Results 21 to 30 of about 20,927 (220)

Design of Microwave-based Brain Tumor Detection Framework with the Development of Sparse and Low-Rank Compressive Sensing Image Reconstruction

open access: yesInternational Journal of Technology, 2020
Cancer is one of the leading causes of death, and the brain is one of the body’s cancer-prone organs.  The early detection of brain tumors can reduce cancer risk, which is practically assisted and conducted using scanners such as computed ...
Hermawan Rahman Sholeh   +2 more
doaj   +1 more source

Surface Estimation for Microwave Imaging

open access: yesSensors, 2017
Biomedical imaging and sensing applications in many scenarios demand accurate surface estimation from a sparse set of noisy measurements. These measurements may arise from a variety of sensing modalities, including laser or electromagnetic samples of an ...
Douglas Kurrant   +2 more
doaj   +1 more source

A Microwave Three-Dimensional Imaging Method Based on Optimal Wave Spectrum Reconstruction

open access: yesSensors, 2020
Limited by the Shannon–Nyquist sampling law, the number of antenna elements and echo signal data of the traditional microwave three-dimensional (3D) imaging system are extremely high.
Yan Zhang   +3 more
doaj   +1 more source

Multi-Frequency GPR Microwave Imaging of Sparse Targets through a Multi-Task Bayesian Compressive Sensing Approach

open access: yesJournal of Imaging, 2021
An innovative inverse scattering (IS) method is proposed for the quantitative imaging of pixel-sparse scatterers buried within a lossy half-space. On the one hand, such an approach leverages on the wide-band nature of ground penetrating radar (GPR) data ...
Marco Salucci, Nicola Anselmi
doaj   +1 more source

Compressive sensing and sparse antenna arrays for indoor 3-D microwave imaging [PDF]

open access: yes2017 25th European Signal Processing Conference (EUSIPCO), 2017
Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Scott, Simon, Wawrzynek, John
openaire   +1 more source

Origami Microwave Imaging Array: Metasurface Tiles on a Shape‐Morphing Surface for Reconfigurable Computational Imaging

open access: yesAdvanced Science, 2022
Origami is the art of paper folding that allows a single flat piece of paper to assume different 3D shapes depending on the fold patterns and the sequence of folding.
Suresh Venkatesh   +4 more
doaj   +1 more source

Sparse representation-based synthetic aperture radar imaging [PDF]

open access: yes, 2011
There is increasing interest in using synthetic aperture radar (SAR) images in automated target recognition and decision-making tasks. The success of such tasks depends on how well the reconstructed SAR images exhibit certain features of the underlying ...
Cetin, Mujdat   +3 more
core   +1 more source

Resolving single molecule structures with Nitrogen-vacancy centers in diamond. [PDF]

open access: yes, 2015
We present theoretical proposals for two-dimensional nuclear magnetic resonance spectroscopy protocols based on Nitrogen-vacancy (NV) centers in diamond that are strongly coupled to the target nuclei.
Cai, J, Kost, M, Plenio, MB
core   +1 more source

Compressive Sensing Radar Imaging With Convolutional Neural Networks

open access: yesIEEE Access, 2020
In the area of radar imaging at any frequency band from microwave to optics, the technique of compressive sensing (CS) enables high resolution with reduced number of antenna elements and measurements.
Qiao Cheng   +3 more
doaj   +1 more source

Sparsity and adaptivity for the blind separation of partially correlated sources [PDF]

open access: yes, 2014
Blind source separation (BSS) is a very popular technique to analyze multichannel data. In this context, the data are modeled as the linear combination of sources to be retrieved.
Bobin, Jerome   +3 more
core   +4 more sources

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