Sökning: "active contour"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden active contour.

  1. 1. A Machine Learning Approach to Skin Cancer Delineation on Photoacoustic Imaging

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation

    Författare :Alice Fracchia; [2023]
    Nyckelord :Skin cancer; carcinoma; photoacoustic imaging; ultrasound imaging; machine learning; dimensionality reduction; sandpiles algorithm; active contour; multilayer perception MLP ; convolutional neural networks CNN ; autoencoder; Physics and Astronomy;

    Sammanfattning : Skin cancer is a growing public health concern due to its prevalence among the population. Current clinical procedures require high invasiveness and multiple surgeries, which are responsible for patient discomfort and high medical expenses. LÄS MER

  3. 2. Sample Image Segmentation of Microscope Slides

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för visuell information och interaktion

    Författare :Maija Persson; [2022]
    Nyckelord :image segmentation; fully convolutional network; microscope slide; Kato-Katz;

    Sammanfattning : In tropical and subtropical countries with bad infrastructure there exists diseases which are often neglected and untreated. Some of these diseases are caused by parasitic intestinal worms which most often affect children severely. The worms spread through parasite eggs in human stool that end up in arable soil and drinking water. LÄS MER

  4. 3. Segmentation of White Blood Cells Using Deep Learning

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Sophia Grimmeiss Grahm; Desiré Nilsson; [2019]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The white blood cell count and differential is an important part of diagnosing a number of medical conditions. Instead of doing this by manual microscopy, CellaVision’s technology has automated the process of finding and classifying white blood cells. To support a diagnosis it is desired that the system can produce cytoplasm-to-nucleus-ratio. LÄS MER

  5. 4. Image analysis tool for geometric variations of the jugular veins in ultrasonic sequences : Development and evaluation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för visuell information och interaktion

    Författare :Arvid Westlund; [2018]
    Nyckelord :active contour; ultra sound; ultrasonic; image analysis; internal jugular veins; snake;

    Sammanfattning : The aim of this project is to develop and perform a first evaluation of a software, based on the active contour, which automatically computes the cross-section area of the internal jugular veins through a sequence of 90 ultrasound images. The software is intended to be useful in future research in the field of intra cranial pressure and its associated diseases. LÄS MER

  7. 5. Semi-automatic evaluation of lymph nodes in patients with rectal neoplasms with diffusion weighted MRI

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

    Författare :Daniel Roth; [2016]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Background and purpose Several studies have shown that surgery with pre- or post-operative adjuvant radiotherapy reduces the local recurrence rate in rectal cancer patients. Preoperative evaluation of lymph node involvement is difficult but important for assessing the benefit of radiotherapy. LÄS MER