Fiducial markers for pose estimation: Overview, applications and experimental comparison of the artag, apriltag, aruco and stag markers

M Kalaitzakis, B Cain, S Carroll, A Ambrosi… - Journal of Intelligent & …, 2021 - Springer
Robust localization is critical for the navigation and control of mobile robots. Global
Navigation Satellite Systems (GNSS), Visual-Inertial Odometry (VIO), and Simultaneous …

Position and attitude control of multi-rotor aerial vehicles: A survey

TP Nascimento, M Saska - Annual Reviews in Control, 2019 - Elsevier
Motion control theory applied to multi-rotor aerial vehicles (MAVs) has gained attention with
the recent increase in the processing power of computers, which are now able to perform the …

Recent advances in vision-based indoor navigation: A systematic literature review

D Khan, Z Cheng, H Uchiyama, S Ali, M Asshad… - Computers & …, 2022 - Elsevier
Indoor navigation has remained an active research area for the last decade. Unlike outdoor
environments, indoor environments have additional challenges, such as weak signals, low …

Experimental comparison of fiducial markers for pose estimation

M Kalaitzakis, S Carroll, A Ambrosi… - 2020 International …, 2020 - ieeexplore.ieee.org
Accurate localization is crucial for the autonomous navigation and control of Unmanned
Aircraft Systems (UAS). In most applications, localization is provided from a Global …

Speakingfaces: A large-scale multimodal dataset of voice commands with visual and thermal video streams

M Abdrakhmanova, A Kuzdeuov, S Jarju, Y Khassanov… - Sensors, 2021 - mdpi.com
We present SpeakingFaces as a publicly-available large-scale multimodal dataset
developed to support machine learning research in contexts that utilize a combination of …

Hybrid indoor localization using IMU sensors and smartphone camera

A Poulose, DS Han - Sensors, 2019 - mdpi.com
Smartphone camera or inertial measurement unit (IMU) sensor-based systems can be
independently used to provide accurate indoor positioning results. However, the accuracy of …

Flying batteries: In-flight battery switching to increase multirotor flight time

KP Jain, MW Mueller - 2020 IEEE International Conference on …, 2020 - ieeexplore.ieee.org
We present a novel approach to increase the flight time of a multirotor via mid-air docking
and in-flight battery switching. A main quadcopter flying using a primary battery has a …

Fractal markers: A new approach for long-range marker pose estimation under occlusion

FJ Romero-Ramire, R Munoz-Salinas… - IEEE …, 2019 - ieeexplore.ieee.org
Squared fiducial markers are a powerful tool for camera pose estimation in applications
such as robots, unmanned vehicles and augmented reality. The four corners of a single …

A vision-based monitoring method for the looseness of high-strength bolt

Y Pan, Y Ma, Y Dong, Z Gu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Bolts are widely applied to the connections of structural components. Under the actions of
alternative forces induced by the external loads, the bolts are commonly inevitable to be …

The IMU/UWB fusion positioning algorithm based on a particle filter

Y Wang, X Li - ISPRS International Journal of Geo-Information, 2017 - mdpi.com
This paper integrates UWB (ultra-wideband) and IMU (Inertial Measurement Unit) data to
realize pedestrian positioning through a particle filter in a non-line-of-sight (NLOS) …