Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation [PDF]
Sensors, 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
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Three-dimensional fluorescence imaging using the transport of intensity equation. [PDF]
J Biomed Opt, 2019 We propose a nonscanning three-dimensional (3-D) fluorescence imaging technique using the transport of intensity equation (TIE) and free-space Fresnel propagation. In this imaging technique, a phase distribution corresponding to defocused fluorescence images with a point-light-source-like shape is retrieved by a TIE-based phase retrieval algorithm ...
Rajput SK +7 more
europepmc +7 more sources
Computational Method for Wavefront Sensing Based on Transport-of-Intensity Equation
Photonics, 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
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Malaria-Infected Red Blood Cell Analysis through Optical and Biochemical Parameters Using the Transport of Intensity Equation and the Microscope’s Optical Properties [PDF]
Sensors, 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
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On a universal solution to the transport-of-intensity equation [PDF]
Optics Letters, 2020 The transport-of-intensity equation (TIE) is one of the most well-known approaches for phase retrieval and quantitative phase imaging. It directly recovers the quantitative phase distribution of an optical field by through-focus intensity measurements in a non-interferometric, deterministic manner.
Jialin Zhang +4 more
openaire +4 more sources
Low-cost, open-access quantitative phase imaging of algal cells using the transport of intensity equation [PDF]
Royal 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
Transport of intensity equation: a tutorial
Optics and Lasers in Engineering, 2020 Abstract When it comes to “phase measurement” or “quantitative phase imaging”, many people will automatically connect them with “laser” and “interferometry”. Indeed, conventional quantitative phase imaging and phase measurement techniques generally rely on the superposition of two beams with a high degree of coherence: complex interferometric ...
Chao Zuo, Jiaji Li, Jiasong Sun
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Variational Phase Imaging Using the Transport-of-Intensity Equation [PDF]
IEEE Transactions on Image Processing, 2016 We introduce a variational phase retrieval algorithm for the imaging of transparent objects. Our formalism is based on the transport-of-intensity equation (TIE), which relates the phase of an optical field to the variation of its intensity along the direction of propagation.
Emrah Bostan +4 more
openaire +3 more sources
Detection of Cellulose Particles in Transformer Oil Based on Transport of Intensity Equation
Energies, 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]
MicromachinesThis 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
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