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Inertial Measurement Unit (IMU) sensors, including accelerometers, gyroscopes, and magnetometers, are used to estimate the orientation of mobile devices. However, indoor magnetic fields are often distorted, causing the magnetometer's…

Signal Processing · Electrical Eng. & Systems 2024-10-17 Sikai Yang , Miaomiao Liu , Wan Du

Accurate alignment of a fixed mobile device equipped with inertial sensors inside a moving vehicle is important for navigation, activity recognition, and other applications. Accurate estimation of the device mounting angle is required to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Maxim Freydin , Niv Sfaradi , Nimrod Segol , Areej Eweida , Barak Or

This paper presents a novel framework to realize proprioception and closed-loop control for soft manipulators. Deformations with large elongation and large bending can be precisely predicted using geometry-based sensor signals obtained from…

Robotics · Computer Science 2023-09-26 Yinan Meng , Guoxin Fang , Jiong Yang , Yuhu Guo , Charlie C. L. Wang

Deformable scenes violate the rigidity assumptions underpinning classical visual--inertial odometry (VIO), often leading to over-fitting to local non-rigid motion or to severe camera pose drift when deformation dominates visual parallax. In…

Robotics · Computer Science 2026-03-18 Samuel Cerezo , Javier Civera

LiDAR-inertial odometry (LIO) plays a vital role in achieving accurate localization and mapping, especially in complex environments. However, the presence of LiDAR feature degeneracy poses a major challenge to reliable state estimation. To…

Robotics · Computer Science 2025-08-21 Guodong Yao , Hao Wang , Qing Chang

In recent years there have been excellent results in Visual-Inertial Odometry techniques, which aim to compute the incremental motion of the sensor with high accuracy and robustness. However these approaches lack the capability to close…

Robotics · Computer Science 2017-01-18 Raul Mur-Artal , Juan D. Tardos

Robust and accurate six degree-of-freedom tracking on portable devices remains a challenging problem, especially on small hand-held devices such as smartphones. For improved robustness and accuracy, complementary movement information from…

Computer Vision and Pattern Recognition · Computer Science 2020-06-25 Lassi Meronen , William J. Wilkinson , Arno Solin

With the rapid development of wearable technology, devices like smartphones, smartwatches, and headphones equipped with IMUs have become essential for applications such as pedestrian positioning. However, traditional pedestrian dead…

Machine Learning · Computer Science 2024-11-13 Lan Sun , Songpengcheng Xia , Junyuan Deng , Jiarui Yang , Zengyuan Lai , Qi Wu , Ling Pei

Inertial measurement units (IMUs) are fundamental sensing components in multi-source integrated navigation systems, and their performance directly determines the accuracy and reliability of solutions. However, the precision of low-cost IMUs…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Jiarui Lv , Feng Zhu , Xiaohong Zhang

Scan undistortion is a key module for LiDAR odometry in high dynamic environment with high rotation and translation speed. The existing line of studies mostly focuses on one pass undistortion, which means undistortion for each point is…

Robotics · Computer Science 2022-09-29 Keke Liu , Hao Ma , Zemin Wang

We present a method of extrinsic calibration for a system of multiple inertial measurement units (IMUs) that estimates the relative pose of each IMU on a rigid body using only measurements from the IMUs themselves, without the need to…

Robotics · Computer Science 2022-05-31 Jongwon Lee , David Hanley , Timothy Bretl

We propose an accurate and robust multi-modal sensor fusion framework, MetroLoc, towards one of the most extreme scenarios, the large-scale metro vehicle localization and mapping. MetroLoc is built atop an IMU-centric state estimator that…

Robotics · Computer Science 2021-11-02 Yusheng Wang , Weiwei Song , Yi Zhang , Fei Huang , Zhiyong Tu , Yidong Lou

Recent advancements in visual-inertial motion capture systems have demonstrated the potential of combining monocular cameras with sparse inertial measurement units (IMUs) as cost-effective solutions, which effectively mitigate occlusion and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Tutian Tang , Xingyu Ji , Yutong Li , MingHao Liu , Wenqiang Xu , Cewu Lu

In this paper, we present a tightly coupled optimization-based GPS-Visual-Inertial odometry system to solve the trajectory drift of the visual-inertial odometry especially over long-term runs. Visual reprojection residuals, IMU residuals,…

Robotics · Computer Science 2022-03-08 Shihao Han , Feiyang Deng , Tao Li , Hailong Pei

In this paper, we study state estimation of multi-visual-inertial systems (MVIS) and develop sensor fusion algorithms to optimally fuse an arbitrary number of asynchronous inertial measurement units (IMUs) or gyroscopes and global and(or)…

Robotics · Computer Science 2024-09-04 Yulin Yang , Patrick Geneva , Guoquan Huang

With the prevalence of wearable devices, inertial measurement unit (IMU) data has been utilized in monitoring and assessment of human mobility such as human activity recognition (HAR). Training deep neural network (DNN) models for these…

Signal Processing · Electrical Eng. & Systems 2022-02-23 Yujiao Hao , Boyu Wang , Rong Zheng

This paper presents a control interface to translate the residual body motions of individuals living with severe disabilities, into control commands for body-machine interaction. A custom, wireless, wearable multi-sensor network is used to…

Traditional monocular Visual-Inertial Odometry (VIO) systems struggle in low-texture environments where sparse visual features are insufficient for accurate pose estimation. To address this, dense Monocular Depth Estimation (MDE) has been…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Arda Alniak , Sinan Kalkan , Mustafa Mert Ankarali , Afsar Saranli , Abdullah Aydin Alatan

Human bodily movements convey critical insights into action intentions and cognitive processes, yet existing multimodal systems primarily focused on understanding human motion via language, vision, and audio, which struggle to capture the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Ziwei Shan , Yaoyu He , Chengfeng Zhao , Jiashen Du , Jingyan Zhang , Qixuan Zhang , Jingyi Yu , Lan Xu

Building a complete inertial navigation system using the limited quality data provided by current smartphones has been regarded challenging, if not impossible. This paper shows that by careful crafting and accounting for the weak…

Computer Vision and Pattern Recognition · Computer Science 2018-06-11 Arno Solin , Santiago Cortes , Esa Rahtu , Juho Kannala