Sökning: "Temporal denoising"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Temporal denoising.

  1. 1. Quality enhancement of time-resolved computed tomography scans with cycleGAN

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Johannes Stubbe; [2023]
    Nyckelord :carbon fibers; carbon fibres; microfibers; tomography; deep learning; cycleGAN; time-resolved tomography; Physics and Astronomy;

    Sammanfattning : Time-resolved x-ray tomography enables us to dynamically and non-destructively study the interior of a specimen. The obtainable temporal resolution is limited by the x-ray flux and the desired spatial resolution. LÄS MER

  3. 2. Deep learning for temporal super-resolution of 4D Flow MRI

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Pia Callmer; [2023]
    Nyckelord :Temporal super-resolution; 4D Flow MRI; CNN; Artificial Intelligence; MRI; 4D flow; Temporal superupplösning; 4D flöde MRI; CNN; artificiell intelligens; MRI; 4D-flöde;

    Sammanfattning : The accurate assessment of hemodynamics and its parameters play an important role when diagnosing cardiovascular diseases. In this context, 4D Flow Magnetic Resonance Imaging (4D Flow MRI) is a non-invasive measurement technique that facilitates hemodynamic parameter assessment as well as quantitative and qualitative analysis of three-directional flow over time. LÄS MER

  4. 3. 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

  5. 4. Spatio-Temporal Noise Filtering using Convolutional Neural Networks with a Realistic Noise Model under Low-Light Conditions

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Tim Borglund; Tor Nilsson; [2019]
    Nyckelord :Deep Learning; CNN; Image Processing; Video Denoising; Noise Filtering; Mathematics and Statistics;

    Sammanfattning : Convolutional neural networks have in recent years been successfully employed for various image processing tasks, such as filtering noise. There are however relatively few published attempts for processing video in this way. LÄS MER

  7. 5. Denoising and renoising of videofor compression

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Anders Derk Gärdenäs; [2017]
    Nyckelord :;

    Sammanfattning : Videos contain increasingly more data due to increased resolutions. Codecs are further developed and improved to reduce the amount of data in videos. One difficulty with video encoding is noise handling, it's expensive to store noise and the final result is not always aesthetically pleasing. LÄS MER