Results 91 to 100 of about 2,932,031 (355)

A kind of effective data aggregating method based on compressive sensing for wireless sensor network

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Wireless sensor network (WSN) in the Internet of Things consists of a large number of nodes. The proposal of compressive sensing technology provides a novel way for data aggregation in WSN.
De-gan Zhang   +4 more
semanticscholar   +1 more source

Compressed sensing in fluorescence microscopy

open access: yesProgress in Biophysics and Molecular Biology, 2022
Compressed sensing (CS) is a signal processing approach that solves ill-posed inverse problems, from under-sampled data with respect to the Nyquist criterium. CS exploits sparsity constraints based on the knowledge of prior information, relative to the structure of the object in the spatial or other domains.
Calisesi G.   +6 more
openaire   +6 more sources

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training program

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye   +16 more
wiley   +1 more source

Quantized Compressive Sensing with RIP Matrices: The Benefit of Dithering [PDF]

open access: yesInformation and Inference A Journal of the IMA, 2018
Quantized compressive sensing deals with the problem of coding compressive measurements of low-complexity signals with quantized, finite precision representations, i.e., a mandatory process involved in any practical sensing model.
Chunlei Xu, Laurent Jacques
semanticscholar   +1 more source

Lensless Imaging by Compressive Sensing

open access: yes, 2013
In this paper, we propose a lensless compressive imaging architecture. The architecture consists of two components, an aperture assembly and a sensor. No lens is used. The aperture assembly consists of a two dimensional array of aperture elements.
Huang, Gang   +3 more
core   +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

open access: yesJournal 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   +4 more
wiley   +1 more source

An adaptive approach for integrating primary user behavior in compressive spectrum sensing

open access: yesEURASIP Journal on Wireless Communications and Networking
Compressive sensing (CS) has been widely used to sense the wideband spectrum with fewer measurements by taking advantage of radio spectrum underutilization.
Ahmed A. Tawfik   +2 more
doaj   +1 more source

Model-based Optimization of Compressive Antennas for High-Sensing-Capacity Applications [PDF]

open access: yes, 2015
This paper presents a novel, model-based compressive antenna design method for high sensing capacity imaging applications. Given a set of design constraints, the method maximizes the sensing capacity of the compressive antenna by varying the constitutive
Martinez-Lorenzo, Jose Angel   +1 more
core  

Compressive Sensing for MIMO Radar

open access: yes, 2009
Multiple-input multiple-output (MIMO) radar systems have been shown to achieve superior resolution as compared to traditional radar systems with the same number of transmit and receive antennas.
Petropulu, Athina P.   +2 more
core   +1 more source

Energy dependence of the GAFCHROMIC LD‐V1 in the diagnostic radiographic modalities

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The GAFCHROMIC LD‐V1 radiochromic film is widely used in dosimetry because it can provide high‐resolution two‐dimensional dose distributions without processing. This study aimed to evaluate the response characteristics at different effective energies, from the low‐energy range of mammography to the high‐energy range of computed tomography. Net
Tatsuhiro Gotanda   +9 more
wiley   +1 more source

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