Sökning: "artefacts removal"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden artefacts removal.

  1. 1. Quantitative susceptibility mapping of the knee: A comparison of approaches for addressing fatty tissue

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Cornelia Säll; [2023]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background/purpose Quantitative susceptibility mapping (QSM) is an MRI-based post processing technique to evaluate the magnetic susceptibility, χ, of human tissue using phase data. While brain imaging has been the most common application, other areas have also raised interest. LÄS MER

  3. 2. Automatic Calibration of Camera Parameters : A Steppingstone to Analysing Videos

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :Wilma Hallén; [2022]
    Nyckelord :Smartphone; Video stabilisation; Calibration;

    Sammanfattning : The smartphone is commonly used for image and video capture. Due to the lightweight of the smartphone, small handshakes are noticeable in recorded videos. The image sensors in smartphones are typically CMOS, which introduces rolling shutter artefacts. Stabilisation is introduced to minimise the effects of the camera movement and artefacts. LÄS MER

  4. 3. Removal of Noise from Speech - A case study of a construction machine

    Master-uppsats, KTH/Teknisk akustik

    Författare :Tomoya Otsuka; [2022]
    Nyckelord :signal processing; thesis; beamforming; noise; speech; construction machine; filter; real-time; microphone; measurements; signalbehandling; avhandling; beamforming; buller; tal; byggmaskin; filter; realtid; mikrofon; mätningar;

    Sammanfattning : This report proposes a solution to allow speech to enter a construction machine cabin while removing noise sources. Examples of noises sources include, engine noise, traffic or other construction activities. Survey of the possible methods to remove noise from speech was conducted, however, beamforming was the technique chosen. LÄS MER

  5. 4. Jernalderens bosetning på Gulli og Auli : Det arkeologiske bosetningsmaterialet fra et fenomenologisk perspektiv

    Kandidat-uppsats, Södertörns högskola/Arkeologi

    Författare :Thomas Kjær; [2021]
    Nyckelord :Iron age; settlement; Vestfold; settlement structure; taskscape; phenomenology; dwelling; rescue archaeology; longhouse; neo-localization; continuity;

    Sammanfattning : Historically, Norwegian settlement archaeology and research has depended on secondary materials, such as graves, non-contextual artefacts, and historical maps, often used in a retrogressive manner. Primary settlement materials were scarce, which to some extent justified the use of such methodologies. LÄS MER

  7. 5. Assessment of Functional Connectivity Impairment in Rat Brains

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Androula Savva; [2019]
    Nyckelord :;

    Sammanfattning : While the rodent model has long been used in brain research, there exists no standardisedprocessing routine that can be employed for analysis and investigation of disease models. Thepresent thesis attempts to investigate a diseased brain model by implementing a collection ofscripts, combined with algorithms from existing neuroimaging software, and adapting themto the rodent brain, in an attempt to examine when and how monaural canal atresia affectsthe functional connectivity of the brain. LÄS MER