Sökning: "Hyperspectral"

Visar resultat 1 - 5 av 27 avhandlingar innehållade ordet Hyperspectral.

  1. 1. Hyperspectral Image Generation, Processing and Analysis

    Författare :Hamed Hamid Muhammed; Ewert Bengtsson; Tommy Lindell; Erkki Oja; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Bildanalys; hyperspectral imaging; colour filter mosaics; remote sensing; crop reflectance; surface water quality; disease severity; plant density; linear system of equations; waste water detection; chlorophyll a; suspended paticulate matter; weighted fixed neural networks; weighted incremental neural networks; camera spectrometer; Bildanalys; Image analysis; Bildanalys;

    Sammanfattning : Hyperspectral reflectance data are utilised in many applications, where measured data are processed and converted into physical, chemical and/or biological properties of the target objects and/or processes being studied. It has been proven that crop reflectance data can be used to detect, characterise and quantify disease severity and plant density. LÄS MER

  2. 2. Raman Spectroscopy and Hyperspectral Analysis of Living Cells Exposed to Nanoparticles

    Författare :Linnea Ahlinder; Lars Österlund; Ioan Notingher; Uppsala universitet; []
    Nyckelord :Raman spectroscopy; Hyperspectral analysis; Multivariate data analysis; Nanotoxicology; Graphene oxide; Iron oxide; Titanium dioxide; Cells;

    Sammanfattning : Nanoparticles, i.e. particles with at least one dimension smaller than 100 nm, are present in large quantities in ambient air and can also be found in an increasing amount of consumer products. It is known that many nanomaterials have physicochemical properties that differ from physicochemical properties of the same material in bulk size. LÄS MER

  3. 3. Non-Invasive Monitoring of Architectural Heritage

    Författare :Jenny Hällström; Bebyggelsevård; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; remote sensing; lidar; laser-induced fluorescence; documentation; hyperspectral; non invasive; non destructive; sustainable maintenance; conservation planning; monitoring; Coliseum; architectural conservation; restoration; Övedskloster; deterioration; Lateran Baptistery; stone; brick; thematic mapping; in situ; imaging; biodeteriogens;

    Sammanfattning : The on-site documentation and examination of architectural heritage has presented challenges for traditional analysis methods in the form of, among other things, large complex structures, sites and environmental conditions. In recent years there has been growing interest in assessing progressing deterioration processes and material analysis, with an emphasis on sustainable conservation and maintenance planning. LÄS MER

  4. 4. Exploration of Multivariate Evaluation Techniques in Surface Enhanced Raman Spectroscopy (SERS)

    Författare :Aamer Abbas; Chalmers University of Technology; []
    Nyckelord :carotenoids; surface enhanced raman spectroscopy; orthogonal partial least squares; target orthogonal partial least squares; chemical imaging; OPLS; PLS; cytarbine; raman; hyperspectral; idarubicin; T-OPLS; doxorubicin; lymphocytes; multivariate analysis; 4-mercaptobenzonitrile; internal standard;

    Sammanfattning : .... LÄS MER

  5. 5. Multivariate Measurements and Chemical Imaging of Organic Compounds

    Författare :Johan Engelbrektsson; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Image analysis; Spectroscopy; Hyperspectral; Chemical Imaging; PCA; PLS; SERS; Wavelet Transform; Multivariate analysis;

    Sammanfattning : Chemical imaging is an emerging analytical technique, based on the interplay between, most often, spectroscopic measurements and advanced evaluation methodology. With this we can study the distribution of chemical compounds in different compartments, such as individual cells and pharmaceutical tablets. LÄS MER