Results 31 to 40 of about 123,319 (159)

Semantic-Structure-Aware Multi-Level Information Fusion for Robust Global Orientation Optimization of Autonomous Mobile Robots

open access: yesSensors, 2023
Multi-camera-based simultaneous localization and mapping (SLAM) has been widely applied in various mobile robots under uncertain or unknown environments to accomplish tasks autonomously.
Guofei Xiang   +3 more
doaj   +1 more source

Adaptive Morphological Framework for 3D Directional Filtering

open access: yesImage Analysis and Stereology, 2022
Engineering materials often feature lower dimensional and directed structures such as cracks, fibers, or closed facets in foams. The characterization of such structures in 3D is of particular interest in various applications in materials science.
Tin Barisin   +3 more
doaj   +1 more source

Finding the Optimal Pose of 2D LLT Sensors to Improve Object Pose Estimation

open access: yesSensors, 2022
In this paper, we examine a method for improving pose estimation by correctly positioning the sensors relative to the scanned object. Three objects made of different materials and using different manufacturing technologies were selected for the ...
Dominik Heczko   +7 more
doaj   +1 more source

2-D distributed pose estimation of multi-agent systems using bearing measurements

open access: yesJournal of Automation and Intelligence, 2023
This article studies distributed pose (orientation and position) estimation of leader–follower multi-agent systems over κ-layer graphs in 2-D plane. Only the leaders have access to their orientations and positions, while the followers can measure the ...
Xu Fang, Jitao Li, Xiaolei Li, Lihua Xie
doaj   +1 more source

A Fast and Simple Method for Absolute Orientation Estimation Using a Single Vanishing Point

open access: yesApplied Sciences, 2022
Absolute orientation estimation is one of the key steps in computer vision, and n 2D–3D point correspondences can be used to obtain the absolute orientation, which is known as the perspective-n-point problem (PnP).
Kai Guo, Hu Ye, Junhao Gu, Ye Tian
doaj   +1 more source

Extension of the Rigid-Constraint Method for the Heuristic Suboptimal Parameter Tuning to Ten Sensor Fusion Algorithms Using Inertial and Magnetic Sensing

open access: yesSensors, 2021
The orientation of a magneto-inertial measurement unit can be estimated using a sensor fusion algorithm (SFA). However, orientation accuracy is greatly affected by the choice of the SFA parameter values which represents one of the most critical steps.
Marco Caruso   +4 more
doaj   +1 more source

Body and Head Orientation Estimation From Low-Resolution Point Clouds in Surveillance Settings

open access: yesIEEE Access
We propose a system that estimates people’s body and head orientations using low-resolution point cloud data from two LiDAR sensors. Our models make accurate estimations in real-world conversation settings where subjects move naturally with ...
Onur N. Tepencelik   +3 more
doaj   +1 more source

A New Multi-Sensor Fusion Scheme to Improve the Accuracy of Knee Flexion Kinematics for Functional Rehabilitation Movements

open access: yesSensors, 2016
Exergames have been proposed as a potential tool to improve the current practice of musculoskeletal rehabilitation. Inertial or optical motion capture sensors are commonly used to track the subject’s movements.
Halim Tannous   +6 more
doaj   +1 more source

Use of Earth’s Magnetic Field for Mitigating Gyroscope Errors Regardless of Magnetic Perturbation

open access: yesSensors, 2011
Most portable systems like smart-phones are equipped with low cost consumer grade sensors, making them useful as Pedestrian Navigation Systems (PNS).
Muhammad Haris Afzal   +2 more
doaj   +1 more source

Improved Complementary Filters for Estimation of Heading and Attitude Angles in Accelerated Motion [PDF]

open access: yesمکانیک هوافضا, 2023
In this paper, a method for improving the performance of Complementary filter in the Attitude and Heading Reference System for estimating the orientation in accelerated movements is presented.
Ali Namvar   +3 more
doaj  

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