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Showing result 1 - 5 of 16 essays matching the above criteria.

  1. 1. Hyperspectral and multispectral satellite data analysis of nitrogen in grazed and ungrazed tundra in Långfjället, Sweden

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Emma Dahlstedt; [2023-08-18]
    Keywords : Hyperspectral imaging; Imaging spectroscopy; Nitrogen; Reindeer; Herbivory; Tundra; Grazing;

    Abstract : Reindeer are a keystone species in the circumpolar north, where they hold great cultural and ecological importance. Continued climate change threatens the long-term sustainability of reindeer husbandry. Reindeer can affect the tundra landscape, influencing the soil nutrient cycling, including the soil nitrogen availability. READ MORE

  3. 2. DEVELOPING METHODS FOR WATER QUALITY MEASUREMENT : Using machine learning and remote sensing to predict absorbance with multispectral imaging

    University essay from Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Author : Ola Bratt; [2023]
    Keywords : Remote Sensing; Multivariate Analysis; Machine Learning; GIS; Spectroscopy; Spectral imaging; Multispectral imaging; Water Quality;

    Abstract : Water resources play an important role in society and fulfill various functions such as providing drinking water, supporting industrial production and enhancing the overall landscape. Water bodies, such as rivers and lakes, are particularly important in this context. READ MORE

  4. 3. Multi-spectral X-ray imaging with a laser-plasma accelerator

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Andrea Angella; [2022]
    Keywords : Multi-spectral imaging; single-photon counting; X-ray absorption spectroscopy; XAS; LWFA; laser-wakefield acceleration; K-edge; imaging; metal-detection algorithm; Physics and Astronomy;

    Abstract : This master thesis focuses on the creation of an algorithm to perform multispectral imaging of a metallic target using X-rays. The generation of an ultrashort high-power low-divergent X-ray beam is performed by means of a Ti:Sapphire laser driven wake-field plasma accelerator. READ MORE

  5. 4. Exploring Diversity of Spectral Data in Cloud Detection with Machine Learning Methods : Contribution of Near Infrared band in improving cloud detection in winter images

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Nakita Sunil Oza; [2022]
    Keywords : Remote sensing; Multispectral imaging; Cloud detection; Data diversity; Deep learning; Fjärranalys; Multispektral bildbehandling; Molndetektion; Datadiversitet; Djupinlärning;

    Abstract : Cloud detection on satellite imagery is an essential pre-processing step for several remote sensing applications. In general, machine learning based methods for cloud detection perform well, especially the ones based on deep learning as they consider both spatial and spectral features of the input image. READ MORE

  6. 5. Painting, Play, and Politics : A Technical Examination of the Painting Polyxena is Sacrificed by Jacob de Wet I (ca 1610-1675) and its Cultural Contex

    University essay from Stockholms universitet/Institutionen för kultur och estetik

    Author : Joanna Kiesler Svensson; [2022]
    Keywords : Technical Art History; Multispectral Imaging; Polyxena; Jacob de Wet; Dutch Golden Age; Theatricality;

    Abstract : The study departs from a technical examination of the panel painting Polyxena is Sacrificed in the Stockholm University Collection of Art, establishing the artistic process, level of ambition, and material choices by means of multispectral imaging techniques and elemental analysis. The artist, Jacob de Wet I, was both a well-reputed Haarlem-painter who specialized in small scale history paintings and headed a mass-producing workshop which supplied the low-end art markets of Haarlem and Amsterdam. READ MORE