National Repository of Grey Literature 32 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Numerical methods of image processing from NASA's SDO space probe
Meduňa, Tomáš ; Druckmüller, Miloslav (referee) ; Hoderová, Jana (advisor)
Tato práce se zabývá zpracováním snímků Slunce pořízených kosmickou sondou SDO na různých vlnových délkách a vizualizací výskytu třikrát ionizovaného uhlíku C IV jejich vhodným složením. V práci jsou uvedeny základní informace o Slunci a jeho atmosféře, dále je shrnuta potřebná teorie a možné postupy vizualizace, které jsou následně vyhodnoceny a porovnány. Součástí je i vytvořený program pro snadnou tvorbu snímků vizualizujících uhlík C IV.
Algorithm ICP and its usage for 3D registration
Fiala, Zdeněk ; Hoderová, Jana (referee) ; Procházková, Jana (advisor)
This thesis deals with the ICP algorithm used for point cloud registration. The thesis is divided into three main parts. The first part summarizes the basic concepts needed for the topic. The second part describes the basic ICP algorithm and its improvements. The last section contains the implementation of the algorithm in the C# programming language and the results of testing on real data.
The behavior of functions of several variables in terms of extremes
Beseda, Jiří ; Votavová, Helena (referee) ; Hoderová, Jana (advisor)
Thesis deals with problems of extreme searching in multivariable calculus. Searching maxima/minima of the function can be moreover specified to local extremes, global extremes or strict extremes. For finding extremes we use Sylvester's criterion, which helps us investigate the behavior of functions in stationary points. Stationary point is point, where maxima or minima of the function is expected.
Testing images creation program with defined sub-pixel shift and resize precision
Málková, Eliška ; Martišek, Dalibor (referee) ; Hoderová, Jana (advisor)
Tato práce se zabývá generování testovacích sub-pixelově posunutých obrazu se známým posuvem. Ty umožní najít vhodné parametry váhové funkce, díky nimž se zpřesní hledání posuvu dvou obrazu. Dále je využito konvoluce s proměnným jádrem ke generování obrazu se změněným měřítkem. K definici konvoluce pro obraz využíváme Fourierovu transformaci. Práce zahrnuje všechnu potřebnou teorii a je přiložen program, který slouží ke generování posunutých obrazů a obrazů se změněným měřítkem.
Extremes of Single and Multi-Variable Functions
Floderová, Hana ; Hoderová, Jana (referee) ; Štarha, Pavel (advisor)
Extremes of single and multi-variable functions are problems in which we try to solve maximum or minimum of function. Maximum and minimum of function can be local, global and by the functions of multi-variable bounded. For calculation help us derivative of function, which we put equal to zero and we get out a stationary point. The stationary point is a point, in which we suppose existence of maximum or minimum of function.
Parameter Optimization of the Modified Phase Correlation Method for Sub-pixel Image Registration
Kosová, Petra ; Martišek, Dalibor (referee) ; Hoderová, Jana (advisor)
Práce je zaměřena na určení parametrů váhové funkce, která je pak použita pro určení posunu mezi dvěma obrazy se sub-pixelovou přesností. Jsou použity standartní techniky pro registraci obrazů jako je Fourierova transformace, fázová korelace, bilineární interpolace aj. V práci je zahrnuta potřebná teorie, hledané parametry, postup optimalizace a je přiložen i program, který sloužil jako optimalizační prostředek.
Comparison of qualitative properties of NURBS interpolation curves
Halas, David ; Procházková, Jana (referee) ; Hoderová, Jana (advisor)
This thesis deals with simple interpolation curves, which are clamped. Construction of the curves is solved by several forming tools. There is also brought procedure of their calculation. Result is comparating different interpolation methods. The thesis is useful to understanding for interpolation NURBS curves and for choosing apposite forming methods.
Image quality analysis using Fourier transform
Tkadlecová, Markéta ; Druckmüller, Miloslav (referee) ; Hoderová, Jana (advisor)
This thesis deals with two-dimensional Fourier transform and its use in digital image quality assessment. An algorithm based on amplitude spectra is introduced and tested on different sets of images. Its possible use and disadvantages are described. For understanding the basics of the algorithm the fundamental mathematical theory is included. Mainly the properties of amplitude spectra are explained. Next, the theory of digital images and their characteristics, which can affect their quality, is described. For testing the quality of the image the demonstrative program has been developed.
Detection of image rotation and scaling differences using phase correlation
Meduňa, Tomáš ; Druckmüller, Miloslav (referee) ; Hoderová, Jana (advisor)
This thesis deals with detection of rotation and scaling differences between two similar images by using phase correlation. Necessary mathematical basis such as Fourier transform and its properties is described and demonstrated on examples. Obtained algorithm was used to create an illustrative application.
Analysis of Some Evasion and Pursuit Strategies
Barusová, Ema ; Hoderová, Jana (referee) ; Čermák, Jan (advisor)
The main objective of this bachelor's thesis is an analysis of chosen pursuit and evasion problems. It puts great emphasis on formulation of the mathematical model followed by its analysis, which usually leads to an analytical solution.

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