Sökning: "compressed imaging"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden compressed imaging.

  1. 1. Reconstruction of Accelerated Cardiovascular MRI data

    Master-uppsats, Linköpings universitet/Statistik och maskininlärning

    Författare :Hussnain Khalid; [2023]
    Nyckelord :medical imaging; deep learning; CNN; Magnetic resonance imaging; MRI; Cardiac MRI; Cardiac; Cardiovascular; reconstruction; 4D flow MRI; Parallel Imaging; Compressed Sensing; FlowVN; Flow Variational Network; K-space; Reference images; sensitivity maps; Respiratory motion; undersampled images;

    Sammanfattning : Magnetic resonance imaging (MRI), is a noninvasive medical imaging testing techniquewhich is used to produce detailed images of internal structure of the human body, includingbones, muscles, organs, and blood vessels. MRI scanners use large magnets and radiowaves to create images of the body. LÄS MER

  3. 2. Reconstruction of Hyperspectral Images Using Generative Adversarial Networks

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Jacob Eek; [2021]
    Nyckelord :Coded aperture snapshot spectral imaging; CASSI; Raman; Raman spectroscopy; Explosive; Detection; Hyperspectral Image; HSI; Compressed sensing; Compressive Sensing; CS; Machine Learning; Reconstruction; Inverse problem; Generative Adversarial Network; GAN; CGAN; BEGAN; Latent variable optimization;

    Sammanfattning : Fast detection and identification of unknown substances is an area of interest for many parties. Raman spectroscopy is a laser-based method allowing for long range no contact investigation of substances. LÄS MER

  4. 3. Development of a flexible stand to position a microwave transmitter : A complimentary tool to test equipment for breast cancer research

    Kandidat-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Kim Bojnell; Mattias Feltendal; [2021]
    Nyckelord :Breast tissue imaging; Positioning; Transmitter; Microwave; Product development; Flexibility;

    Sammanfattning : Breast cancer is the most common form of cancer among women, this type of cancer is diagnosed in around 9000 women every year in Sweden. The most common studies to find breast cancer is through mammography where the breast tissue is compressed and exposed by radiation. LÄS MER

  5. 4. Reduction of streak artifacts in radial MRI using CycleGAN

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

    Författare :Amanda Ullvin; [2020]
    Nyckelord :MRI; Cardiovascular; CMR; Medical Imaging; Radial k-space sampling; Sub-Nyquist sampling; Golden Angle; GRASP; Compressed Sensing; Artificial Intelligence; Neural Network; Deep Learning; GAN; CycleGAN;

    Sammanfattning : One way of reducing the examination time in magnetic resonance imaging (MRI) is to reduce the amount of raw data acquired, by performing so-called undersampling. Conventionally, MRI data is acquired line-by-line on a Cartesian grid. LÄS MER

  7. 5. Compression and Decompression of Color MRI Image by Huffman Coding

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Xin Zou; [2018]
    Nyckelord :;

    Sammanfattning : MRI image (Magnetic Resonance Imaging) as a universal body checkup method in modern medicine. It can help doctors to analyze the condition of patients as soon as possible. As the medical images, the MRI images have high quality and a large amount of data, which requires more transmission time and larger storage capacity. LÄS MER