| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bialkowski, Konstanty
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Mathematical model of common-mode sources in long-cable-fed adjustable speed drivescitations
- 2021Multiple open ended probe for spatio-temporal dielectric spectroscopy: application to evaporative dewateringcitations
- 2020Implantable sensor for detecting changes in the loss tangent of cerebrospinal fluidcitations
- 2019Wearable electromagnetic head imaging using magnetic-based antenna arrayscitations
- 2019Compact implantable antennas for the cerebrospinal fluid monitoringcitations
- 2018Fabrication and characterization of flexible polymer iron oxide composite substrate for the imaging antennas of wearable head imaging systemscitations
- 2018Flexible antenna on high permeability substrate for electromagnetic head imaging systemscitations
- 2017Closed-form equation to estimate the dielectric properties of biological tissues as a function of agecitations
- 2017Miniaturizing electromagnetic invisibility cloaks using double near zero slabs
- 2017Skin tissue characterization of canine at microwave and millimeter-wave frequencies
- 2017Concealment with near-zero materials and their sensitivity to non-zero material parameters
- 2017Size reduction of electromagnetic devices using double near zero materialscitations
- 2017Half-sized cylindrical invisibility cloaks using double near zero slabs with realistic material size and propertiescitations
- 2016Design and experimental evaluation of a non-invasive microwave head imaging system for intracranial haemorrhage detectioncitations
- 2014Convex optimization approach for stroke detection in microwave head imagingcitations
- 2006Design of complementary UWB printed monopole antennas using simple formulascitations
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document
Convex optimization approach for stroke detection in microwave head imaging
Abstract
Convex optimization provides a method of minimization of a convex objective function subject to a convex domain imposed upon it by the problem. For microwave imaging in medical applications, such as head imaging, this technique is seldom investigated. In this paper, a microwave-based head imaging method based on convex optimization is presented. Convex optimization is used to successfully estimate the distribution of relative permittivity of the imaged objects at different directions and thus to improve the quality of the obtained microwave image. The obtained results using 32 antennas surrounding a realistic head model compare favorably with the images from using the traditional microwave head imaging algorithm, which assumes a certain fixed average permittivity for the whole imaged head. The results show that the target representing a bleeding inside the head is properly recovered using the proposed optimization despite using wide range of initial average permittivity values. However, the quality of images produced using the traditional approach depends strongly on the assumed average permittivity.