Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 52 for “"Phase imaging"”.
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Computational high-throughput phase imaging
Quantitative phase imaging (QPI) is a remarkable modality for its wide range of potentials in studying biological structures without exogenous labeling. QPI utilizes the optical phase delay across the sample, instead of the image intensity, as the image contrast mechanism to provide highly …
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Computational phase imaging for biomedical applications
When a sample is illuminated by an imaging field, its fingerprints are left on the amplitude and the phase of the emerging wave. Capturing the information of the wavefront grants us a deeper understanding of the optical properties of the sample, and of the light-matter interaction. While the …
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Quantitative phase imaging for cellular biology
… to measure a large number of cells. Quantitative phase imaging (QPI) is an emerging field that addresses this need. New quantitative phase imaging modalities have emerged that provide highly sensitive information on cellular growth, motility, dynamics and spatial organization. These parameters can …
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Quantitative phase imaging for blood cytometry
… smear analysis technique known as Diffraction Phase Cytometry (DPC), which is capable of providing the same information on red blood cells as is provided by current clinical analyzers, while rendering additional, currently unavailable parameters on the 2D and 3D morphology of individual red …
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Applications of quantitative phase imaging for pathology
… of a wide-spread screening program. Quantitative phase imaging (QPI) of unstained tissue provides information on the refractive index distribution, or tissue morphology, with nanometer level sensitivity. Subtle morphological changes in both the epithelial and stromal regions of tissue, which are …
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Computational phase imaging based on intensity transport
Light is a wave, having both an amplitude and a phase. However, optical frequencies are too high to allow direct detection of phase; thus, our eyes and cameras see only real values - intensity. Phase carries important information about a wavefront and is often used for visualization of biological …
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High throughput platform for multiscale quantitative phase imaging
Quantitative phase imaging (QPI) yields the spatial phase map of the object’s scattering potential. QPI has enabled unprecedented label-free studies in biomedicine, ranging from cell dynamics and growth to cancer diagnosis and prognosis. The field is currently transitioning from technology-driven …
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Real-time quantitative phase imaging for cell studies
… have been developed to improve contrast in cell imaging, including use of exogenous contrast agents such as fluorescence microscopy, as well as utilizing properties of light-specimen interaction for optics design, to reveal the endogenous contrast, such as phase contrast microscopy (PCM) and …
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Prostate tissue diagnosis using quantitative phase imaging techniques
Restriction data tranferred 2014-07-01T11:20:34-05:00 Original Data Group with Access UIUC Users [automated] Release Date: 2015-08-22 11:49:27 UTC Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system
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Label-free breast histopathology using quantitative phase imaging
… for variation among individuals. Microscopic and imaging tools for extracting new, quantitative biomarkers during breast histopathology are, thus, also desirable. Although a number of new quantitative imaging modalities for diagnostic and prognostic evaluations have been proposed, a key challenge …
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Phase imaging with computational specificity for cell biology applications
Recent advancements in quantitative phase imaging (QPI) and deep learning have opened up an exciting frontier. It has been shown that deep learning methods, with their ability to extract intricate structures from massive raw datasets, can be applied to both interpreting QPI measurements of …
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Simulation of X-ray phase imaging on integrated circuits
A study on the simulation of the X-Ray phase imaging on multi-layered integrated circuits (IC) is presented. Model IC's were created with random nanoscale features. First order Rytov approximation was then used in order to accurately and rapidly create diffraction images. This study lays the …
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Quantitative phase imaging : a study from 2D to 3D
In this thesis, quantitative phase imaging (QPI) techniques including 2D and 3D versions are investigated and presented. With QPI, biophysical and biochemical information of transparent biological micro-specimens can be measured and quantified. 2D quantitative phase maps of cell samples on the one …
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High Resolution Phase Imaging using Transport of Intensity Equation
Quantitative phase Imaging(QPI) has emerged as a valuable tool for imaging specimens with weak scattering and absorbing abilities such as cells and tissues. It is complementary to fluorescence microscopy, as such, it can be applied to unlabelled specimens without the need for fluorescent tagging. …
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Deep learning enabled multiscale optical phase imaging for biomedical applications
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Interferometric-spatial-phase imaging for sub-nanometer three-dimensional positioning
… The method is called Interferometric-Spatial-Phase Imaging (ISPI), and is based on encoding three-dimensional position information in the spatial phase and frequency of interference fringes, viewed with specialized oblique-incidence, dark-field optical microscopes. Alignment detectivity is …
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Label-free Photothermal Quantitative Phase Imaging with Spectral Modulation Interferometry
… can be measured as an optical pathlength or phase change. When a chemical species in a sample absorbs optical energy at a particular wavelength, this absorption raises the temperature at these points in the sample via the photothermal effect. This temperature change changes the local …
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Quantitative phase imaging: advances to 3D imaging and applications to neuroscience
… thesis provides a brief overview of quantitative phase imaging (QPI) methods along with applications and advances made on them. First, spatial light interference microscopy (SLIM) is introduced as a QPI method extensively used in this thesis. Using this setup, an application of QPI in neuroscience …
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High-sensitivity Full-field Quantitative Phase Imaging Based on Wavelength Shifting Interferometry
Quantitative phase imaging (QPI) is a category of imaging techniques that can retrieve the phase information of the sample quantitatively. QPI features label-free contrast and non-contact detection. It has thus gained rapidly growing attention in biomedical imaging. Capable of resolving biological …
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Multidisciplinary research in Raman spectroscopy, phase imaging and their applications in heat transfer
… on the development of Raman spectroscopy and phase imaging and demonstrates their applications to micro-to-nanoscale heat transfer. Due to the superior spatial resolution and the non-contact nature, micro-Raman spectroscopy has been widely applied for local temperature measurement. However, …
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