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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Reprezentační neuronové sítě pro diferencovatelné renderování objemu
 Nejedlý, Jaroslav ; Rittig, Tobias (advisor) ; Antolík, Ján (referee)
This thesis investigates the possibility of using a representation neural network as a data structure for an appearance prediction model. We present the representation network as an adaptation of the popular neural radiance field network. The representation network is studied on 2D images as well as volumetric data. This thesis also evaluates the outputs of the appearance prediction network which uses the representation network. Our analysis shows a decent quality of the representation network for 2D images and simple volumetric data. However, the outputs of the appearance prediction network are suboptimal. We conclude that the representation network presented in this thesis should be im- proved and the appearance prediction model should be fine-tuned to the representation network as its input. 1
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Solar Flares from Optical to X-ray Emission
 Nejedlý, Jaroslav ; Kašparová, Jana (advisor) ; Řípa, Jakub (referee)
Solar flare is a phenomenon during which a large amount of energy is released in various forms. Part of this energy is released in form of different electromagnetic radiation. By analysing hard X-ray spectra of such emission it is possible to derive various parameters of a flare. Thanks to accurate images of solar atmosphere in comparatively high resolution, it is possible to analyse spatial structure of solar flares. By combining data from RHESSI, SDO, GOES, and ground-based observatories, it is feasible to gain an overview of various aspects of solar flares. Combination of multiple different observations of same event will allow us to compare obtained results. The result of this thesis is an analysis of spectra and spatial structures of two selected flares and derivation of their parameters. 1
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See also: similar author names
1 NEJEDLÝ, Jiří
4 Nejedlý, Jakub
3 Nejedlý, Jan
8 Nejedlý, Jindřich
4 Nejedlý, Josef
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