Results 11 to 20 of about 893,901 (189)

ArUcoE: Enhanced ArUco Marker [PDF]

2021 21st International Conference on Control, Automation and Systems (ICCAS), 2021
This paper presents a novel fiducial marker type called ArUcoE. It is obtained from a standard ArUco marker by enhancing it with a chessboard-like pattern. With our approach the pose estimation accuracy of any ArUco marker can easily be increased. Further methods to increase the accuracy are analyzed.
O. Kedilioglu, T. Bocco, M. Landesberger, A. Rizzo, J. Franke   +4 more
openaire   +3 more sources

Towards Design and Development of an ArUco Markers-Based Quantitative Surface Tactile Sensor

CoRR, 2023
In this paper, with the goal of quantifying the qualitative image outputs of a Vision-based Tactile Sensor (VTS), we present the design, fabrication, and characterization of a novel Quantitative Surface Tactile Sensor (called QS-TS). QS-TS directly estimates the sensor's gel layer deformation in real-time enabling safe and autonomous tactile ...
Ozdemir Can Kara, Charles Everson, Farshid Alambeigi   +2 more
openaire   +3 more sources

Relative Vessel Motion Tracking using Sensor Fusion, Aruco Markers, and MRU Sensors [PDF]

Modeling, Identification and Control, 2017
This paper presents a novel approach for estimating the relative motion between two moving offshore vessels. The method is based on a sensor fusion algorithm including a vision system and two motion reference units (MRUs).
Sondre Sanden Tordal, Geir Hovland
doaj   +2 more sources

A hybrid approach for real-time hand tracking using fiducial markers and inertial sensors [PDF]

MethodsX
This paper presents a cost-effective hybrid hand-tracking technique that integrates fiducial marker detection, capacitive touch sensing, and inertial measurement for real-time gesture recognition in immersive environments.
Ranjeet Bidwe, Shubhangi Deokar, Yash Parkhi, Tanisha Vyas, Nimita Jestin, Utkarsh Kumar, Satviki Budhia, Armaan Jeswani   +7 more
doaj   +2 more sources

Depth from 2D Images: Development and Metrological Evaluation of System Uncertainty Applied to Agricultural Scenarios [PDF]

Sensors
This article describes the development, experimental validation, and uncertainty analysis of a simple-to-use model for monocular depth estimation based on optical flow.
Bernardo Lanza, Cristina Nuzzi, Simone Pasinetti   +2 more
doaj   +2 more sources

Monocular Near-Infrared Optical Tracking with Retroreflective Fiducial Markers for High-Accuracy Image-Guided Surgery [PDF]

Sensors
Image-guided surgical procedures demand tracking systems that combine high accuracy, low latency, and minimal footprint to ensure safe and precise navigation in the operating room.
Javier Hernán Moviglia, Jan Stallkamp
doaj   +2 more sources

Development and computer-assisted validation of a radio frequency identification system for tracking individual chicken visits to functional areas [PDF]

Poultry Science
Understanding how laying hens interact with functional resources—such as drinkers, feeders, perches, nest boxes, and wintergardens—is essential for meeting their physiological needs and enabling species-specific behaviors.
Serge Alindekon, T. Bas Rodenburg, Jan Langbein, Birger Puppe, Olaf Wilmsmeier, Sebastian Wille, Helen Louton   +6 more
doaj   +2 more sources

Quantifying sitting posture: A pilot feasibility study of computer vision and wearable sensors (Posture Lab) using a manikin model [PDF]

Wearable Technologies
Posture-related musculoskeletal issues among office workers are a significant health concern, mainly due to long periods spent in static positions. This research presents a Posture Lab which is a workplace-based solution through an easy-to-use posture ...
Supachai Vorapojpisut, Suphawit Sansuk, Phoomtai Yindee, Darawadee Panich, Vinitha Puengtanom, Sairag Saadprai   +5 more
doaj   +2 more sources

Computer vision mechanical QA: Development, characterization, and five years of clinical performance. [PDF]

J Appl Clin Med Phys
Abstract Background Quality assurance (QA) in radiation therapy is a critical component of ensuring accurate and consistent patient treatments, but many tasks are time consuming and rely on human visual acuity, which limits their accuracy. Purpose We aimed to automate monthly mechanical QA tests, improve measurement accuracy and precision, and decrease
Ger RB, Armstrong MD, Robertson DG.
europepmc   +2 more sources

Augmented reality navigation in orthognathic surgery: Comparative analysis and a paradigm shift [PDF]

Healthcare Technology Letters
The emergence of augmented reality (AR) in surgical procedures could significantly enhance accuracy and outcomes, particularly in the complex field of orthognathic surgery. This study compares the effectiveness and accuracy of traditional drilling guides
Marek Żelechowski, Jokin Zubizarreta‐Oteiza, Murali Karnam, Balázs Faludi, Norbert Zentai, Nicolas Gerig, Georg Rauter, Florian M. Thieringer, Philippe C. Cattin   +8 more
doaj   +2 more sources