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Multiplicative Reconstruction Based on the Transport of Intensity Equation
2018In order to effectively recover the phase information of the object and reconstruct the three-dimensional shape of the object, a multiplicative reconstruction based on the transport of intensity equation (TIE) is proposed. Firstly, combining with the relationship between the light field moment imaging and the TIE, the phase information and the first ...
Hong Cheng +5 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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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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Phase retrieval by using the transport-of-intensity equation with Hilbert transform
Optics Letters, 2016Phase recovery by solving the transport-of-intensity equation (TIE) is a non-iterative and non-interferometric phase retrieval technique. From solving the TIE with conventional, one partial derivative and Hilbert transform methods for both the periodic and aperiodic samples, we demonstrate that the Hilbert transform method can provide the smoother ...
Wei-Shuo, Li +6 more
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Fully-phase encryption using transport of intensity equation
Imaging and Applied Optics Congress, 2020A new method of optical image encryption based on transport of intensity equation has been proposed. The main drawback of the conventional double random phase encoding based optical encryption is to record complex information, which can be alleviated with transport of intensity equation.
Alok K. Gupta +2 more
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Two-Wavelength Transport of Intensity Equation for Phase Unwrapping
2016A novel method based on two-wavelength transport of intensity equation (TW-TIE) is proposed for phase unwrapping under large-step discontinuities condition. With a wrapped phase obtained by interferometry setup, two different wavelength illuminations are used to obtain two different intensity images, then TW-TIE is applied to phase unwrapping ...
Cheng Zhang +8 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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Application of the transport of intensity equation in determination of nonlinear refractive index
Applied Optics, 2014We investigate the determination of nonlinear refractive index n(2), based on solving the transport of intensity equation (TIE) in conjunction with a pump-probe technique. As the pump and probe beams propagate through a sample, the pump-induced refractive index variations in the sample change the phase distribution of the probe beam. Using two recorded
Roghayeh, Yazdani +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. MartÃnez-Carranza +2 more
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An orthogonal direction iterative algorithm of the transport-of-intensity equation
Optics and Lasers in Engineering, 2019Abstract Phase retrieval based on the transport-of-intensity equation (TIE) illuminated with incoherent light reveals the advantages of simplicity and practicability, but the corresponding algorithm still needs accuracy improvement and applicability extension.
Jiaosheng Li +6 more
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