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High Capacity Steganography via Optical Phase-Encoding and Transport of Intensity Equation [PDF]

open access: goldIEEE 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   +2 more sources

A Fourier-based Solving Approach for the Transport of Intensity Equation without Typical Restrictions [PDF]

open access: gold, 2018
The Transport-of-Intensity equation (TIE) has been proven as a standard approach for phase retrieval. Some high efficiency solving methods for the TIE, extensively used in many works, are based on a Fourier-Transform (FT).
Mehrabkhani, Soheil   +2 more
core   +3 more sources

Transport of Intensity Equation Microscopy for Dynamic Microtubules [PDF]

open access: green, 2017
Microtubules (MTs) are filamentous protein polymers roughly 25 nm in diameter. Ubiquitous in eukaryotes, MTs are well known for their structural role but also act as actuators, sensors, and, in association with other proteins, checkpoint regulators. The thin diameter and transparency of microtubules classifies them as sub-resolution phase objects, with
Q. Tyrell Davis
openaire   +3 more sources

Latitudinal Dependence of Cosmic Rays Modulation at 1 AU and Interplanetary Magnetic Field Polar Correction [PDF]

open access: yesAdvances 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

Variational Phase Imaging Using the Transport-of-Intensity Equation [PDF]

open access: yesIEEE 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   +4 more sources

Transport of intensity equation based photon-counting phase imaging

open access: goldOSA Continuum, 2020
In low light conditions, such as in astronomy and non-invasive bio-imaging applications, the imaging performance is mostly degraded due to noise. In this paper, we demonstrate a transport of intensity equation based technique that uses photon-counting phase imaging.
Alok K. Gupta   +2 more
openaire   +2 more sources

Dissecting the Opposing Roles of Thermal Intensity and Growing Degree Days in Regulating Spring Wheat Protein Content [PDF]

open access: yesPlants
Protein content (PC) stability is crucial for wheat quality. This study utilized partial least squares regression and structural equation modeling to distinguish the physiological effects of “thermal intensity” versus “thermal accumulation” on spring ...
Xuan Lei   +13 more
doaj   +2 more sources

Multi-filter transport of intensity equation solver with equalized noise sensitivity

open access: goldOptics Express, 2015
Phase retrieval based on the Transport of Intensity Equation (TIE) has shown to be a powerful tool to obtain the phase of complex fields. Recently, it has been proven that the performance of TIE techniques can be improved when using unequally spaced measurement planes.
J, Martinez-Carranza   +2 more
openaire   +3 more sources

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