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This paper presents an extension of the DRIFT invariant state estimation framework, enabling robust fusion of GPS and IMU data for accurate pose and heading estimation. Originally developed for testing and usage on a marine autonomous…

Robotics · Computer Science 2025-07-04 Surya Pratap Singh , Tsimafei Lazouski , Maani Ghaffari

We propose to estimate 3D human pose from multi-view images and a few IMUs attached at person's limbs. It operates by firstly detecting 2D poses from the two signals, and then lifting them to the 3D space. We present a geometric approach to…

Computer Vision and Pattern Recognition · Computer Science 2020-04-13 Zhe Zhang , Chunyu Wang , Wenhu Qin , Wenjun Zeng

This paper proposes a low-cost six Degree-of-Freedom (6-DOF) navigation system for small aerial robots based on the integration of Global Position System (GPS) receiver with sensors of inertional Microelectromechanical Systems (MEMS). In…

Systems and Control · Electrical Eng. & Systems 2020-08-25 Guiqiu Liao , Jiankang Zhao , Chao Cui , Haihui Long , Jianbin Zhu , Achraf Djerida

Inertial measurement units (IMUs) increasingly function as a basic component of wearable sensor network (WSN)systems. IMU-based joint angle estimation (JAE) is a relatively typical usage of IMUs, with extensive applications. However, the…

Signal Processing · Electrical Eng. & Systems 2021-06-10 Chunzhi Yi , Feng Jiang , Baichun Wei , Chifu Yang , Zhen Ding , Jubo Jin , Jie Liu

Underwater environments pose unique challenges for robotic navigation and manipulation. While existing research has primarily focused on task-specific methods, studies on general-purpose intelligence for multi-task execution remain scarce.…

Automatic and precise fitness activity recognition can be beneficial in aspects from promoting a healthy lifestyle to personalized preventative healthcare. While IMUs are currently the prominent fitness tracking modality, through iMove, we…

Signal Processing · Electrical Eng. & Systems 2024-06-04 Mengxi Liu , Vitor Fortes Rey , Yu Zhang , Lala Shakti Swarup Ray , Bo Zhou , Paul Lukowicz

Activity recognition computer vision algorithms can be used to detect the presence of autism-related behaviors, including what are termed "restricted and repetitive behaviors", or stimming, by diagnostic instruments. The limited data that…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Peter Washington , Aaron Kline , Onur Cezmi Mutlu , Emilie Leblanc , Cathy Hou , Nate Stockham , Kelley Paskov , Brianna Chrisman , Dennis P. Wall

Most deep learning object detectors are based on the anchor mechanism and resort to the Intersection over Union (IoU) between predefined anchor boxes and ground truth boxes to evaluate the matching quality between anchors and objects. In…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Heng Zhang , Elisa Fromont , Sébastien Lefevre , Bruno Avignon

Previous work has demonstrated that virtual accelerometry data, extracted from videos using cross-modality transfer approaches like IMUTube, is beneficial for training complex and effective human activity recognition (HAR) models. Systems…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Zikang Leng , Yash Jain , Hyeokhyen Kwon , Thomas Plötz

Exploring an unfamiliar indoor environment and avoiding obstacles is challenging for visually impaired people. Currently, several approaches achieve the avoidance of static obstacles based on the mapping of indoor scenes. To solve the issue…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Wenyan Ou , Jiaming Zhang , Kunyu Peng , Kailun Yang , Gerhard Jaworek , Karin Müller , Rainer Stiefelhagen

Continuous Authentication (CA) using behavioural biometrics is a type of biometric identification that recognizes individuals based on their unique behavioural characteristics, like their typing style. However, the existing systems that use…

Cryptography and Security · Computer Science 2023-07-21 Dilshan Senerath , Sanuja Tharinda , Maduka Vishwajith , Sanka Rasnayaka , Sandareka Wickramanayake , Dulani Meedeniya

Visual challenges in underwater environments significantly hinder the accuracy of vision-based localisation and the high-fidelity dense reconstruction. In this paper, we propose VISO, a robust underwater SLAM system that fuses a stereo…

Robotics · Computer Science 2026-03-09 Shu Pan , Simon Archieri , Ahmet Cinar , Jonatan Scharff Willners , Ignacio Carlucho , Yvan Petillot

Accurate visual inertial simultaneous localization and mapping (VI SLAM) for underwater robots remains a significant challenge due to frequent visual degeneracy and insufficient inertial measurement unit (IMU) motion excitation. In this…

Robotics · Computer Science 2025-10-29 Yuan Shen , Yuze Hong , Guangyang Zeng , Tengfei Zhang , Pui Yi Chui , Ziyang Hong , Junfeng Wu

We address the problem of shoulder-surfing attacks on authentication schemes by proposing IllusionPIN (IPIN), a PIN-based authentication method that operates on touchscreen devices. IPIN uses the technique of hybrid images to blend two…

Cryptography and Security · Computer Science 2017-08-23 Athanasios Papadopoulos , Toan Nguyen , Emre Durmus , Nasir Memon

This paper proposes a novel inertial-aided localization approach by fusing information from multiple inertial measurement units (IMUs) and exteroceptive sensors. IMU is a low-cost motion sensor which provides measurements on angular…

Robotics · Computer Science 2020-01-20 Ming Zhang , Yiming Chen , Xiangyu Xu , Mingyang Li

This paper addresses the challenge of estimating the orientation, position, and velocity of a vehicle operating in three-dimensional (3D) space with six degrees of freedom (6-DoF). A Deep Learning-based Adaptation Mechanism (DLAM) is…

Robotics · Computer Science 2025-03-13 Khashayar Ghanizadegan , Hashim A. Hashim

Relative State Estimation perform mutually localization between two mobile agents undergoing six-degree-of-freedom motion. Based on the principle of circular motion, the estimation accuracy is sensitive to nonlinear rotations of the…

Robotics · Computer Science 2025-11-27 Ruican Xia , Hailong Pei

State estimation is a crucial component for the successful implementation of robotic systems, relying on sensors such as cameras, LiDAR, and IMUs. However, in real-world scenarios, the performance of these sensors is degraded by challenging…

Robotics · Computer Science 2024-03-18 Jui-Te Huang , Ruoyang Xu , Akshay Hinduja , Michael Kaess

Global positioning systems can provide sufficient positioning accuracy for large scale robotic tasks in open environments. However, in underwater environments, these systems cannot be directly used, and measuring the position of underwater…

Robotics · Computer Science 2023-12-19 Vicu-Mihalis Maer , Levente Tamas , Lucian Busoniu

The development of the low-altitude economy has led to a growing prominence of uncrewed aerial vehicle (UAV) safety management issues. Therefore, accurate identification, real-time localization, and effective countermeasures have become…

Signal Processing · Electrical Eng. & Systems 2026-01-12 Yi Tao , Zhen Gao , Fangquan Ye , Jingbo Xu , Tao Song , Weidong Li , Yu Su , Lu Peng , Xiaomei Wu , Tong Qin , Zhongxiang Li , Dezhi Zheng