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 110 for “"Infrared imaging"”.
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Mems approaches in infrared imaging
… novel Microelectromechanical System (MEMS) based infrared detector, that utilizes coefficient of thermal expansion, is discussed. The detector design uses a variety of thermal expansion coefficient materials, including alloys which are connected to ambient through a thermal conducting bridge. The …
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Characterization of infrared imaging systems
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Infrared imaging - case studies and applications
… improvements in the use and applications of infrared (IR) imaging. Compared with traditional imaging in visible light, infrared imaging has abilities to convey significant additional information. Applications in medicine require wavelengths in the range of 0.8 to 25 microns while metrology …
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Fluorescent materials for short-wave infrared imaging
… their transformations over time. Fluorescence imaging is one of the most transformative technologies of modern biomedical imaging as it provides a low cost, high sensitivity method for real-time molecular imaging in vivo. As the scattering and absorption of light through biological tissue …
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Experimental and Computational Methods for Shortwave Infrared Imaging
Optical imaging methods help researchers interrogate complex biological and medical processes with the use of optical light, usually in the visible region (400-700 nm). We explore visualizing the state of liver diseases in living mice using non-invasive near infrared (NIR, 700-900 nm) and shortwave …
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Thermal Detection of Embedded Tumors using Infrared Imaging
… lifetime. Thermography, also known as thermal or infrared imaging, is a procedure to determine if an abnormality is present in the breast tissue temperature distribution, which may indicate the presence of an embedded tumor. In the year 1982, the United States Food and Drug Administration (FDA) …
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Characterization of silicon photovoltaic wafers using polarized infrared imaging
… silicon PV wafers, using an integrated polarized infrared imaging tool capable of both photoelastic (PE) and polarized photoluminescence (PL) imaging. Infrared PE imaging is used to investigate the thermal process-induced residual stress and defect-related stress in mono-crystal silicon PV wafers. …
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Investigation of thermal electric cooler-less microbolometer infrared imaging
The current IR imaging modules developed by BAE SYSTEMS North America use a Thermal Electric Cooler (TEC) to stabilize the Focal Plane Array (FPA). An FPA is an array of microbolometers which are small vanadium oxide elements whose resistances are very sensitive to IR radiation. The ability to run …
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Thermological Studies in Rehabilitation and Rheumatology using Computerised Infrared Imaging
… define the diagnostic value of thermometry and infrared imaging in rehabilitation and rheumatology. Some investigations were designed to characterise either treatment modalities, to clarify the role of temperature measurements as a method for follow-up or treatment monitoring in certain …
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High Resolution Near-Infrared Imaging Observations of the Galactic Centre
Ziel der vorliegenden Doktorarbeit war es, neue Erkenntnisse über die Struktur, Zusammensetzung und Dynamik des zentralen Sternhaufens unserer Milchstraße zu gewinnen. Im Mittelpunkt unserer Analysen stand dabei vor allem die Natur der Konzentration einiger Millionen Sonnenmassen dunkler Materie im …
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Polarization-dependent wavelength-selective structures for multispectral polarimetric infrared imaging
… two-dimensional metallic gratings for infrared imaging are also studied. To complement the simulations, thirty-nine separate infrared optical polarization and spectral filters were fabricated in silicon using the AMI 0.5pm / MOSIS foundry service, and they were characterized using …
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Shortwave infrared imaging and its translation to clinically-relevant designs
… tissue is a central challenge in biomedical imaging, with both preclinical implications and clinical relevance. Using shortwave infrared (SWIR) light enables imaging with high resolution, high sensitivity, and sufficient penetration depth to noninvasively interrogate sub-surface tissue …
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Minimally invasive assessment of lymphatic pumping pressure using near infrared imaging
… counterpart. Recent advances in optical imaging techniques have allowed for more detailed and quantitative evaluations of lymph flow dynamics and mechanism. A rat tail is often used for investigations of lymph flow because of the simple geometry, superficial nature, and disease …
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Design of a Readout Integrated Circuit (ROIC) for Infrared Imaging Applications
There has been a growing interest in using Infrared (IR) imaging systems in various applications ranging from medical diagnosis to military surveillance. The quality of the IR imaging systems depends on 1) the sensitivity of the Focal Plane Arrays (FPA) as the transducer of the electromagnetic wave …
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Breast cancer diagnosis using Fourier transform infrared imaging and statistical learning
… building combinatorial approaches using chemical imaging, histopathology images, machine learning and deep learning. An emerging area of investigation is using spectrometry to perform tissue analysis that utilizes chemical imaging coupled to machine learning to identify spectral signatures …
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Detecting sources of heat loss in residential buildings from infrared imaging
Infrared image analysis was conducted to determine the most common sources of heat loss during the winter in residential buildings. 135 houses in the greater Boston and Cambridge area were photographed, stitched, and tallied to characterize nine major causes of heat loss: window frames, window …
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Develop Sonic Infrared Imaging Nde For Local Damage Assessment In Civil Structures
… materials, tissues and structures. Ultrasonic IR Imaging is a novel NDE technique, which combines a short ultrasonic pulse excitation and infrared imaging to detect defects in materials and structures. In this technique, a sound pulse with a frequency in the range of 20-40kHz is infused on a …
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A Comprehensive Study Of Nonlinear Effects Of Coupling Materials In Ultrasound Infrared Imaging
… for the quality assurance in industry. Sonic Infrared (IR) Imaging technology is a hybrid sensing and imaging technique, in which cracks in an object are caused to become visible in the infrared imaging through frictional heating associated with the application of a short pulse of …
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Near-infrared imaging of artificial enamel caries lesions with a scanning fiber endoscope
Several studies have shown that near-infrared imaging has great potential for detection of dental caries lesions. A miniature scanning fiber endoscope (SFE) operating at near-infrared (NIR) wavelengths was developed and used in this study to test whether the device could be used to discriminate …
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