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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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
Computational Method for Wavefront Sensing Based on Transport-of-Intensity Equation [PDF]
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
doaj +2 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]
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
doaj +2 more sources
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 +5 more sources
Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction [PDF]
Advances in Astronomy, 2013 The cosmic rays differential intensity inside the heliosphere, for energy below 30 GeV/nuc, depends on solar activity and interplanetary magnetic field polarity.
P. Bobik +11 more
doaj +4 more sources
Compressive x-ray phase tomography based on the transport of intensity equation [PDF]
Optics Letters, 2013 We develop and implement a compressive reconstruction method for tomographic recovery of refractive index distribution for weakly attenuating objects in a microfocus X-ray system. This is achieved through the development of a discretized operator modeling both the transport of intensity equation and X-ray transform that is suitable for iterative ...
Tian, Lei +5 more
openaire +5 more sources
Surface Depth-Mapping of Material via the Transport-of-Intensity Equation
Photonics, 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
IEEE 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
Компьютерная оптика, 2022 The transport-of-intensity equation provides a new non-interferometric and non-iterative access to quantitative information about the phase of a light wave by measuring intensity distributions. This equation can be used to implement a simple and accurate
N.G. Stsepuro +5 more
doaj +1 more source