Results 41 to 50 of about 123,319 (159)

Effects of repetitive low-acceleration impacts on attitude estimation with micro-electromechanical inertial measurement units

Frontiers in Robotics and AI, 2023
Inertial Measurement Units are present in several applications in aerospace, unmanned vehicle navigation, legged robots, and human motion tracking systems, due to their ability to estimate a body’s acceleration, orientation and angular rate.
Federico Allione, Federico Allione, Juan D. Gamba, Antonios E. Gkikakis, Roy Featherstone, Darwin Caldwell   +5 more
doaj   +1 more source

DOES: A Deep Learning-Based Approach to Estimate Roll and Pitch at Sea

IEEE Access, 2022
The use of Attitude and Heading Reference Systems (AHRS) for orientation estimation is now common practice in a wide range of applications, e.g., robotics and human motion tracking, aerial vehicles and aerospace, gaming and virtual reality, indoor ...
Fabiana Di Ciaccio, Paolo Russo, Salvatore Troisi   +2 more
doaj   +1 more source

Improved structure-adaptive anisotropic filter based on a nonlinear structure tensor

Cybernetics and Information Technologies, 2014
A variety of structure-adaptive filters are proposed to overcome the blurred effects of image structures caused by the classical Gaussian weighted mean filter.
Wu Jie, Feng Zuren, Ren Zhigang
doaj   +1 more source

Directional functions for orientation distribution estimation [PDF]

Medical Image Analysis, 2008
Computing the orientation distribution function (ODF) from high angular resolution diffusion imaging (HARDI) signals makes it possible to determine the orientation of fiber bundles of the brain. The HARDI signals are samples measured from a spherical shell and thus require processing on the sphere.
Yogesh Rathi, Oleg V. Michailovich, Sylvain Bouix, Martha Elizabeth Shenton   +3 more
openaire   +5 more sources

Estimating Orientation of Flying Fruit Flies

PLOS ONE, 2015
The recently growing interest in studying flight behaviours of fruit flies, Drosophila melanogaster, has highlighted the need for developing tools that acquire quantitative motion data. Despite recent advance of video tracking systems, acquiring a flying fly's orientation remains a challenge for these tools. In this paper, we present a novel method for
Xi En Cheng, Shuo Hong Wang, Zhi-Ming Qian, Yan Qiu Chen   +3 more
openaire   +4 more sources

IMU Error Propagation in Position Reconstruction and Its Mitigation Through Task-Informed Dual-IMU Constrained Optimization: Application to Golf Putting

Sensors
Inertial measurement units (IMUs) are promising low-cost tools for golf putting analysis, but accurate putter trajectory reconstruction remains limited by sensor errors, sensor fusion tuning, and drift accumulation during numerical integration.
Rachele Rossanigo, Diletta Balta, Niccolò Tortarolo, Marco Caruso   +3 more
doaj   +1 more source

Design and implementation of AHRS/GPS/DR Navigation algorithm applied to long-range AUVs with high underwater durability

نشریه مهندسی دریا, 2018
Time-growing navigation error due to inevitable measurement errors in the MEMS-grade inertial sensor is one of the main challenges in low-cost inertial navigation systems (INSs).
Ebrahim Alizadeh, Hossein Nourmohammadi, Mohammad Taghi Sabet, Mostafa Zarrini Larimi   +3 more
doaj  

Inertial Motion Capture Costume Design Study

Sensors, 2017
The paper describes a scalable, wearable multi-sensor system for motion capture based on inertial measurement units (IMUs). Such a unit is composed of accelerometer, gyroscope and magnetometer.
Agnieszka Szczęsna, Przemysław Skurowski, Ewa Lach, Przemysław Pruszowski, Damian Pęszor, Marcin Paszkuta, Janusz Słupik, Kamil Lebek, Mateusz Janiak, Andrzej Polański, Konrad Wojciechowski   +10 more
doaj   +1 more source

Improved Anisotropic Gaussian Filters

Image Analysis and Stereology
Elongated anisotropic Gaussian filters are used for the orientation estimation of fibers. In cases where computed tomography images are noisy, roughly resolved, and of low contrast, they are the method of choice even if being efficient only in virtual ...
Alex Keilmann, Michael Godehardt, Ali Moghiseh, Claudia Redenbach, Katja Schladitz   +4 more
doaj   +1 more source

Keeping a Good Attitude: A Quaternion-Based Orientation Filter for IMUs and MARGs

Sensors, 2015
Orientation estimation using low cost sensors is an important task for Micro Aerial Vehicles (MAVs) in order to obtain a good feedback for the attitude controller.
Roberto G. Valenti, Ivan Dryanovski, Jizhong Xiao   +2 more
doaj   +1 more source