Results 11 to 20 of about 184,235 (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 +5 more
core +10 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 +5 more sources
Cosmic microwave background images [PDF]
IEEE Signal Processing Magazine, 2010 We aim to present a tutorial on the detection, parameter estimation and statistical analysis of compact sources (far galaxies, galaxy clusters and Galactic dense emission regions) in cosmic microwave background observations. The topic is of great relevance for current and future cosmic microwave background missions because the presence of compact ...
Herranz, Diego, Vielva, Patricio
openaire +4 more sources
Monitoring thermal ablation via microwave tomography. An ex vivo experimental assessment [PDF]
, 2018 Thermal ablation treatments are gaining a lot of attention in the clinics thanks to their reduced invasiveness and their capability of treating non-surgical patients.
Cavagnaro, M. +4 more
core +1 more source
Scattering-Point Topology for Few-Shot Ship Classification in SAR Images
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Synthetic aperture radar (SAR) has emerged as a critical technology for detecting and classifying objects, such as ships, in challenging environments.
Yipeng Zhang +3 more
doaj +1 more source
Imaging of microwave fields using ultracold atoms [PDF]
, 2010 We report a technique that uses clouds of ultracold atoms as sensitive, tunable, and non-invasive probes for microwave field imaging with micrometer spatial resolution.
Böhm C. +5 more
core +2 more sources
Multifeature Fusion Neural Network for Oceanic Phenomena Detection in SAR Images
Sensors, 2019 Oceanic phenomena detection in synthetic aperture radar (SAR) images is important in the fields of fishery, military, and oceanography. The traditional detection methods of oceanic phenomena in SAR images are based on handcrafted features and detection ...
Zhuofan Yan +5 more
doaj +1 more source
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 +8 more
core +1 more source
Scattering-Point-Guided RPN for Oriented Ship Detection in SAR Images
Remote Sensing, 2023 Ship detection in synthetic aperture radar (SAR) images has attracted widespread attention due to its significance and challenges. In recent years, numerous detectors based on deep learning have achieved good performance in the field of SAR ship ...
Yipeng Zhang +3 more
doaj +1 more source
Airborne SAR Imaging Algorithm for Ocean Waves Based on Optimum Focus Setting
Remote Sensing, 2019 Ocean waves are the richest texture on the sea surface, from which valuable information can be inversed. In general, the Synthetic Aperture Radar (SAR) images of surface waves will inevitably be distorted due to the intricate motion of surface waves ...
Xiangfei Wei +4 more
doaj +1 more source