Results 21 to 30 of about 108,612 (260)

Comparison of optical and MR‐based tracking [PDF]

open access: yesMagnetic Resonance in Medicine, 2014
PurposeThe goal of this study was to compare the accuracy of two real‐time motion tracking systems in the MR environment: MR‐based prospective motion correction (PROMO) and optical moiré phase tracking (MPT).MethodsFive subjects performed eight predefined head rotations of 8° ± 3° while being simultaneously tracked with PROMO and MPT. Structural images
Gumus, Kazim   +8 more
openaire   +5 more sources

Tracking Systems for Virtual Rehabilitation: Objective Performance vs. Subjective Experience. A Practical Scenario

open access: yesSensors, 2015
Motion tracking systems are commonly used in virtual reality-based interventions to detect movements in the real world and transfer them to the virtual environment.
Roberto Lloréns   +5 more
doaj   +1 more source

Disturbance-Observer-Based LQR Tracking Control for Electro-Optical System

open access: yesPhotonics, 2023
To improve the dynamic property and the disturbance suppression ability of an electro-optical tracking system, this paper presents a disturbance-observer-based LQR tracking control method.
Chao Liu, Yao Mao, Xiaoxia Qiu
doaj   +1 more source

Multi-frame image restoration method for novel rotating synthetic aperture imaging system

open access: yesResults in Physics, 2021
The novel rotating synthetic aperture (RSA) optical imaging system is an important development direction for future high-resolution optical remote sensing satellites in geostationary orbit.
Xiyang Zhi   +6 more
doaj   +1 more source

Retro-Reflective-Marker-Aided Target Pose Estimation in a Safety-Critical Environment

open access: yesApplied Sciences, 2020
Visual technologies have an indispensable role in safety-critical applications, where tasks must often be performed through teleoperation. Due to the lack of stereoscopic and motion parallax depth cues in conventional images, alignment tasks pose a ...
Laura Gonçalves Ribeiro   +5 more
doaj   +1 more source

Impact of an Augmented Reality Navigation System (SIRIO) on Bone Percutaneous Procedures: A Comparative Analysis with Standard CT-Guided Technique

open access: yesCurrent Oncology, 2021
(1) Background: The purpose of this study is to evaluate the impact of an augmented reality navigation system (SIRIO) for percutaneous biopsies and ablative treatments on bone lesions, compared to a standard CT-guided technique.
Eliodoro Faiella   +7 more
doaj   +1 more source

Single-Photon Tracking for High-Speed Vision

open access: yesSensors, 2018
Quanta Imager Sensors provide photon detections at high frame rates, with negligible read-out noise, making them ideal for high-speed optical tracking.
Istvan Gyongy   +2 more
doaj   +1 more source

Ambiguity-Free Optical–Inertial Tracking for Augmented Reality Headsets

open access: yesSensors, 2020
The increasing capability of computing power and mobile graphics has made possible the release of self-contained augmented reality (AR) headsets featuring efficient head-anchored tracking solutions.
Fabrizio Cutolo   +4 more
doaj   +1 more source

Head-Mounted Projector for Manual Precision Tasks: Performance Assessment

open access: yesSensors, 2023
The growing interest in augmented reality applications has led to an in-depth look at the performance of head-mounted displays and their testing in numerous domains.
Virginia Mamone   +5 more
doaj   +1 more source

Optical Flow in Deep Visual Tracking

open access: yesProceedings of the AAAI Conference on Artificial Intelligence, 2020
Single-target tracking of generic objects is a difficult task since a trained tracker is given information present only in the first frame of a video. In recent years, increasingly many trackers have been based on deep neural networks that learn generic features relevant for tracking.
Visala, Arto, Vihlman, Mikko
openaire   +3 more sources

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