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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Yttrium oxide layers for antireflection coating of silicon solar cells
 Dostál, Vladimír ; Boušek, Jaroslav (referee) ; Hégr, Ondřej (advisor)
This work deals with deposition of yttrium oxide layers on silicon substrate (P – type) by using magnetron and reactive magnetron sputtering. Experiments which were made are further described. After that, work is focused on evaluation of deposited layers by using FTIR measurement technique and spectrophotometry. At the end of the work results of experiments are discussed also with the future progress.
Detailed record
Preprocessing of retinal images
 Dostál, Vladimír ; Provazník, Ivo (referee) ; Kolář, Radim (advisor)
This thesis deals with the principle of capturing images of the retina of fundus camera, their features and then preprocessing. The aim of preprocessing is the correction of nonillumination in images of the retina. The model of non-illumination is obtained by using parametric surfaces. Coons surface was selected from a set of surfaces based on the knowledge of retinal images. This has been approximated by a non-uniform illumination. Then the thesis concentrates on describing the methods involving shading corrections. Compensation of non-uniform illumination is based on the use of parametric surface and selected methods for shading correction. The methods presented in the last chapter were tested on simulated and real data. The results were evaluated subjectively.
Detailed record
Yttrium oxide layers for antireflection coating of silicon solar cells
 Dostál, Vladimír ; Boušek, Jaroslav (referee) ; Hégr, Ondřej (advisor)
This work deals with deposition of yttrium oxide layers on silicon substrate (P – type) by using magnetron and reactive magnetron sputtering. Experiments which were made are further described. After that, work is focused on evaluation of deposited layers by using FTIR measurement technique and spectrophotometry. At the end of the work results of experiments are discussed also with the future progress.
Detailed record
Preprocessing of retinal images
 Dostál, Vladimír ; Provazník, Ivo (referee) ; Kolář, Radim (advisor)
This thesis deals with the principle of capturing images of the retina of fundus camera, their features and then preprocessing. The aim of preprocessing is the correction of nonillumination in images of the retina. The model of non-illumination is obtained by using parametric surfaces. Coons surface was selected from a set of surfaces based on the knowledge of retinal images. This has been approximated by a non-uniform illumination. Then the thesis concentrates on describing the methods involving shading corrections. Compensation of non-uniform illumination is based on the use of parametric surface and selected methods for shading correction. The methods presented in the last chapter were tested on simulated and real data. The results were evaluated subjectively.
Detailed record

See also: similar author names
7 Dostal, Vojtěch
7 Dostál, Vojtěch
9 Dostál, Václav
1 Dostál, Vít
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