Results 11 to 20 of about 6,248,965 (222)

Computational polarimetric microwave imaging [PDF]

open access: yesOptics 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

Real-time machine learning-enhanced hyperspectro-polarimetric imaging via an encoding metasurface. [PDF]

open access: yesSci Adv
Light fields carry a wealth of information, including intensity, spectrum, and polarization. However, standard cameras capture only the intensity, disregarding other valuable information.
Zhang L   +11 more
europepmc   +2 more sources

THz Polarimetric Imaging of Carbon Fiber-Reinforced Composites Using the Portable Handled Spectral Reflection (PHASR) Scanner. [PDF]

open access: yesSensors (Basel)
Recent advancements in novel fiber-coupled and portable terahertz (THz) spectroscopic imaging technology have accelerated applications in nondestructive testing (NDT).
Xu K, Harris ZB, Vahey P, Arbab MH.
europepmc   +2 more sources

Polarimetric thermoacoustic imaging

open access: yesJournal of Innovative Optical Health Sciences
Thermoacoustic imaging (TAI) contrast comes from different electrical properties (EPs) of microwave absorption. However, the relationship between the permittivity distribution and the electric field polarization limits the application of TAI in some ...
Jiawei Long   +5 more
doaj   +2 more sources

Integrated Polarimetric Spectral Imaging Sensor Combining Spectral Imaging and Polarization Modulation Techniques. [PDF]

open access: yesSensors (Basel)
Polarimetric spectral imaging systems have unique application advantages in environmental remote sensing, military target recognition, astronomy, medicine, etc., because of their ability to acquire multidimensional information.
Liu Z, Song Z, Li Z, Li L.
europepmc   +2 more sources

Single pixel polarimetric imaging through scattering media. [PDF]

open access: yesOptics Letters, 2020
Polarimetric imaging can provide valuable information about biological samples in a wide range of applications. Detrimental tissue scattering and depolarization however currently hamper in vivo polarization imaging.
K. C. Seow, P. Török, M. Foreman
semanticscholar   +7 more sources

Mueller Matrix Polarimetric Imaging Analysis of Optical Components for the Generation of Cylindrical Vector Beams

open access: yesCrystals, 2020
In this work, we performed a Mueller matrix imaging analysis of two commercial optical components usually employed to generate and manipulate vector beams—a radial polarizer and a liquid-crystal q-plate.
Guadalupe López-Morales   +4 more
doaj   +2 more sources

Real time complete Stokes polarimetric imager based on a linear polarizer array camera for tissue polarimetric imaging. [PDF]

open access: yesBiomed Opt Express, 2017
Tissue polarimetric imaging measures Mueller matrices of tissues or Stokes vectors of the emergent light from tissues (normally using incidence with a fixed polarization state) over a field of view, and has demonstrated utility in a number of surgical ...
Qi J, He C, Elson DS.
europepmc   +2 more sources

Wavelength- or Polarization-Selective Thermal Infrared Detectors for Multi-Color or Polarimetric Imaging Using Plasmonics and Metamaterials. [PDF]

open access: yesMaterials (Basel), 2017
Wavelength- or polarization-selective thermal infrared (IR) detectors are promising for various novel applications such as fire detection, gas analysis, multi-color imaging, multi-channel detectors, recognition of artificial objects in a natural ...
Ogawa S, Kimata M.
europepmc   +2 more sources

A handheld polarimetric imaging device and calibration technique for accurate mapping of terahertz Stokes vectors. [PDF]

open access: yesSci Rep
In recent years, handheld and portable terahertz instruments have been in rapid development for various applications ranging from non-destructive testing to biomedical imaging and sensing.
Harris ZB, Xu K, Arbab MH.
europepmc   +2 more sources

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