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This paper proposes SOLVR, a unified pipeline for learning based LiDAR-Visual re-localisation which performs place recognition and 6-DoF registration across sensor modalities. We propose a strategy to align the input sensor modalities by…

计算机视觉与模式识别 · 计算机科学 2025-02-07 Joshua Knights , Sebastián Barbas Laina , Peyman Moghadam , Stefan Leutenegger

Localization is an important required task for enabling vehicle autonomy for underwater vehicles. Localization entails the determination of position of the center of mass and orientation of a vehicle from the available measurements. In this…

最优化与控制 · 数学 2019-07-03 Sai Krishna Kanth Hari , Kaarthik Sundar , Jose Braga , Joao Teixeira , Joao Sousa , Swaroop Darbha

3D object detection has become an emerging task in autonomous driving scenarios. Previous works process 3D point clouds using either projection-based or voxel-based models. However, both approaches contain some drawbacks. The voxel-based…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Qingdong He , Zhengning Wang , Hao Zeng , Yijun Liu , Shuaicheng Liu , Bing Zeng

Depth estimation is a cornerstone of a vast number of applications requiring 3D assessment of the environment, such as robotics, augmented reality, and autonomous driving to name a few. One prominent technique for depth estimation is stereo…

计算机视觉与模式识别 · 计算机科学 2021-12-16 Amit Bracha , Noam Rotstein , David Bensaïd , Ron Slossberg , Ron Kimmel

Non-extractive fish abundance estimation with the aid of visual analysis has drawn increasing attention. Unstable illumination, ubiquitous noise and low frame rate video capturing in the underwater environment, however, make conventional…

计算机视觉与模式识别 · 计算机科学 2015-04-16 Meng-Che Chuang , Jenq-Neng Hwang , Kresimir Williams , Richard Towler

SSP distribution is an important parameter for underwater positioning, navigation and timing (PNT) because it affects the propagation mode of underwater acoustic signals. To accurate predict future sound speed distribution, we propose a…

声音 · 计算机科学 2025-03-31 Jiajun Lu , Wei Huang , Hao Zhang

Positioning problem can be solved with several approaches in 5G. This paper introduces RT (Ray Tracing) technique for small-cell Outdoor positioning and tracking for systems with distributed architecture with multipath processing gain.…

信号处理 · 电气工程与系统科学 2023-05-19 Vladislav Ryzhov

Intelligent Transportation Systems (ITS) can benefit from roadside 4D mmWave radar sensors for large-scale traffic monitoring due to their weatherproof functionality, long sensing range and low manufacturing cost. However, the localization…

机器人学 · 计算机科学 2024-07-04 Longfei Han , Qiuyu Xu , Klaus Kefferpütz , Gordon Elger , Jürgen Beyerer

The mainstream CNN-based remote sensing (RS) image semantic segmentation approaches typically rely on massive labeled training data. Such a paradigm struggles with the problem of RS multi-view scene segmentation with limited labeled views…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Zipeng Qi , Hao Chen , Chenyang Liu , Zhenwei Shi , Zhengxia Zou

Passive acoustic sensing is a cost-effective solution for monitoring moving targets such as vessels and aircraft, but its performance is hindered by complex propagation effects like multi-path reflections and motion-induced artefacts.…

声音 · 计算机科学 2026-01-23 Lucas C. F. Domingos , Russell S. A. Brinkworth , Paulo E. Santos , Karl Sammut

3D Gaussian splatting has demonstrated impressive performance in real-time novel view synthesis. However, achieving successful reconstruction from RGB images generally requires multiple input views captured under static conditions. To…

计算机视觉与模式识别 · 计算机科学 2024-05-31 Wei Sun , Qi Zhang , Yanzhao Zhou , Qixiang Ye , Jianbin Jiao , Yuan Li

Unmanned Aerial Vehicles (UAVs) are crucial in Search and Rescue (SAR) missions due to their ability to monitor vast maritime areas. However, small objects often remain difficult to detect from high altitudes due to low object-to-background…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Sakib Ahmed , Oscar Pizarro

Realizing relative localization by leveraging inter-robot local measurements is a challenging problem, especially in the presence of measurement noise. Motivated by this challenge, in this paper we propose a novel and systematic 3-D…

机器人学 · 计算机科学 2026-04-03 Chenyang Liang , Liangming Chen , Baoyi Cui , Jie Mei

Radar odometry estimation has emerged as a critical technique in the field of autonomous navigation, providing robust and reliable motion estimation under various environmental conditions. Despite its potential, the complex nature of radar…

机器人学 · 计算机科学 2024-04-08 Matteo Frosi , Mirko Usuelli , Matteo Matteucci

Sound event localization and detection (SELD) involves predicting active sound event classes over time while estimating their positions. The localization subtask in SELD is usually treated as a direction of arrival estimation problem,…

音频与语音处理 · 电气工程与系统科学 2026-04-21 Davide Berghi , Philip J. B. Jackson

Reconfigurable Intelligent Surface (RIS) has been recognized as a promising solution for enhancing localization accuracy. Traditional RIS-based localization methods typically rely on prior channel knowledge, beam scanning, and pilot-based…

信号处理 · 电气工程与系统科学 2025-04-04 Jiawei Yao , Yijie Mao , Mingzhe Chen , Ye Hu

The simulation of two-dimensional (2D) wave propagation is an affordable computational task and its use can potentially improve time performance in vocal tracts' acoustic analysis. Several models have been designed that rely on 2D wave…

声音 · 计算机科学 2019-09-23 Debasish Ray Mohapatra , Victor Zappi , Sidney Fels

In this paper, an improved numerical solver to evaluate the time-dependent radiative transfer equation (RTE) for underwater optical wireless communications (UOWC) is investigated. The RTE evaluates the optical path-loss of light wave in an…

信号处理 · 电气工程与系统科学 2019-05-07 Elmehdi Illi , Faissal El Bouanani , Ki-Hong Park , Fouad Ayoub , Mohamed-Slim Alouini

The emergence of real-time 3D ultrasound (US) makes it possible to consider image-based tracking of subcutaneous soft tissue targets for computer guided diagnosis and therapy. We propose a 3D transrectal US based tracking system for precise…

其他计算机科学 · 计算机科学 2008-01-17 Michael Baumann , Pierre Mozer , Vincent Daanen , Jocelyne Troccaz

The goal of Multilingual Visual Answer Localization (MVAL) is to locate a video segment that answers a given multilingual question. Existing methods either focus solely on visual modality or integrate visual and subtitle modalities.…

多媒体 · 计算机科学 2024-11-06 Zhibin Wen , Bin Li