 2022-06-29 Yi Chen , Chong Han , Jia He , Guangjian Wang

In recent years, 3D point clouds (PCs) have gained significant attention due to their diverse applications across various fields, such as computer vision (CV), condition monitoring (CM), virtual reality, robotics, autonomous driving, etc.…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Anju Rani , Daniel Ortiz-Arroyo , Petar Durdevic

The crucial step for localization is to match the current observation to the map. When the two sensor modalities are significantly different, matching becomes challenging. In this paper, we present an end-to-end deep phase correlation…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Zexi Chen , Xuecheng Xu , Yue Wang , Rong Xiong

Contemporary color difference (CD) measures for photographic images typically operate by comparing co-located pixels, patches in a ``perceptually uniform'' color space, or features in a learned latent space. Consequently, these measures…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Jiaqi He , Zhihua Wang , Leon Wang , Tsein-I Liu , Yuming Fang , Qilin Sun , Kede Ma

Point cloud completion is essential for robotic perception, object reconstruction and supporting downstream tasks like grasp planning, obstacle avoidance, and manipulation. However, incomplete geometry caused by self-occlusion and sensor…

机器人学 · 计算机科学 2025-09-18 Yadan Zeng , Jiadong Zhou , Xiaohan Li , I-Ming Chen

For the interpretation of spectra of magnetic stellar objects such as magnetic white dwarfs (WDs) highly accurate quantum chemical predictions for atoms and molecules in finite magnetic field are required. Especially the accurate…

化学物理 · 物理学 2024-10-01 Simon Blaschke , Marios-Petros Kitsaras , Stella Stopkowicz