Národní úložiště šedé literatury Nalezeno 1 záznamů.  Hledání trvalo 0.01 vteřin. 
Deep learning-based noise reduction in X-ray images
Říhová, Barbora ; Jakubíček, Roman (oponent) ; Zemek, Marek (vedoucí práce)
X-ray imaging technology is the foundation for exploring the internal structure of a wide range of objects, however the results can be compromised by noise. This thesis is focused on the removal of noise in X-ray projections using deep learning, that has the capability to adapt to a specific task. The thesis contains a theoretical investigation focusing on the areas of X-ray production and detection, noise in X-ray images, and neural networks. A special chapter is devoted to the description of the chosen solution, which is performed by creating a dataset partially consisting of modeled X-ray projections with the subsequent incorporation of noise corresponding to noise model in real images and partly from X-ray projection series. The RIDNet convolutional neural network architecture was selected for implementation, since it shows good result for denoising task. Three models were trained using different parts of the dataset. The best performance was observed for models, that used real data for training. Their performance is comparable to traditional methods such as BM3D.

Chcete být upozorněni, pokud se objeví nové záznamy odpovídající tomuto dotazu?
Přihlásit se k odběru RSS.