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 247 for “"Multispectral"”.
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Multispectral Imaging of Skin Oxygenation
This research focuses on the investigation of a multispectral imaging technique for quantitative measurement of skin tissue oxygen saturation (StO2). Oxygen saturation is the percentage of oxygen carried in the blood over the total oxygen carrying capacity of blood. Skin StO2 is an important …
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Multispectral segmentation of whole-brain MRI
Magnetic Resonance Imaging (MRI) is a widely used medical technology for diagnosis and detection of various tissue abnormalities, tumor detection, and in evaluation of either residual or recurrent tumors. This thesis work exploits MRI information acquired on brain tumor structure and physiological …
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Multispectral Metamaterial Detectors for Smart Imaging
… and demonstrate the first deep-subwavelength multispectral infrared detector using an ultra-thin type-II superlattice (T2-SL) detector coupled with a metamaterial absorber with 7X enhanced quantum efficiency. We also identify useful versus non-useful absorption through a combination of …
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Deriving bathymetry from multispectral and hyperspectral imagery
… operations. Bathymetry from remote sensing with multispectral or hyperspectral imagery provides an opportunity to acquire water depth data faster than traditional hydrographic survey methods without the need to deploy a hydrographic survey vessel. It also provides a means of collecting …
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Robust compression of multispectral remote sensing data
… and robust non-reversible coding algorithms for multispectral remote sensing data. Although many efficient non-reversible coding algorithms have been proposed for such data, their application is often limited due to the risk of excessively degrading the data if, for example, changes in sensor …
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Quantitative Multispectral Biosensing and Imaging Using Plasmonic Crystals
… can be leveraged in sensing applications using multispectral analysis protocols. This thesis describes two new types of low-cost plasmonic crystal sensors formed by soft UV nanoimprint lithography that enable quantitative multispectral analysis of surface binding events in spectroscopic and …
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Cloud analysis using NOAA-7 AVHRR multispectral imagery
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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Multispectral Image Labeling for Unmanned Ground Vehicle Environments
Described is the development of a multispectral image labeling system with emphasis on Unmanned Ground Vehicles(UGVs). UGVs operating in unstructured environments face significant problems detecting viable paths when LIDAR is the sole source for perception. Promising advances in computer vision and …
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Imaging of mice and men; adventures in multispectral imaging
… light source we investigate the application of multispectral imaging in early stage prion disease. By analysis of the protein conformation sensitivity of the mid infrared spectra (with particular interest in the Amide I band) we seek to identify structurally relevant markers in a mouse model …
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Multispectral canopy reflectance and digital imaging to determine maturity
Soybean breeders and producers may benefit from approaches that can quickly and quantitatively measure soybean developmental stages. To better predict developmental stages, seasonal dynamics of soybean canopies were characterized using canopy reflectance and digital imaging tools. Field experiments …
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Multispectral Imaging Techniques for Monitoring Vegetative Growth and Health
Electromagnetic radiation reflectance increases dramatically around 700 nm for vegetation. This increase in reflectance is known as the vegetation red edge. The NDVI (Normalized Difference Vegetation index) is an imaging technique for quantifying red edge contrast for the identification of …
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TACTILE AND MULTISPECTRAL BIMODAL IMAGING FOR BREAST CANCER RISK ASSESSMENT
… proposed bimodal imaging system has tactile and multispectral imaging capabilities. Tactile imaging modality characterizes tumors by esti-mating their depth, size, and stiffness, along with the Tactile Index. Multispectral imaging modality identifies breast asymmetry, texture, and inflammation …
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Face Shape and Reflectance Acquisition using a Multispectral Light Stage
… and reflectance acquisition device called the “Multispectral Light Stage”. This device can capture highly detailed facial geometry (down to the level of skin pores detail) and Multispectral reflectance map which can be used to estimate biophysical skin parameters such as the distribution of …
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Development of Applications and Quantitative Frameworks for Multispectral Optoacoustic Tomography
Page xxxi is misnumbered as page ii.
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Multispectral plasmon enhanced quantum dots in a well infrared photodetectors
… are discussed: 1) High temperature operation, 2) Multispectral detection. There are two parts to this dissertation. In the first part, an alternate structure with an improved operating temperature and thicker active region is presented. Traditionally, DWELL detectors use InAs quantum dots embedded …
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