Results 1 to 10 of about 101,472 (112)

Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation [PDF]

open access: yesSensors, 2022
A simple method for reconstructing the spatial parameters of a laser beam, based on the transport-of-intensity equation, is presented. Registration of cross-section intensity distributions in several planes was carried out using a single CMOS camera. The
Michael Kovalev   +5 more
doaj   +4 more sources

Malaria-Infected Red Blood Cell Analysis through Optical and Biochemical Parameters Using the Transport of Intensity Equation and the Microscope’s Optical Properties [PDF]

open access: yesSensors, 2019
The accuracy, reliability, speed and cost of the methods used for malaria diagnosis are key to the diseases’ treatment and eventual eradication. However, improvement in any one of these requirements can lead to deterioration of the rest due to their ...
Marcel Akpa Agnero   +6 more
doaj   +4 more sources

Low-cost, open-access quantitative phase imaging of algal cells using the transport of intensity equation [PDF]

open access: yesRoyal Society Open Science, 2020
Phase microscopy allows stain-free imaging of transparent biological samples. One technique, using the transport of intensity equation (TIE), can be performed without dedicated hardware by simply processing pairs of images taken at known spacings within ...
Stephen D. Grant   +4 more
doaj   +2 more sources

Computational Method for Wavefront Sensing Based on Transport-of-Intensity Equation

open access: yesPhotonics, 2021
Recently the transport-of-intensity equation as a phase imaging method turned out as an effective microscopy method that does not require the use of high-resolution optical systems and a priori information about the object.
Iliya Gritsenko   +4 more
doaj   +3 more sources

Detection of Cellulose Particles in Transformer Oil Based on Transport of Intensity Equation

open access: yesEnergies, 2022
Cellulose particles are among the aging products of the insulating paper that are used in power transformers. Too many cellulose particles can cause transformer accidents.
Hao Pan   +7 more
doaj   +3 more sources

Electroosmosis and Solute Diffusion Transport of Maxwell Fluid Through a Polyelectrolyte-Grafted Microchannel with Modulated Charged Surfaces [PDF]

open access: yesMicromachines
This study investigates the time-periodic electroosmotic flow and solute transport of Maxwell fluid in a parallel microchannel with modulated surface charges.
Yin Shang, Fengqin Li, Chunhong Yang
doaj   +2 more sources

Surface Depth-Mapping of Material via the Transport-of-Intensity Equation

open access: yesPhotonics, 2022
We present a new approach for a surface characterization based on the TIE method combined with the SEM. Experimental verification is carried out on the example of characterization of a crater on the surface of monocrystalline silicon (111).
Nikita Stsepuro   +5 more
doaj   +1 more source

High Capacity Steganography via Optical Phase-Encoding and Transport of Intensity Equation

open access: yesIEEE Photonics Journal, 2021
A high capacity steganography based on optical phase-encoding and transport of intensity equation (TIE) is proposed. The secret image is phase-encoded and then attached a real-valued host image to form a complex light field, which diffracts a short ...
Chenggong Zhang   +4 more
doaj   +1 more source

Real-Time Phase Retrieval Based on Cube-Corner Prisms Single Exposure

open access: yesPhotonics, 2022
The phase retrieval method based on the Transport of Intensity Equation needs to record the light intensity information on two or more planes perpendicular to the optical axis propagating along the optical axis. Usually, a single CCD camera is moved back
Hong Cheng   +3 more
doaj   +1 more source

ContransGAN: Convolutional Neural Network Coupling Global Swin-Transformer Network for High-Resolution Quantitative Phase Imaging with Unpaired Data

open access: yesCells, 2022
Optical quantitative phase imaging (QPI) is a frequently used technique to recover biological cells with high contrast in biology and life science for cell detection and analysis.
Hao Ding   +6 more
doaj   +1 more source

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