Results 41 to 50 of about 183,757 (269)
On the Bandwidth of the Plenoptic Function [PDF]
IEEE Transactions on Image Processing, 2012 The plenoptic function (POF) provides a powerful conceptual tool for describing a number of problems in image/video processing, vision, and graphics. For example, image-based rendering is shown as sampling and interpolation of the POF. In such applications, it is important to characterize the bandwidth of the POF.
Minh N. Do +2 more
openaire +4 more sources
T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ±
Sarah J. Wright +10 more
wiley +1 more source
Effective photons in weakly absorptive dielectric media and the Beer–Lambert–Bouguer law
New Journal of Physics, 2014 We derive effective photon modes that facilitate an intuitive and convenient picture of photon dynamics in a structured Kramers–Kronig dielectric in the limit of weak absorption.
A C Judge +5 more
doaj +1 more source
Characterization of graphs with equal bandwidth and cyclic bandwidth
Discrete Mathematics, 2002 The authors provide a characterization of graphs with equal bandwidth and cyclic bandwidth. Certain classes of graphs are shown to have the property.
Peter Che Bor Lam +2 more
openaire +2 more sources
Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias +3 more
wiley +1 more source
Active temporal multiplexing of indistinguishable heralded single photons
Nature Communications, 2016 Deterministically generated single photons are useful for quantum communications, but the processes that create such light are often non-deterministic.
C. Xiong +10 more
doaj +1 more source
Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane +3 more
wiley +1 more source
Temporal characterization of a multi-wavelength Brillouin–erbium fiber laser
New Journal of Physics, 2016 This paper provides the first detailed temporal characterization of a multi-wavelength-Brillouin–erbium fiber laser (MWBEFL) by measuring the optical intensity of the individual frequency channels with high temporal resolution. It is found that the power
Victor Lambin Iezzi +6 more
doaj +1 more source
Sub-60-fs Timing Jitter of a SESAM Modelocked VECSEL
IEEE Photonics Journal, 2013 We present noise measurements of a pulse train emitted from an actively stabilized semiconductor-saturable-absorber-mirror (SESAM) modelocked vertical external cavity surface emitting laser (VECSEL).
V. J. Wittwer +6 more
doaj +1 more source
Micromachines, 2021 In order to make a piezoelectric vibration energy harvester collect more energy on a broader frequency range, nonlinearity is introduced into the system, allowing the harvester to produce multiple steady states and deflecting the frequency response curve.
Zhang Qichang, Yang Yang, Wang Wei
doaj +1 more source