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Multigrid Algorithm Based on Transport of Intensity Equation
ACTA PHOTONICA SINICA, 2013Multigrid algorithm based on the transport of intensity equation is researched to retrieval phase information from the intensity measurement.Given initial value and stared from the coarsest grid,a solution is obtained by calculating;regarded it as the finest initial value,an approximate solution is obtained by calculating;then its residual is ...
刘红 LIU Hong +3 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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Transport of intensity equation from a single intensity image via deep learning
Optics and Lasers in Engineering, 2020Abstract The transport of intensity equation (TIE) is an ideal candidate for phase imaging with partially coherent illuminations. TIE has the advantages of simplicity in phase calculation due to its closed-form solution and no requirement for a reference beam and phase unwrapping due to its non-interferometric nature.
Kaiqiang Wang +5 more
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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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Topography retrieval using different solutions of the transport intensity equation
Journal of the Optical Society of America A, 2010The topography of a phase plate is recovered from the phase reconstruction by solving the transport intensity equation (TIE). The TIE is solved using two different approaches: (a) the classical solution of solving the Poisson differential equation and (b) an algebraic approach with Zernike functions.
Shirly V, Pinhasi +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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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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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 phase imaging with error correction using transport of phase equation
Ultra-High-Definition Imaging Systems IV, 2021The transport of intensity equation (TIE) has been widely applied to phase imaging. A variety of methods for solving the TIE have been proposed. One of the most popular methods is an FFT-based method, which is simple and fast. However, this method has a strict restriction that the intensity of the object is assumed to be uniform.
Haowen Zhou, Partha P. Banerjee
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