Results 81 to 90 of about 721,188 (387)

Effective Wavelet Algorithm for an Automatic Detection of Atrial Fibrillation

Advances in Electrical and Computer Engineering, 2020
Cardiac anomalies are usually marked through irregular cardiac cycles. Atrial fibrillation is given through a rapid beating of the atria, announcing a possible heart failure or stroke. Electrocardiograms are an efficient way of supervising the electric
ARVINTI, B., ISAR, A., COSTACHE, M.
doaj   +1 more source

Enhanced analysis of gating latency in 0.35T MR‐linac through innovative time synchronization of a motion phantom and plastic scintillation detector

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa, Tianjun Ma, Haya Aljuaid, Siyong Kim, William Y. Song   +4 more
wiley   +1 more source

The discrete wavelet transform: wedding the a trous and Mallat algorithms

IEEE Transactions on Signal Processing, 1992
Two separately motivated implementations of the wavelet transform are brought together. It is observed that these algorithms are both special cases of a single filter bank structure, the discrete wavelet transform, the behavior of which is governed by ...
M. Shensa
semanticscholar   +1 more source

Quantitative quality control of 3D water tank using image analysis

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and objective Accurate beam data acquisition using three‐dimensional (3D) water tanks is essential for beam commissioning and quality control (QC) in clinical radiation therapy. This study introduces a novel method for quantitative QC of the system, utilizing MV images and webcam videos.
Yuki Tanimoto, Kohei Sugimoto, Kazunobu Koshi, Akira Hiroshige, Shohei Yoshida, Yoshiki Fujita, Atsuki Nakahira, Daiki Nakanishi, Hirofumi Honda, Masataka Oita   +9 more
wiley   +1 more source

Claustrum Volume Is Reduced in Multiple Sclerosis and Predicts Disability

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The claustrum is a small, thin structure of predominantly gray matter with broad connectivity and enigmatic function. Little is known regarding the impact of claustrum pathology in multiple sclerosis (MS). Methods This study assessed whether claustrum volume was reduced in MS and whether reductions were associated with specific ...
Nicole Shelley, Bradley Judge, Dmitriy A. Yablonskiy, Robert T. Naismith, Matthew R. Brier, Anne H. Cross   +5 more
wiley   +1 more source

Adjustment and Assessment of the Measurements of Low and High Sampling Frequencies of GPS Real-Time Monitoring of Structural Movement

ISPRS International Journal of Geo-Information, 2016
Global Positioning System (GPS) structural health monitoring data collection is one of the important systems in structure movement monitoring. However, GPS measurement error and noise limit the application of such systems. Many attempts have been made to
Mosbeh R. Kaloop, Jong Wan Hu, Emad Elbeltagi   +2 more
doaj   +1 more source

Simulating full-sky interferometric observations

, 2008
Aperture array interferometers, such as that proposed for the Square Kilometre Array (SKA), will see the entire sky, hence the standard approach to simulating visibilities will not be applicable since it relies on a tangent plane approximation that is ...
A. M. M. Scaife, Antoine, Antoine, Antoine, Antoine, Barreiro, Bogdanova, Brink, Bunn, Cornwell, Dahlke, Daubechies, Driscoll, Finkbeiner, Freeden, Freeden, Greisen, Górski, Hinshaw, Hobson, Holschneider, J. D. McEwen, Liu, Ng, Ng, Risbo, Schlegel, Starck, Sweldens, Sweldens, Tenorio, Thompson, Torrésani, Varshalovich, White, Wiaux, Wiaux   +36 more
core   +1 more source

Management and Outcomes in Confirmed or Suspected Acute Symptomatic Seizure: Role of Structured Outpatient Care

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Post‐discharge management and outcomes of acute symptomatic seizures (ASyS) remain underexplored. We analyzed post‐discharge ASM management and outcomes in ASyS patients undergoing continuous EEG (cEEG), including the role of outpatient care through a post‐acute symptomatic seizure (PASS) clinic. Methods We performed a single‐center,
Vineet Punia, MarieElena Byrnes, Nicolas R. Thompson, Neishay Ayub, Clio Rubinos, Sahar Zafar, Adithya Sivaraju, Zhong Ying, Jessica R. Fesler, Stephen Hantus, Post‐Acute Symptomatic Seizure Investigation and Outcomes Network (PASSION) investigators   +10 more
wiley   +1 more source

Quantifying Self-Organization with Optimal Wavelets

, 2012
The optimal wavelet basis is used to develop quantitative, experimentally applicable criteria for self-organization. The choice of the optimal wavelet is based on the model of self-organization in the wavelet tree.
Milovanovic, Milos, Rajkovic, Milan
core   +1 more source

Generalized Morse Wavelets as a Superfamily of Analytic Wavelets [PDF]

IEEE Transactions on Signal Processing, 2012
The generalized Morse wavelets are shown to constitute a superfamily that essentially encompasses all other commonly used analytic wavelets, subsuming eight apparently distinct types of analysis filters into a single common form. This superfamily of analytic wavelets provides a framework for systematically investigating wavelet suitability for various ...
Sofia C. Olhede, Jonathan M. Lilly
openaire   +2 more sources