Results 121 to 130 of about 6,248,965 (222)

Complex Spatial Illumination Scheme Optimization of Backscattering Mueller Matrix Polarimetry for Tissue Imaging and Biosensing

open access: yesBiosensors
Polarization imaging and sensing techniques have shown great potential for biomedical and clinical applications. As a novel optical biosensing technology, Mueller matrix polarimetry can provide abundant microstructural information of tissue samples ...
Wei Jiao   +6 more
doaj   +1 more source

The Extreme Polarimeter: Design, Performance, First Results & Upgrades

open access: yes, 2012
Well over 700 exoplanets have been detected to date. Only a handful of these have been observed directly. Direct observation is extremely challenging due to the small separation and very large contrast involved.
Canovas, H.   +6 more
core   +1 more source

Underwater Image Recovery Under the Nonuniform Optical Field Based on Polarimetric Imaging

open access: yesIEEE Photonics Journal, 2018
The underwater imaging could be severely degraded by the scattering media due the backscatter veiling and signal attenuation. Image recovery based on polarization information has shown its efficiency in improving the quality of image in scattering medium,
Haofeng Hu   +4 more
semanticscholar   +1 more source

Optical encryption using photon-counting polarimetric imaging

open access: yesOptics Express, 2015
We present a polarimetric-based optical encoder for image encryption and verification. A system for generating random polarized vector keys based on a Mach-Zehnder configuration combined with translucent liquid crystal displays in each path of the interferometer is developed.
Maluenda Niubó, David   +4 more
openaire   +3 more sources

Measurement of the earthshine polarization in the B, V, R, and I band as function of phase

open access: yes, 2013
The characterization of the polarimetric properties of the planet Earth is important for the interpretation of expected observations and the planning of future instruments.
Bazzon, Andreas   +2 more
core   +1 more source

Polarimetric imaging of biological tissues based on the indices of polarimetric purity

open access: yesJournal of Biophotonics, 2018
We highlight the interest of using the indices of polarimetric purity (IPPs) to the inspection of biological tissues. The IPPs were recently proposed in the literature and they result in a further synthetization of the depolarizing properties of samples.
Albert Van Eeckhout   +10 more
semanticscholar   +1 more source

Polarization of asteroid (387) Aquitania: the newest member of a class of large inversion angle asteroids

open access: yes, 2008
We present new imaging polarimetric observations of two Main Belt asteroids, (234) Barbara and (387) Aquitania, taken in the first half of 2008 using the Dual-Beam Imaging Polarimeter on the University of Hawaii 2.2 meter telescope, located on Mauna Kea,
Alberto Cellino   +22 more
core   +1 more source

Evaluation of intraretinal migration of retinal pigment epithelial cells in age-related macular degeneration using polarimetric imaging

open access: yesScientific Reports, 2017
The purpose of the present study was to evaluate the intraretinal migration of the retinal pigment epithelium (RPE) cells in age-related macular degeneration (AMD) using polarimetry. We evaluated 155 eyes at various AMD stages.
M. Miura   +9 more
semanticscholar   +1 more source

A Polarimetric Wavefront Imager

open access: yes
10 pages, 4 ...
Blochet, Baptiste   +3 more
openaire   +2 more sources

Quantitative polarimetric wavefront imaging

open access: yesOptica
Imaging both the polarization and the wavefront of a light beam is a complex task that typically demands several intensity acquisitions. Furthermore, sequential acquisition solutions are incompatible with the monitoring of ultra-fast processes. As a possible solution for single-shot wavefront and full-Stokes polarimetric imaging, we
Blochet, Baptiste   +3 more
openaire   +2 more sources

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