Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Processing of high-resolution retinal images
Vraňáková, Sofia ; Chmelík, Jiří (oponent) ; Valterová, Eva (vedoucí práce)
The master’s thesis is focused on the processing of high-resolution retinal images. The aim of this work is to obtain images of higher quality from a sequence of low-quality frames. The frames are first pre-processed by using bilateral filtering and contrast enhancement. The shift between the frames in the imaging sequence is estimated using phase correlation, and these frames are then fused together using the averaging through the frames and the super-resolution technique, more specifically regularization based on bilateral total variance. The resulting median quality scores of obtained images are PIQUE 0.2600, NIQE 0.0701, and BRISQUE 0.3936 for the averaging technique and PIQUE 0.1063, NIQE 0.0507, and BRISQUE 0.1570 for super-resolution technique.
Processing of high-resolution retinal images
Vraňáková, Sofia ; Chmelík, Jiří (oponent) ; Valterová, Eva (vedoucí práce)
The master’s thesis is focused on the processing of high-resolution retinal images. The aim of this work is to obtain images of higher quality from a sequence of low-quality frames. The frames are first pre-processed by using bilateral filtering and contrast enhancement. The shift between the frames in the imaging sequence is estimated using phase correlation, and these frames are then fused together using the averaging through the frames and the super-resolution technique, more specifically regularization based on bilateral total variance. The resulting median quality scores of obtained images are PIQUE 0.2600, NIQE 0.0701, and BRISQUE 0.3936 for the averaging technique and PIQUE 0.1063, NIQE 0.0507, and BRISQUE 0.1570 for super-resolution technique.

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