Results 101 to 110 of about 21,221 (284)

Fiducial Marker [PDF]

open access: yesInternational Journal of Clinical Studies and Medical Case Reports, 2020
openaire   +2 more sources

Assessment of Multiple Fiducial Marker Trackers on Hololens 2

open access: yesIEEE Access
Fiducial markers play a fundamental role in various fields in which precise localization and tracking are paramount. In Augmented Reality, they provide a known reference point in the physical world so that AR systems can accurately identify, track, and ...
Gabriel M. Costa   +3 more
doaj   +1 more source

Double Sided Traction Force Microscopy: A Method to Confine Cells for Physiologically Relevant Force Measurements

open access: yesCytoskeleton, EarlyView.
ABSTRACT In this paper we describe a technique to make a confined environment of variable stiffness that is suitable for high‐resolution live‐cell imaging. This versatile and adaptable technique enables cell confinement between soft elastic surfaces made from polyacrylamide gels.
Alexia Caillier, Patrick W. Oakes
wiley   +1 more source

FidMark: A Fiducial Marker Ontology for Semantically Describing Visual Markers

open access: yes
Fiducial markers are visual objects that can be placed in the field of view of an imaging sensor to determine its position and orientation, and subsequently the scale and position of other objects within the same field of view. They are used in a wide variety of applications ranging from medical applications to augmented reality (AR) solutions where ...
Maxim Van de Wynckel   +2 more
openaire   +2 more sources

Structural and Functional Imaging of Motor Outcomes in Twins With Perinatal Stroke: A Case Report

open access: yesAnnals of the Child Neurology Society, EarlyView.
ABSTRACT Background Perinatal arterial ischemic stroke (AIS) affects 1 in 4000 live births. Dystonia, affecting ~20% of children following AIS, is characterized by involuntary muscle contractions and abnormal movements. Why some develop dystonia post AIS, while others do not, remains unclear.
Prisca Hsu   +8 more
wiley   +1 more source

CEO Overconfidence, Industry Competition, and ESG Performance

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the interplay among CEO overconfidence, industry competition, and firms' ESG (Environmental, Social, and Governance) performance. With the growing importance of ESG management, firms are investing more in ESG initiatives as a strategic approach to mitigating downside risk. However, overconfident CEOs, characterized by their
Taehyung Kim, Jaeseog Na
wiley   +1 more source

Patterns of seizure frequency reduction in clinical trial participants with lower baseline seizure frequency

open access: yesEpilepsia, EarlyView.
Abstract Objective Inclusion and exclusion criteria of clinical trials for seizures aim to select representative participants with a high enough seizure frequency to evaluate the efficacy of treatment in a relatively short double‐blind period. To inform the selection of seizure frequency‐based inclusion criteria, we evaluated the association between ...
Wesley T. Kerr   +5 more
wiley   +1 more source

Large-Scale Indoor Camera Positioning Using Fiducial Markers

open access: yesSensors
Estimating the pose of a large set of fixed indoor cameras is a requirement for certain applications in augmented reality, autonomous navigation, video surveillance, and logistics. However, accurately mapping the positions of these cameras remains an unsolved problem.
Pablo García-Ruiz   +4 more
openaire   +6 more sources

Sleep magnetoencephalography enhances detection and source imaging of seizures and fast oscillations in focal cortical dysplasia

open access: yesEpilepsia, EarlyView.
Abstract Objective Focal cortical dysplasia (FCD) causes drug‐resistant epilepsy requiring presurgical evaluation. Invasive electroencephalographic (EEG) studies demonstrate that sleep modulates epileptic activity, including interictal epileptiform discharges (IEDs), fast oscillations (FOs) in the beta (14–40 Hz) and gamma (40–80 Hz) frequency bands ...
Marcel Heers   +13 more
wiley   +1 more source

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