Sökning: "Signal segmentation"

Visar resultat 1 - 5 av 38 uppsatser innehållade orden Signal segmentation.

1. 1. Analyzing the Influence of Synthetic andAugmented Data on Segmentation Model

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Alex Peschel; [2023]
   Nyckelord :Artificial Intelligence; Microorganisms; Segmentation; Synthesizing; Augmentation;

   Sammanfattning : The field of Artificial Intelligence (AI) has experienced unprecedented growth in recent years, thanks to the numerous applications related to speech recognition, natural language processing, and computer vision. However, one of the challenges facing AI is the requirement for large amounts of energy, time, and data to be effective and accurate. LÄS MER

3. 2. Physiology-Guided Machine Learning for Improved Reliability of Non-Invasive Assessment of Pulmonary Hypertension

   Master-uppsats, Linköpings universitet/Avdelningen för medicinsk teknik

   Författare :Frida Hermansson; [2023]
   Nyckelord :Pulmonary Hypertension; pulmonary hypertension; improving; physiological-guided; machine learning; neural networks; NN; artificial neural networks; non-invasive; PH; tricuspid regurgitation; peak tricuspid regurgitation velocity; tricuspid regurgitation velocity; right ventricular systolic pressure; VGG16; Unet; TR-CNN; CNN; pulmonell hypertension; förbättra; fysiologisk-guidning; neurala nätverk; trikuspidal regurgitation; maximal trikuspidal regurgitation; icke-invasivt;

   Sammanfattning : Diagnosing pulmonary hypertension (PH) with right heart catheterization (RHC) is associated with a risk for complications and high expenses, leading to late diagnoses [1]. Transthoracic echocardiography can be used to assess non-invasive indicators for PH such as right ventricular systolic pressure (RVSP), which can be estimated by combining the peak tricuspid regurgitation velocity (TRV) with the estimated right arterial pressure (RAP). LÄS MER

4. 3. Deep Learning Based Detection, Quantification, and Subdivision of White Matter Hyperintensities in Brain MRI

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen Vi3

   Författare :Inna Fryckstedt; [2023]
   Nyckelord :white matter hyperintensities; white matter lesions; deep learning; machine learning; DL; ML; MRI; iNPH;

   Sammanfattning : White matter hyperintensities (WMH) are commonly found as bright regions in brain MRI images in older individuals. They are associated with various neurological and vascular diseases, such as stroke, dementia, and cardiovascular disorders. LÄS MER

5. 4. Development and Application of Analytical Tools for Calcium Signaling Dynamics in MDCK-II Cells

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Hanna Israelsson; [2023]
   Nyckelord :Cellpose 2.0; MDCKII; GCaMP6m; Gap Junctions; Calcium; Ouabain; Cellpose 2.0; MDCKII; GCaMP6m; Gap Junctions; Kalcium; Ouabain;

   Sammanfattning : Calcium, a pivotal ion in various human signaling pathways, holds significant relevance in cancer research and treatment. Investigating the transmission of spontaneous calcium signals between cells and understanding how they are influenced by different treatments is therefore an interesting area of study. LÄS MER

7. 5. The role of gap junctions in coordination of intercellular Ca2+ signaling

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Emma Latron; [2023]
   Nyckelord :applied physics; biophysics; Calcium; MDCKII; Gap Junctions; signalling; Segmentation; Tillämpad fysik; Biofysik; Kalcium; MDCKII; Gap Junctions; signalering; segmentering;

   Sammanfattning : Calcium ions are one of the most versatile signalling molecules. They are essential tothe proper functioning of various cellular processes in many different types of cells.The calcium signals have been studied in the past using ratiometric dyes like Fura-2. LÄS MER