Results 1 to 10 of about 180,101 (277)

Computational polarimetric microwave imaging [PDF]

Optics Express, 2017
We propose a polarimetric microwave imaging technique that exploits recent advances in computational imaging. We utilize a frequency-diverse cavity-backed metasurface, allowing us to demonstrate high-resolution polarimetric imaging using a single ...
Fromenteze, Thomas, Yurduseven, Okan, Boyarsky, Michael, Gollub, Jonah, Marks, Daniel L., Smith, David R.   +5 more
core   +12 more sources

Imaging Microwave Electric Fields Using a Near-Field Scanning Microwave Microscope [PDF]

, 1998
By scanning a fine open-ended coaxial probe above an operating microwave device, we image local electric fields generated by the device at microwave frequencies.
Ashfaq S. Thanawalla, B. J. Feenstra, C. P. Vlahacos, D. E. Steinhauer, F. C. Wellstood, Harvey S. Newman, S. K. Dutta, Steven M. Anlage, Typeset Using Revtex   +8 more
core   +3 more sources

Continuous-capture microwave imaging. [PDF]

Nat Commun, 2021
AbstractLight-in-flight sensing has emerged as a promising technique in image reconstruction applications at various wavelengths. We report a microwave imaging system that uses an array of transmitters and a single receiver operating in continuous transmit-receive mode. Captures take a few microseconds and the corresponding images cover a spatial range
da Silva FCS, Kos AB, Antonucci GE, Coder JB, Nelson CW, Hati A.   +5 more
europepmc   +6 more sources

Medical imaging with a microwave tomographic scanner [PDF]

IEEE Transactions on Biomedical Engineering, 1990
A microwave tomographic scanner for biomedical applications is presented. The scanner consists of a 64 element circular array with a useful diameter of 20 cm. Electronically scanning the transmitting and receiving antennas allows multiview measurements with no mechanical movement. Imaging parameters are appropriate for medical use: a spatial resolution
L. Jofre, Mark Hawley, A. Broquetas, E. de los Reyes, Miguel Ferrando‐Bataller, A.R. Elias-Fuste   +5 more
openalex   +7 more sources

Microwave imaging techniques for biomedical applications [PDF]

, 1999
Microwaves have been considered for medical applications involving the detection of organ movements and changes in tissue water content. More particularly cardiopulmonary interrogation via microwaves has resulted in various sensors monitoring ventricular
Bolomey, Jean Charles, Broquetas Ibars, Antoni, Geffrin, J M, Joachimowicz, N, Jofre Roca, Lluís, Joisel, A, Mallorquí Franquet, Jordi Joan, Vall-Llossera Ferran, Mercedes Magdalena, Vall·Llossera, M   +8 more
core   +2 more sources

Surface Estimation for Microwave Imaging [PDF]

Sensors, 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 object’s surface.
Kurrant, Douglas, Bourqui, Jeremie, Fear, Elise   +2 more
openaire   +4 more sources

Microwave Imaging of Cotton Bales [PDF]

Sensors, 2008
Modern moisture restoration systems are increasingly capable of adding water to cotton bales. However, research has identified large variations in internal moisture within bales that are not readily monitored by current systems. While microwave moisture sensing systems can measure average bale moisture, this can be deceptive where water is unevenly ...
Mathew G. Pelletier, Edward M. Barnes
openaire   +4 more sources

Medical Applications of Microwave Imaging [PDF]

The Scientific World Journal, 2014
Ultrawide band (UWB) microwave imaging is a promising method for the detection of early stage breast cancer, based on the large contrast in electrical parameters between malignant tumour tissue and the surrounding normal breast-tissue. In this paper, the detection and imaging of a malignant tumour are performed through a tomographic based microwave ...
Zhao Wang, Eng Gee Lim, Yujun Tang, Mark Leach   +3 more
openaire   +3 more sources

Microwave Imaging by Elastic Deformation [PDF]

SIAM Journal on Applied Mathematics, 2011
In this paper, we show that by using microwave measurements at different frequencies and ultrasound localized perturbations to create local changes in the medium it is possible to extend the method developed by Ammari et al. in [SIAM J. Appl. Math., 68 (2008), pp.
Ammari, Habib, Capdeboscq, Yves, de Gournay, Frédéric, Triki, Faouzi, Rozanova-Pierrat, Anna   +4 more
openaire   +3 more sources

Fundamental issues in antenna design for microwave medical imaging applications [PDF]

, 2010
This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Busawon, Krishna, Elsdon, Michael, Fernando, Michael, Smith, Dave   +3 more
core   +1 more source