Search for dissertations about: "Reflectance"

Showing result 1 - 5 of 158 swedish dissertations containing the word Reflectance.

  1. 1. RHEED and RD studies of III-V semiconductors

    University dissertation from Solid State Physics

    Author : Bert Junno; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; reflectance anisotropy; reflectance difference; RHEED; reflection high energy electron diffraction; III-V semiconductors; GaP; GaAs; InP; InAs; reflection high energy electron diffraction RHEED ; reflectance difference RD ; phase diagrams; surface reconstructions; Fysicumarkivet A:1996:Junno; Halvledarfysik; CBE GaAs; Semiconductory physics; chemical beam epitaxy; surface phase diagrams; RDS; RD; RAS;

    Abstract : The published papers and introductory part of this thesis concentrate on the in-situ characterization of (001) surfaces of GaAs, InAs, InP and GaP. The experimental tools used in these studies were a chemical beam epitaxy (CBE) machine equipped with a reflection high energy electron (RHEED) system and a reflectance difference (RD) optical set-up. READ MORE

  2. 2. Quantitative diffuse reflectance spectroscopy myocardial oxygen transport from vessel to mitochondria

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Tobias Lindbergh; Tomas Strömberg; Henrik Ahn; Marcus Larsson; Lise Lyngsnes Randeberg; [2009]

    Abstract : In the field of biomedical optics, diffuse reflectance spectroscopy (DRS) is a frequently used technique for obtaining information about the optical properties of the medium under investigation. The method utilizes spectral difference between incident and backscattered light intensity for quantifying the underlying absorption and scattering processes that affects the light-medium interaction. READ MORE

  3. 3. Image Analysis using the Physics of Light Scattering

    University dissertation from Stockholm : Numerisk analys och datalogi

    Author : Peter Nillius; KTH.; [2004]
    Keywords : computer vision; shading; illumination; reflectance; image irradiance;

    Abstract : Any generic computer vision algorithm must be able to copewith the variations in appearance of objects due to differentillumination conditions. While these variations in the shadingof a surface may seem a nuisance, they in fact containinformation about the world. READ MORE

  4. 4. Surface Characterization using Radiometric and Fourier Optical Methods

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Peter Hansson; Uppsala universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Radiometry; Fourier Optics; Surface Characterization; Topography; Reflectance; Color; Paper; Printing; Print quality; Gloss; Light scattering; Shape from shading; Photometric stereo; Optical motion compensation; Filtering; Wiener filter; Lamberts law; Image analysis; Image processing; Machine vision; Teknisk fysik; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP Teknisk fysik;

    Abstract : This thesis treats static and dynamic surface characterization using radiometric and Fourier optical methods. A Fourier optical method has been developed for real time image processing in paper production and printing applications. READ MORE

  5. 5. Appearance characterisation of textured polymeric surfaces

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ingrid Arino; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; appearance; reflectance; polymer; colour; surface texture; gloss;

    Abstract : Appearance demands for industrial products are generally increasing since they are closely related to the overall quality impression. Consequently, there is a need to define appearance through its main descriptors, which are gloss, colour and surface texture, as well as the relations between them. READ MORE