Results 21 to 30 of about 9,244,583 (282)
Quantitative phase imaging based on holography: trends and new perspectives [PDF]
In 1948, Dennis Gabor proposed the concept of holography, providing a pioneering solution to a quantitative description of the optical wavefront.
Zhengzhong Huang, Liangcai Cao
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Digital holography for quantitative phase-contrast imaging
We present a new application of digital holography for phase-contrast imaging and optical metrology. This holographic imaging technique uses a CCD camera for recording of a digital Fresnel off-axis hologram and a numerical method for hologram reconstruction.
Cuche, E. +2 more
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Complex Speckle Illumination for Quantitative Phase Imaging [PDF]
Speckle patterns generated by multimode fibers (MMFs) are often seen as a challenge in imaging, particularly when precise control of illumination is needed [1]. In this work, we focus on a different perspective: speckles from MMFs can be highly beneficial, offering a diversity of random illumination patterns.
A. Ivanina (Aleksandra) +4 more
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Quantitative Phase Imaging: Recent Advances and Expanding Potential in Biomedicine. [PDF]
Nguyen TL +5 more
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Variational Hilbert Quantitative Phase Imaging [PDF]
Abstract Utilizing the refractive index as the endogenous contrast agent to noninvasively study transparent cells is a working principle of emerging quantitative phase imaging (QPI). In this contribution, we propose the Variational Hilbert Quantitative Phase Imaging (VHQPI)—end-to-end purely computational add-on module able to improve
Trusiak, Maciej +6 more
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Using an inexpensive module for Quantitative Phase Imaging [PDF]
We report on modular implementation of digital holography that we recently proposed. The module is designed such that it may be added to an existing brightfield microscope’s image port for digital holographic microscopy functionality. The proposed system
Xin Fan, Muddiman Ryan, Hennelly Bryan
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Quantitative Phase and Absorption Contrast Imaging
We present an algorithm for coherent diffractive imaging with phaseless measurements. It treats the forward model as a combination of coherent and incoherent waves. The algorithm reconstructs absorption and phase contrast that quantifies the attenuation and the refraction of the waves propagating through an object.
Miguel Moscoso +3 more
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Quantitative phase imaging of arthropods [PDF]
Classification of arthropods is performed by characterization of fine features such as setae and cuticles. An unstained whole arthropod specimen mounted on a slide can be preserved for many decades, but is difficult to study since current methods require sample manipulation or tedious image processing.
Shamira, Sridharan +3 more
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Quantitative Phase Imaging Using Deep Learning-Based Holographic Microscope
Digital holographic microscopy enables the measurement of the quantitative light field information and the visualization of transparent specimens. It can be implemented for complex amplitude imaging and thus for the investigation of biological samples ...
Jianglei Di +5 more
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Quantitative Phase Imaging of Thin Film Surface
In this study, the white light diffraction phase microscopy and the generalized Morse wavelet are proposed to achieve practical and precise measurement of a thin film surface. The white light diffraction phase microscopy provides low speckle noise and single-shot measurement, and thus it has been used to produce an image with interference fringes from ...
Tiryaki, E., Kocahan, O., Ozder, S.
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