Results 11 to 20 of about 381,395 (248)

Multispectral Quantitative Phase Imaging Using a Diffractive Optical Network

open access: yesAdvanced Intelligent Systems, 2023
As a label‐free imaging technique, quantitative phase imaging (QPI) provides optical path length information of transparent specimens for various applications in biology, materials science, and engineering.
Che-Yung Shen   +3 more
doaj   +2 more sources

Quantitative phase imaging through an ultra-thin lensless fiber endoscope [PDF]

open access: yesLight: Science & Applications, 2022
Graphical abstract for Quantitative phase imaging through an ultra-thin lensless fiber endoscope.
Jiawei Sun   +8 more
doaj   +2 more sources

Quantitative phase imaging by gradient retardance optical microscopy [PDF]

open access: yesScientific Reports
Quantitative phase imaging (QPI) has become a vital tool in bioimaging, offering precise measurements of wavefront distortion and, thus, of key cellular metabolism metrics, such as dry mass and density.
Jinming Zhang   +4 more
doaj   +2 more sources

Neural phase microscopy with metasurface optics for real-time and nanoscale quantitative phase imaging [PDF]

open access: yesNature Communications
Quantitative phase imaging (QPI) enables non-invasive analysis of transparent specimens across biomedicine, materials science, and neuroscience. However, conventional hardware relies on complex architectures with multi-shot acquisition that preclude ...
Gun-Yeal Lee   +6 more
doaj   +2 more sources

Quantitative Phase Imaging Camera With a Weak Diffuser

open access: yesFrontiers in Physics, 2019
We introduce the quantitative phase imaging camera with a weak diffuser (QPICWD) as an effective scheme of quantitative phase imaging (QPI) based on normal microscope platforms.
Linpeng Lu   +16 more
doaj   +3 more sources

Quantitative phase imaging based on holography: trends and new perspectives [PDF]

open access: yesLight: Science & Applications
In 1948, Dennis Gabor proposed the concept of holography, providing a pioneering solution to a quantitative description of the optical wavefront.
Zhengzhong Huang, Liangcai Cao
doaj   +2 more sources

Using an inexpensive module for Quantitative Phase Imaging [PDF]

open access: yesEPJ Web of Conferences, 2023
We report on modular implementation of digital holography that we recently proposed. The module is designed such that it may be added to an existing brightfield microscope’s image port for digital holographic microscopy functionality. The proposed system
Xin Fan, Muddiman Ryan, Hennelly Bryan
doaj   +1 more source

Variational Hilbert Quantitative Phase Imaging [PDF]

open access: yesScientific Reports, 2020
AbstractUtilizing the refractive index as the endogenous contrast agent to noninvasively study transparent cells is a working principle of emerging quantitative phase imaging (QPI). In this contribution, we propose the Variational Hilbert Quantitative Phase Imaging (VHQPI)—end-to-end purely computational add-on module able to improve performance of a ...
Trusiak, Maciej   +6 more
openaire   +2 more sources

Quantitative Phase and Absorption Contrast Imaging

open access: yesIEEE Transactions on Computational Imaging, 2022
We present an algorithm for coherent diffractive imaging with phaseless measurements. It treats the forward model as a combination of coherent and incoherent waves. The algorithm reconstructs absorption and phase contrast that quantifies the attenuation and the refraction of the waves propagating through an object.
Miguel Moscoso   +3 more
openaire   +3 more sources

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