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Recent open-vocabulary 3D scene understanding approaches mainly focus on training 3D networks through contrastive learning with point-text pairs or by distilling 2D features into 3D models via point-pixel alignment. While these methods show…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Xingyilang Yin , Jiale Wang , Xi Yang , Mutian Xu , Xu Gu , Nannan Wang

Structural health monitoring (SHM) is an essential engineering field aimed at ensuring the safety and reliability of civil infrastructures. This study proposes a methodology using multivariate variational mode decomposition (MVMD) for…

应用统计 · 统计学 2025-04-16 Lakhadive Mehulkumar R , Anshu Sharma , Basuraj Bhowmik

In this letter we investigate a tightly coupled Lidar-Inertia Odometry and Mapping (LIOM) scheme, with the capability to incorporate multiple lidars with complementary field of view (FOV). In essence, we devise a time-synchronized scheme to…

机器人学 · 计算机科学 2021-07-07 Thien-Minh Nguyen , Shenghai Yuan , Muqing Cao , Yang Lyu , Thien Hoang Nguyen , Lihua Xie

Multivariate Pattern (MVP) classification holds enormous potential for decoding visual stimuli in the human brain by employing task-based fMRI data sets. There is a wide range of challenges in the MVP techniques, i.e. decreasing noise and…

机器学习 · 统计学 2016-12-28 Muhammad Yousefnezhad , Daoqiang Zhang

We introduce multi-frequency vector diffusion maps (MFVDM), a new framework for organizing and analyzing high dimensional datasets. The new method is a mathematical and algorithmic generalization of vector diffusion maps (VDM) and other…

机器学习 · 计算机科学 2019-06-07 Yifeng Fan , Zhizhen Zhao

Rolling bearings are critical components in rotating machinery, and their faults can cause severe damage. Early detection of abnormalities is crucial to prevent catastrophic accidents. Traditional and intelligent methods have been used to…

计算机视觉与模式识别 · 计算机科学 2023-04-12 Weiyang Jin

Four-dimensional (4D) left ventricular myocardial velocity mapping (MVM) is a cardiac magnetic resonance (CMR) technique that allows assessment of cardiac motion in three orthogonal directions. Accurate and reproducible delineation of the…

图像与视频处理 · 电气工程与系统科学 2020-12-23 Yinzhe Wu , Suzan Hatipoglu , Diego Alonso-Álvarez , Peter Gatehouse , David Firmin , Jennifer Keegan , Guang Yang

Additive manufacturing, particularly fused deposition modeling, is transforming modern production by enabling rapid prototyping and complex part fabrication. However, its layer-by-layer process remains vulnerable to faults such as nozzle…

信号处理 · 电气工程与系统科学 2026-02-19 Muhammad Fasih Waheed , Shonda Bernadin , Ali Hassan

Rapid generation of large-scale orthoimages from Unmanned Aerial Vehicles (UAVs) has been a long-standing focus of research in the field of aerial mapping. A multi-sensor UAV system, integrating the Global Positioning System (GPS), Inertial…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Jialei He , Zhihao Zhan , Zhituo Tu , Xiang Zhu , Jie Yuan

In this work, we present a new technique for the decomposition of multivariate data, which we call Multivariate Fast Iterative Filtering (MvFIF) algorithm. We study its properties, proving rigorously that it converges in finite time when…

数值分析 · 数学 2021-11-04 Antonio Cicone , Enza Pellegrino

We present a real-time visual-inertial dense mapping method capable of performing incremental 3D mesh reconstruction with high quality using only sequential monocular images and inertial measurement unit (IMU) readings. 6-DoF camera poses…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Yingye Xin , Xingxing Zuo , Dongyue Lu , Stefan Leutenegger

Precise, seamless, and efficient train localization as well as long-term railway environment monitoring is the essential property towards reliability, availability, maintainability, and safety (RAMS) engineering for railroad systems.…

机器人学 · 计算机科学 2023-10-30 Yusheng Wang , Weiwei Song , Yi Zhang , Fei Huang , Zhiyong Tu , Ruoying Li , Shimin Zhang , Yidong Lou

Sparse and feature SLAM methods provide robust camera pose estimation. However, they often fail to capture the level of detail required for inspection and scene awareness tasks. Conversely, dense SLAM approaches generate richer scene…

机器人学 · 计算机科学 2025-05-16 Maaz Qureshi , Alexander Werner , Zhenan Liu , Amir Khajepour , George Shaker , William Melek

Reliable, drift-free global localization presents significant challenges yet remains crucial for autonomous navigation in large-scale dynamic environments. In this paper, we introduce a tightly-coupled Semantic-LiDAR-Inertial-Wheel Odometry…

机器人学 · 计算机科学 2025-09-19 Haoxuan Jiang , Peicong Qian , Yusen Xie , Linwei Zheng , Xiaocong Li , Ming Liu , Jun Ma

In this paper, we propose an algorithm for channel estimation, acquisition and tracking, for orthogonal frequency division multiplexing (OFDM) systems. The proposed algorithm is suitable for vehicular communications that encounter very high…

信息论 · 计算机科学 2016-02-03 Mahmoud Ashour , Amr El-Keyi

Dynamic mode decomposition (DMD) has emerged as a popular data-driven modeling approach to identifying spatio-temporal coherent structures in dynamical systems, owing to its strong relation with the Koopman operator. For dynamical systems…

信号处理 · 电气工程与系统科学 2021-10-26 Manu Krishnan , Serkan Gugercin , Pablo A. Tarazaga

Model order reduction (MOR) has long been a mainstream strategy to accelerate large-scale transient circuit simulation. Dynamic Mode Decomposition (DMD) represents a novel data-driven characterization method, extracting dominant dynamical…

信号处理 · 电气工程与系统科学 2025-08-06 Na Liu , Chengliang Dai , Qiuyue Wu , Qiuqi Li , Guoxiong Cai

Visual Odometry (VO) estimation is an important source of information for vehicle state estimation and autonomous driving. Recently, deep learning based approaches have begun to appear in the literature. However, in the context of driving,…

计算机视觉与模式识别 · 计算机科学 2021-12-28 Nimet Kaygusuz , Oscar Mendez , Richard Bowden

In this paper, we propose a tightly-coupled, multi-modal simultaneous localization and mapping (SLAM) framework, integrating an extensive set of sensors: IMU, cameras, multiple lidars, and Ultra-wideband (UWB) range measurements, hence…

机器人学 · 计算机科学 2021-10-06 Thien-Minh Nguyen , Shenghai Yuan , Muqing Cao , Thien Hoang Nguyen , Lihua Xie

In this work, we present Voxel-SLAM: a complete, accurate, and versatile LiDAR-inertial SLAM system that fully utilizes short-term, mid-term, long-term, and multi-map data associations to achieve real-time estimation and high precision…

机器人学 · 计算机科学 2024-10-14 Zheng Liu , Haotian Li , Chongjian Yuan , Xiyuan Liu , Jiarong Lin , Rundong Li , Chunran Zheng , Bingyang Zhou , Wenyi Liu , Fu Zhang