Results 71 to 80 of about 2,457,520 (174)

Fast Localization of Impact Damage on Woven CFRP Based on Sparse Microwave Imaging [PDF]

open access: yes, 2020
Microwave open-ended waveguide scanning has been proved to be a promising NDT technique for imaging of woven carbon fiber reinforced plastic (CFRP) with impact damages. However, it uses a conventional C-scan technique, which is excessively time-consuming and therefore it is not practical for defect detection in a large area.
Sutthaweekul, Ruslee, Tian, Gui Yun
openaire   +1 more source

Voxel selection in fMRI data analysis based on sparse representation [PDF]

open access: yes, 2009
Multivariate pattern analysis approaches toward detection of brain regions from fMRI data have been gaining attention recently. In this study, we introduce an iterative sparse-representation-based algorithm for detection of voxels in functional MRI (fMRI)
Namburi, Praneeth   +5 more
core   +1 more source

Investigation of microwave antennas in lossy media for medical applications [PDF]

open access: yes
For several years, microwave engineers have dreamed of using non-ionising electromagnetic waves in medical imaging applications. The rate of evolution of microwave techniques for medical application has been immense and shows no signs of relenting. Since
Fdo, Michael J.
core  

Multiple feature-enhanced SAR imaging using sparsity in combined dictionaries [PDF]

open access: yes, 2013
Nonquadratic regularization-based image formation is a recently proposed framework for feature-enhanced radar imaging. Specific image formation techniques in this framework have so far focused on enhancing one type of feature, such as strong point ...
Çetin, Müjdat   +2 more
core   +1 more source

Investigation of resolution limits for indirect microwave holographic imaging [PDF]

open access: yes, 2012
This work describes how indirect holography which has previously been applied to the determination of antenna radiation patterns can be adapted for the imaging of passive objects.
Yurduseven, Okan   +6 more
core   +1 more source

Experimental Analysis on Effectiveness of Confocal Algorithm for Radar Based Breast Cancer Detection [PDF]

open access: yes, 2012
Breast cancer is one of the most commonly diagnosed cancers in females in UK [1]. Early breast cancer detection which has recently been gaining a lot of consideration within the research community and the most important for a quick and effective ...
ABDUL-SATTAR, ZUBAIDA
core  

Fast, Robust, and Low-Cost Microwave Imaging of Multiple Non-Metallic Pipes

open access: yes, 2021
The use of non-metallic pipes and composite components that are low-cost, durable, light-weight, and resilient to corrosion is growing rapidly in various industrial sectors such as oil and gas industries in the form of non-metallic composite pipes. While
Yuki Gao, Maryam Ravan, Reza K. Amineh
core   +1 more source

An Initial Assessment of a Microwave Imaging System to Monitor Microwave Ablation Treatments

open access: yes, 2023
An Initial Assessment of a Microwave Imaging System to Monitor Microwave Ablation ...
Cavagnaro Marta   +4 more
core   +1 more source

Compressive sensing for stroke detection in microwave-based head imaging

open access: yes, 2014
The theory of compressive sensing (CS) provides a method to recover an unknown sparse signal (data) from limited measurements by solving a constrained convex optimization problem.
A.M. Abbosh   +3 more
core   +1 more source

Hierarchical Bayesian sparse image reconstruction with application to MRFM [PDF]

open access: yes, 2008
This paper presents a hierarchical Bayesian model to reconstruct sparse images when the observations are obtained from linear transformations and corrupted by an additive white Gaussian noise. Our hierarchical Bayes model is well suited to such naturally
Hero, Alfred O.   +2 more
core   +1 more source

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