Results 21 to 30 of about 403,617 (202)

Coherence-encoded synthetic aperture for super-resolution quantitative phase imaging

APL Photonics, 2022
Quantitative phase imaging (QPI) has quickly established its role in identifying rare events and screening in biomedicine or automated image data analysis using artificial intelligence.
Miroslav Ďuriš, Petr Bouchal, Katarína Rovenská, Radim Chmelík   +3 more
doaj   +1 more source

Variable Wavefront Curvature Phase Retrieval Compared to Off-Axis Holography and Its Useful Application to Support Intraoperative Tissue Discrimination

Applied Sciences, 2018
Quantitative phase imaging can reveal morphological features without having to stain the biological sample. This property has important implications for intraoperative applications since the time spent during histopathology can be reduced from a few ...
Daniel Claus, Jörg Hennenlotter, Qi Liting, Giancarlo Pedrini, Arnulf Stenzl, Wolfgang Osten   +5 more
doaj   +1 more source

Real time blood testing using quantitative phase imaging. [PDF]

PLoS ONE, 2013
We demonstrate a real-time blood testing system that can provide remote diagnosis with minimal human intervention in economically challenged areas. Our instrument combines novel advances in label-free optical imaging with parallel computing. Specifically,
Hoa V Pham, Basanta Bhaduri, Krishnarao Tangella, Catherine Best-Popescu, Gabriel Popescu   +4 more
doaj   +1 more source

Adaptive dynamic range shift (ADRIFT) quantitative phase imaging

Light: Science & Applications, 2021
Quantitative phase imaging: Sensitivity boost A scheme that significantly enhances the sensitivity of quantitative phase imaging (QPI) could help benefit a range of applications in optical imaging and sensing.
Keiichiro Toda, Miu Tamamitsu, Takuro Ideguchi   +2 more
doaj   +1 more source

Active single-pixel microscopy for quantitative phase imaging [PDF]

EPJ Web of Conferences
In this work, a motionless method to achieve quantitative phase imaging in single-pixel microscopy based on the transport of intensity equation is presented.
Zapata-Valencia Samuel I., Tobon-Maya Heberley, Lancis Jesus, Tajahuerce Enrique   +3 more
doaj   +1 more source

High-resolution impedance mapping using electrically activated quantitative phase imaging

Light: Science & Applications, 2021
Microscopy: phased-in approach puts nanoscale electrical impedance on the map A microscope capable of real-time, label-free analysis of nanoscale structures and their associated electrical properties could find applications in both biology and materials ...
Cristina Polonschii, Mihaela Gheorghiu, Sorin David, Szilveszter Gáspár, Sorin Melinte, Hassaan Majeed, Mikhail E. Kandel, Gabriel Popescu, Eugen Gheorghiu   +8 more
doaj   +1 more source

A common-path digital holographic microscope with a rotatable birefringent prism for synthesizing high-quality quantitative phase images from multi-angle interferograms

Results in Physics, 2021
We propose a simple common-path off-axis interferometric system to perform high-quality quantitative phase imaging based on a rotatable birefringent prism that is placed at the output port of a conventional transmission or reflection microscope.
Hsiao-Ning Weng, Chu-Yu Huang
doaj   +1 more source

Quantitative phase contrast imaging with a nonlocal angle-selective metasurface

Nature Communications, 2022
The authors present an approach to phase imaging by using the non-local optical response of a guided-moderesonator metasurface. They demonstrate that this metasurface can be added to a conventional microscope to enable quantitative phase contrast imaging.
Anqi Ji, Jung-Hwan Song, Qitong Li, Fenghao Xu, Ching-Ting Tsai, Richard C. Tiberio, Bianxiao Cui, Philippe Lalanne, Pieter G. Kik, David A. B. Miller, Mark L. Brongersma   +10 more
doaj   +1 more source

Analysis of Deep Learning-Based Phase Retrieval Algorithm Performance for Quantitative Phase Imaging Microscopy

Sensors, 2022
Quantitative phase imaging has been of interest to the science and engineering community and has been applied in multiple research fields and applications. Recently, the data-driven approach of artificial intelligence has been utilized in several optical
Sarinporn Visitsattapongse, Kitsada Thadson, Suejit Pechprasarn, Nuntachai Thongpance   +3 more
doaj   +1 more source

Single-Shot Smartphone-Based Quantitative Phase Imaging Using a Distorted Grating. [PDF]

PLoS ONE, 2016
Blood testing has been used as an essential tool to diagnose diseases for decades. Recently, there has been a rapid developing trend in using Quantitative Phase Imaging (QPI) methods for blood cell screening.
Zhenyu Yang, Qiwen Zhan
doaj   +1 more source