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Showing 1 to 20 of 24 for “"visible/infrared"”.

  1. Investigation of Electrode Processes and Double Layer Structure Using Visible/infrared Sum Frequency Generation

    Shaw, Scott KevinUniversity of Illinois at Urbana-Champaign2015

    The dependence of single crystal Ag azimuthal rotation on resonant SFG signal line shapes is examined using broad band multiplex SFG. Detailed fitting analysis of acquired spectra is used to extract data as a function of azimuthal rotation angle. Magnitude of non-resonant background, relative phase …

    uiuc Repository record

  2. Deep learning for downscaling GOES-18 measurements for wildfire detection

    Taulbee, Luke, author, Chen, Haonan, advisor, Simske, Steve, committee member, Venkatachalem, Chandrasekar, committee memberColorado State University. Libraries2025

    … like Suomi-NPP, NOAA-20, and NOAA-21 with the Visible Infrared Imaging Radiometer Suite (VIIRS) imager provide high spatial resolution but with limited temporal coverage. To overcome these limitations, this research proposes a deep learning framework for wildfire detection that leverages GOES …

    colostate Repository record

  3. An Investigation Of Sub-Pixel Cloud/clear-Sky Contamination Using Hyper-Spectral AVIRIS Data

    Kaplan, Celil

    … this study, using collocated data from Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and Geostationary Operational Environmental Satellite (GOES) data, sub-pixel cloud and clear-sky contamination were studied over the west coast of Northern California. The hyper-spectral data from …

    nodak Repository record

  4. Condition Assessment of Civil Infrastructure and Materials Using Deep Learning

    Liu, FangyuVirginia Tech2022

    … included five main works: (1) Deep learning and infrared thermography for asphalt pavement crack severity classification. This work focused on longitudinal or transverse cracking. This work first built a dataset with four severity levels (no, low-severity, medium-severity, and high-severity) and …

    vt Repository record

  5. Time Series Analysis of Vegetation Change using Hyperspectral and Multispectral Data

    Wahrman, Spencer A.Monterey, CA; Naval Postgraduate School2012

    … to reflectance and validated against an Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) hyperspectral dataset, also collected during 2011. These data were used along with additional reflectance-corrected multispectral datasets (IKONOS from 2007 and QuickBird from 2006 and 2009) to create …

    nps Repository record

  6. Using Multi-Source Data to Assess the Dynamics of Socioeconomic Development in Africa

    Wang, Xuantong2021

    … development. This research utilizes Visible Infrared Imaging Radiometer Suite (VIIRS) NTL and the Isolation Forest (iForest) machine learning algorithm for more intelligent data processing to capture human activities. I use machine learning and NTL data to map gross domestic product …

    denver Repository record

  7. A feasibility evaluation of x-ray fluorescence emission tomography and x-ray luminescence tomography for real-time assessment of photodynamic therapy

    George, JonathanUniversity of Illinois at Urbana-Champaign2016

    … in singlet form). However, weak penetration of visible, infrared, and UV light into the body to activate the photosensitive compound significantly limits the use of PDT in cancer treatment. Additionally, PDT current lacks an effective dosimetry technique or means of quantifying the number of …

    uiuc Repository record

  8. Low Absorption Liquid Crystal Materials for Midwave Infrared

    Creekmore, Amy

    … of soft matters with applications spanning from visible, infrared, millimeter wave, to terahertz. In addition to direct-view displays and projection displays, liquid crystal is also widely used in adaptive optics, tunable-focus lens, and laser beam steering. Although the visible region has well …

    ucf

  9. Storm-wide precipitation retrievals

    Loparo, Jessica A. (Jessica Ann), 1980-Massachusetts Institute of Technology2004

    … rain gauges, ground based radar systems, and visible, infrared, and passive microwave sensors in orbiting satellites. This research project uses data from the Advanced Microwave Sounding Unit (AMSU-A and AMSU-B) which consists of passive microwave sensors that collect data in the opaque water …

    mit Repository record

  10. Image Chipping with a Common Architecture for Microsensors (CAuS)

    Scalera, Jonathan E.Virginia Tech2001

    … range from acoustic, to seismic, to magnetic, to visible/infrared imagers. A notable shortcoming of these systems is the fact that they are battery powered. The use of a finite power source places an upper limit on the lifespan of such a system. Thus, a major thrust in the development and usage of …

    vt Repository record

  11. Dependence of tropical cirrus clouds on sea surface temperature and consequences for the Archean climate

    Rondanelli, Roberto FMassachusetts Institute of Technology2009

    … TRMM VIRS (Tropical Rainfall Measuring Mission, Visible Infrared Sounder) data. We quantify the effect of methodological choices on the magnitude of the observed correlations between upper level cloud cover and SST. We discuss several methodological choices that might contribute to the relatively …

    mit Repository record

  12. Characterization of Tropical Clouds Using Multi-Satellite Observations

    Anderson, Ricardo2015

    … based passive remote sensing technology in the visible and infrared spectrum, this allows for a more coherent understanding of the dynamic structure of tropical clouds.</p> <p>In this study, we focus on the synergy between Cloudsat and TRRM radar reflectivity data in a CFAD (Contoured Frequency …

    cuny Repository record

  13. On the role of warm rain clouds in the tropics

    Rapp, Anita Denise, author, Kummerow, Christian D., advisorColorado State University. Libraries2008

    … are combined with cloud fraction from the Visible Infrared Scanner (VIRS) to overcome the beam-filling effects and with rainwater estimates from the TRMM Precipitation Radar (PR). This algorithm is novel in that it takes into account the water in the rain and retrieves the LWP due to only …

    colostate Repository record

  14. Remote detection of forest structure in the White Mountains of New Hampshire: An integration of waveform lidar and hyperspectral remote sensing data

    Anderson, Jeanne Elizabeth

    … 2003 was likewise acquired using NASA's Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). USDA Forest Service Northeastern Research Station (USFS NERS) 2001-2003 inventory data was used to define basal area, above-ground biomass, quadratic mean stem diameter and proportional species …

    unh-thes Repository record

  15. Assessing hemlock woolly adelgid induced decline and susceptibility using hyperspectral technologies

    Pontius, Jennifer

    … to a remote sensing platform, NASA's Airborne Visible Infrared Imaging Spectrometer (AVIRIS) was used to create a hemlock abundance map, correctly identifying hemlock dominated pixels (>40% basal area) with 88% accuracy. Reflectance at a chlorophyll sensitive wavelength (683nm), coupled with a …

    unh-thes Repository record

  16. Utility of remote sensing data in retrieval of water quality consituents concentrations in coastal water of New Jersey

    Yu, Ting

    … concentrations from the NASA Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and LIght Detection And Ranging (LIDAR) signals. The approaches used here are based on the unique capabilities of AVIRIS and LIDAR data which can potentially provide a better understanding of how …

    njit Repository record

  17. Respuesta de la vegetación a variaciones climáticas en praderas y sistemas adehesados mediterráneos : metodología de análisis utilizando datos hiperespectrales y multiespectrales = Vegetation reponses to climatic variability in a Mediterranean grassland and savannah : methodologies of analysis using hyperspectral and multispectral data

    García García, MónicaAgronomos2003

    … cinco imágenes hiperespectrales AVIRIS (Airbome Visible-Infrared Imaging Spectrometer) y 110 imágenes multiespectrales AVHRR (Advance Very High Resolution Radiorneter) adquiridas entre 1994-1998 en una zona de vegetación natural en la costa Central de California. Se desarrollaron metodologías de …

    upm Repository record

  18. Early Forest Fire Detection via Principal Component Analysis of Spectral and Temporal Smoke Signature

    Garges, David Casimir2015

    … image processing techniques on multi-spectral (visible & infrared) video. By utilizing principal component analysis (PCA) followed by spatial filtering of principal component images the location of smoke can be accurately identified over a period of exposure time with a given frame capture rate. …

    calpoly Repository record

  19. Analyzing variation in snow albedo across spatial scales of observation in the Alaskan boreal forest

    Fitts, Allyson2024

    … balance due to its high reflectivity in the visible wavelengths. On average, more than 50% of the land area above 20° North latitude is snow covered by December. In a warming climate where temperatures are estimated to rise and less precipitation will fall as snow in high latitude regions, it …

    unr Repository record

  20. An infrared radiometer for millimeter astronomy

    Smith, Graeme John, University of Lethbridge. Faculty of Arts and Science2000

    lethbridge

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