Sökning: "image enhancement"

Visar resultat 11 - 15 av 165 avhandlingar innehållade orden image enhancement.

  1. 11. Enhancement of few-cycle light fields for relativistic nanophotonics

    Författare :Aitor de Andres Gonzalez; Laszlo Veisz; Ove Axner; Rodrigo Lopez-Martens; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Vacuum laser acceleration; spatio-spectral characterization; relativistic nanophotonics; optical parametric synthesis; fysik; Physics;

    Sammanfattning : Pulses of light that are both ultrashort and ultraintense are often generated using optical parametric amplifiers (OPA). These are capable of driving highly non-linear interactions with matter, which are interesting when studying the fundamental laws of our universe. LÄS MER

  3. 12. Novel Analysis Toolkit for Capillaroscopic Images: Development and Clinical Evaluation

    Författare :Abdolamir Karbalaie; Björn-Erik Erlandsson; Olof Lindahl; KTH; []
    Nyckelord :Nailfold videocapillaroscopy; Image enhancement; Inter and intra-observer reliability; Tillämpad medicinsk teknik; Applied Medical Technology;

    Sammanfattning : Nailfold capillaroscopy (NC) is an invasive imaging technique that is used to assess the blood capillary network in the nailfold area. NC is routinely used for patients with microcirculation problems, such as systemic sclerosis and other connective tissue diseases. NC is repeatable and appears to be simple and harmless. LÄS MER

  4. 13. Face Recognition : A Single View Based HMM Approach

    Författare :Hung Son Le; Haibo Li; Josef Bigun; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; face recognition; pattern recognition; computer vision; HMM; Hidden Markov Models; contrast enhancement; pyramid fusion; image processing; Computer science; Datavetenskap;

    Sammanfattning : This dissertation addresses the challenges of giving computers the ability of doing face recognition, i.e. discriminate between different faces. Face recognition systems are commonly trained with a database of face images, becoming “familiar” with the given faces. LÄS MER

  5. 14. Exploring molecular interactions between polypeptide conjugates and protein targets : Manipulating affinity by chemical modifications

    Författare :Aleksandra Balliu; Lars Baltzer; Oliver Seitz; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; polypeptide conjugates; protein targets; molecular recognition; affinity enhancement; conjugation;

    Sammanfattning : In this thesis molecular interactions between polypeptide conjugates and protein targets were investigated. Polypeptides were derivatized with small organic molecules, peptides and oligonucleotides. New strategies were developed with the aim to increase affinities for proteins of biological interest. LÄS MER

  7. 15. Mesoporous magnesium carbonate : Synthesis, characterization and biocompatibility

    Författare :Sara Frykstrand Ångström; Maria Strømme; Johan Gómez de la Torre; Natalia Ferraz; Mika Lindén; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mesoporous; magnesium carbonate; pore size control; cytotoxicity; in vivo; skin irritation; acute systemic toxicity; hemocompatibility; Ca2 uptake; solubility enhancement; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

    Sammanfattning : Mesoporous materials constitute a promising class of nanomaterials for a number of applications due to their tunable pore structure. The synthesis of most mesoporous materials involves a surfactant liquid crystal structure to form the pores. LÄS MER