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This paper proposes a novel method for vision-based metric cross-view geolocalization (CVGL) that matches the camera images captured from a ground-based vehicle with an aerial image to determine the vehicle's geo-pose. Since aerial images…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Florian Fervers , Sebastian Bullinger , Christoph Bodensteiner , Michael Arens , Rainer Stiefelhagen

In this paper, a method to detect environmental hazards related to a fall risk using a mobile vision system is proposed. First-person perspective videos are proposed to provide objective evidence on cause and circumstances of perturbed…

Computer Vision and Pattern Recognition · Computer Science 2016-11-03 Mina Nouredanesh , Andrew McCormick , Sunil L. Kukreja , James Tung

The calibration and analysis of polarization observations in Very Long Baseline Interferometry (VLBI) requires the use of specific algorithms that suffer from several limitations, closely related to assumptions in the data properties that…

Instrumentation and Methods for Astrophysics · Physics 2021-02-10 Ivan Marti-Vidal , Alejandro Mus , Michael Janssen , Pablo de Vicente , Javier Gonzalez

Navigation and localization of UAVs present a challenge when global navigation satellite systems (GNSS) are disrupted and unreliable. Traditional techniques, such as simultaneous localization and mapping (SLAM) and visual odometry (VO),…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Haoling Li , Jiuniu Wang , Zhiwei Wei , Wenjia Xu

As large language models (LLMs) are increasingly deployed in high-stakes applications, robust uncertainty estimation is essential for ensuring the safe and trustworthy deployment of LLMs. We present the most comprehensive study to date of…

Computation and Language · Computer Science 2025-06-02 Linwei Tao , Yi-Fan Yeh , Minjing Dong , Tao Huang , Philip Torr , Chang Xu

Visible light positioning (VLP) is an accurate indoor positioning technology that uses luminaires as transmitters. In particular, circular luminaires are a common source type for VLP, that are typically treated only as point sources for…

Signal Processing · Electrical Eng. & Systems 2022-04-19 Zhiyu Zhu , Caili Guo , Rongzhen Bao , Mingzhe Chen , Walid Saad , Yang Yang

Stroke patients often experience upper limb impairments that restrict their mobility and daily activities. Physical therapy (PT) is the most effective method to improve impairments, but low patient adherence and participation in PT…

Accurately diagnosing bearing faults is crucial for maintaining the efficient operation of rotating machinery. However, traditional diagnosis methods face challenges due to the diversification of application environments, including…

Signal Processing · Electrical Eng. & Systems 2024-11-06 Laifa Tao , Haifei Liu , Guoao Ning , Wenyan Cao , Bohao Huang , Chen Lu

Navigation solutions suitable for cases when both autonomous robot's pose (\textit{i.e}., attitude and position) and its environment are unknown are in great demand. Simultaneous Localization and Mapping (SLAM) fulfills this need by…

Systems and Control · Electrical Eng. & Systems 2022-04-04 Hashim A. Hashim , Abdelrahman E. E. Eltoukhy

In this paper, WALK-VIO, a novel visual-inertial odometry (VIO) with walking-motion-adaptive leg kinematic constraints that change with body motion for localization of quadruped robots, is proposed. Quadruped robots primarily use VIO…

Robotics · Computer Science 2021-12-01 Hyunjun Lim , Byeongho Yu , Yeeun Kim , Joowoong Byun , Soonpyo Kwon , Haewon Park , Hyun Myung

This work devises an optimized machine learning approach for human arm pose estimation from a single smartwatch. Our approach results in a distribution of possible wrist and elbow positions, which allows for a measure of uncertainty and the…

Robotics · Computer Science 2024-08-19 Fabian C Weigend , Shubham Sonawani , Michael Drolet , Heni Ben Amor

Underwater environments pose significant challenges for visual Simultaneous Localization and Mapping (SLAM) systems due to limited visibility, inadequate illumination, and sporadic loss of structural features in images. Addressing these…

Robotics · Computer Science 2025-03-17 Shida Xu , Kaicheng Zhang , Sen Wang

Background: Pressure mapping technology has been adapted to monitor over prolonged periods to evaluate pressure ulcer risk in individuals during extended lying postures. However, temporal pressure distribution signals are not currently used…

Medical Physics · Physics 2020-10-09 Silvia Caggiari , Peter Worsley , Yohan Payan , Marek Bucki , Dan Bader

The reactions of the human body to physical exercise, psychophysiological stress and heart diseases are reflected in heart rate variability (HRV). Thus, continuous monitoring of HRV can contribute to determining and predicting issues in…

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…

Optimization and Control · Mathematics 2019-07-03 Sai Krishna Kanth Hari , Kaarthik Sundar , Jose Braga , Joao Teixeira , Joao Sousa , Swaroop Darbha

Motivated by the goal of achieving robust, drift-free pose estimation in long-term autonomous navigation, in this work we propose a methodology to fuse global positional information with visual and inertial measurements in a tightly-coupled…

Robotics · Computer Science 2020-07-13 Giovanni Cioffi , Davide Scaramuzza

Safety and automatic control are extremely important when operating manipulators. For large engineering manipulators, the main challenge is to accurately recognize the posture of all arm segments. In classical sensing methods, the accuracy…

Optimization and Control · Mathematics 2020-07-16 Zhi-Qiang Yao , Yi-Jue Dai , Qing-Na Li , Dang Xie , Ze-Hui Liu

Human movement analysis is crucial in health and sports biomechanics for understanding physical performance, guiding rehabilitation, and preventing injuries. However, existing tools are often proprietary, expensive, and function as "black…

To build commercial robots, skid-steering mechanical design is of increased popularity due to its manufacturing simplicity and unique mechanism. However, these also cause significant challenges on software and algorithm design, especially…

Robotics · Computer Science 2022-10-27 Xingxing Zuo , Mingming Zhang , Mengmeng Wang , Yiming Chen , Guoquan Huang , Yong Liu , Mingyang Li

As positioning solutions integrate multiple components to improve accuracy, the number of parameters that require calibration has increased. This paper studies a calibration-free positioning technique using Wi-Fi ranging and pedestrian dead…

Networking and Internet Architecture · Computer Science 2020-07-07 Jeongsik Choi , Yang-Seok Choi