Results 11 to 20 of about 6,696,337 (373)
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 +5 more
core +12 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 +5 more
openalex +7 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 +5 more
europepmc +6 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 +2 more
openaire +4 more sources
On the Design of a Microwave Imaging System to Monitor Thermal Ablation of Liver Tumors
IEEE Journal of Electromagnetics RF and Microwaves in Medicine and Biology, 2021 Thermal ablation treatment of cancer is increasingly adopted in the clinical practice, being minimally invasive and highly specific. However, a significant drawback of the technique is the lack of effective imaging modalities for monitoring the changes ...
Mengchu Wang, L. Crocco, M. Cavagnaro
semanticscholar +1 more source
Sea Spike Suppression Method Based on Optimum Polarization Ratio in Airborne SAR Images
Sensors, 2021 In the condition of ocean observation for high-resolution airborne synthetic aperture radar (SAR), sea spikes will cause serious interference to SAR image interpretation and marine target detection. In order to improve the ability of target detection, it
Yawei Zhao +4 more
doaj +1 more source
SAR Imaging Algorithm of Ocean Waves Based on Optimum Subaperture
Sensors, 2022 Synthetic Aperture Radar (SAR) is widely applied to the field of ocean remote sensing. Clear SAR images are the basis for ocean information acquisitions, such as parameter retrieval of ocean waves and wind field inversion of the ocean surface.
Yawei Zhao +3 more
doaj +1 more source
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
IEEE Access, 2020 This paper focuses on the application of radio tomographic imaging in through-the-wall image reconstruction. By using the simple wireless communication devices, e.g., Wi-Fi cards, the whole building layout can be reconstructed with only the received ...
Qichang Guo +4 more
doaj +1 more source
Review of Metasurface Antennas for Computational Microwave Imaging
IEEE Transactions on Antennas and Propagation, 2020 This article covers recent advances in the fusion of metasurface antenna design and computational imaging (CI) concepts for the realization of imaging systems that are planar, fast, and low cost.
M. Imani +8 more
semanticscholar +1 more source