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Transport of intensity equation-based terahertz lensless full-field phase imaging
Optics Letters, 2021Terahertz (THz) phase imaging is widely spreading in various scenarios, among which full-field phase distributions are commonly retrieved by digital holography or ptychography. In this Letter, the transport of the intensity equation reconstruction method is applied into the THz band.
Lu Rong +6 more
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Phase Retrieval Using the Transport-of-Intensity Equation
2009 Fifth International Conference on Image and Graphics, 2009The transport-of-intensity equation describes the internal relationship between the intensity and phase distribution while wave is propagating in the mobile space. So the phase distribution can be solved by the use of the equation. It is an important measurement of non-interferometry.
Hong Cheng +3 more
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Two-dimensional phase unwrapping using the transport of intensity equation
Applied Optics, 2016We report a method for two-dimensional phase unwrapping based on the transport of intensity equation (TIE). Given a wrapped phase profile, we generate an auxiliary complex field and propagate it to small distances to simulate two intensity images on closely spaced planes.
Neeraj, Pandey +2 more
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Quantitative Fresnel Lorentz microscopy and the transport of intensity equation
Ultramicroscopy, 2006Imaging of the magnetic structure of thin films by the Fresnel mode of Lorentz microscopy has been re-evaluated in terms of the Ampérian current density within a sample. The conditions for which this imaging can be treated as linear are discussed for quantitative application.
S, McVitie, M, Cushley
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Phase Extracting Imaging by Stacking Defocus Transport of Intensity Equation
Digital Holography and 3-D Imaging 2022, 2022The investigation of cells was performed using TIE. The phase imaging using a stack of low defocus intensity images has shown better results of the cell edge and shape comparing with the traditional one.
Suwan Plaipichit +3 more
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Optimum plane selection for transport-of-intensity-equation-based solvers
Applied Optics, 2014Deterministic single beam phase retrieval techniques based on the transport of intensity equation (TIE) use the axial intensity derivative obtained from a series of intensities recorded along the propagation axis as an input to the TIE-based solver. The common belief is that, when reducing the error present in the axial intensity derivative, there will
J, Martinez-Carranza +2 more
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Optimum phase retrieval using the transport of intensity equation
SPIE Proceedings, 2014The Transport of Intensity Equation (TIE) relates linearly the phase of an object to the intensity distribution in the Fresnel region and can be used as a phase retrieval technique. The key element in a TIE based solver is the calculation of the axial intensity derivative.
J. Martínez-Carranza +2 more
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The transport of intensity equation and partially coherent fields
Biomedical Optics and 3-D Imaging, 2012We examine the physical meaning of the phase recovered from the transport of intensity equation (TIE) with partially coherent illumination and verify experimentally a modification of the TIE which removes effects of nonuniform illumination from measurements of sample thickness.
Jonathan C. Petruccelli +2 more
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Phase measurement of atomic resolution image using transport of intensity equation
Microscopy, 2005Since the Transport Intensity Equation (TIE) has been applied to electron microscopy only recently, there are controversial discussions in the literature regarding the theoretical concepts underlying the equation and the practical techniques to solve the equation.
Kazuo, Ishizuka, Brendan, Allman
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Transport of intensity equation: noninterferometic phase imaging and diffraction tomography
OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), 2021In this talk, we provide an overview of the basic principle, research fields, and representative applications of transport of intensity equation, focusing particularly on optical imaging and microscopy.).
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