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Object detection
Baáš, Filip ; Petyovský, Petr (referee) ; Richter, Miloslav (advisor)
This bachelor thesis deals with detection of rigid objects in images. Chamfer matching algorithm, which is built for this kind of tasks is used as detection algorithm. First part of this work is dedicated to theoretical explanation of the algorithm. Most commonly used metrics of distance transform are explained, which is needed for the algorithm. Also explanation of chamfer distance calculation and pyramid representation of information is here. Next part is dedicated to development tools used in this work, which is integrated development environment Visual Studio and libraries OpenCV for image processing and Qt for graphical user interface creation. In last part of this work, practical implementation of object detection is described. This part explains the way objects are rendered, steps for creating a template from rendered image, method to create set of templates, comparison of speed of distance transformation calculation in different metrics, comparison of speed of common and pyramid detection and method of score calculation. The conclusion summarizes reached goals of this work.
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Optical Character Recognition
Bílek, Jan ; Žák, Pavel (referee) ; Zuzaňák, Jiří (advisor)
This work describes problems of optical character recognition and methods which are used to improve its results. It specializes in problems of image spam and its adjustment for its recognition. This work describes methods of processing an image which leads to better results of text recognition and also some methods used to the character recognition. There is also described a scheme and an implementation of a system which processes an image spam and detects a text within it.
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Complex System for Web Page Creating and Editing
Jablonský, Viktor ; Vrážel, Dušan (referee) ; Kunc, Michael (advisor)
This thesis describes a system which offers customer registration and user administration-related tasks. It also facilitates an apparatus for supervising service fees. Above all, it provides users with tools with which they can create their own web site with ease and also change its content and appearance. This is achieved by using templates and modules. The Document also analyses specifications for this type of application, describes phases of design and implementation and draws out possible continuation of this project.
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Enhanced mathematical library for C++
Temel, Aleš ; Macho, Tomáš (referee) ; Petyovský, Petr (advisor)
I create a library for storing matrices and working with matrices in this bachelor’s thesis. In this case, the issues concern mainly so-called sparse matrices. C++ do not provide among the standard libraries tools for easy working with sparse matrices. The most frequent alternative is the application of two-dimensional array (2D array). 2D array may be realized as a double pointer representing the rows and the columns of the matrix. The basic problem is that behavior of 2D array is identical both to the sparse, and to the full non-zero matrix. 2D array ignores the possibility to store matrices more favorable. The library for storing matrices designed by me takes into account the storing of sparse matrices by several different ways. It offers the sparse format CSR (Compressed sparse rows), as well as alternatives to save the specially structured matrices. In the course of creating library the main emphasis first of all I put on the amount of memory that is necessary for storing matrices. Because it is a mathematical library, it contains different functions suitable for working with matrices, such as determinant calculation, inverse matrix calculation and so. When calculate these functions it is necessary to take into account used memory size as well. Intermediate results are stored also in sparse format, and removed as soon as possible after their use. I created also the second library that deals with the floating point numbers stored with greater precision than standard data types like float and double. The size of occupied memory increases according to precision of floating point number.
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Nanostructured surfaces for electrochemical detection
Dzuro, Matej ; Hrdý, Radim (referee) ; Drbohlavová, Jana (advisor)
This work deals with the preparation of gold nanostructures for future usage in electrochemical sensors and biosensors, methods for their characterization and production. The emphasis is focused on the template-based electrodeposition method of gold and on study of the effect of manufacturing conditions on physical properties, mainly electrical and topological of nanostructures. Thesis is focused also on overall function and sensitivity of the gold nanostructured electrode.
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Methodology of Website Design
Smelik, Martin ; Martinka, Radek (referee) ; Koch, Miloš (advisor)
This bachelor thesis deals with the design and creation of the booking system in the website using the Nette framework. The thesis is divided into multiple parts. Finding the theoretical background is concerning the design and creation, and then the following implementation. Purpose of this work is to give readers a sort of a guide for creating applications using the Nette framework.
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Thermal Insulation Effect of a Building with Green Roof on the Operation-Related Expenses
Jílek, Jan ; Hlavinková, Vítězslava (referee) ; Čech, Josef (advisor)
Diploma thesis entitled Influence of green roof insulation on the costs associated with one operation with an assessment of the design of alternative solutions for external contact thermal insulation system and their effects on the assessment of energy performance of the building and the associated costs of construction and operation. Alternatives for the design of a flat roof with a vegetation layer are also chosen in the construction solution of the building. The first part of the diploma thesis deals with the general requirements for the design and assessment of energy performance of buildings. The second part describes the individual options of the selected contact thermal insulation system and variants of flat roofs with a vegetation layer. In the next part, the budget for individual variants of thermal insulation is solved and the price of all variants is determined. The last part demonstrates the assessment of all variants and the overall economic evaluation with the selection of the best variants. For all variants, the time for which the investment will return is evaluated.
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Web page segmentation utilizing clustering techniques
Zelený, Jan ; Šimko, Marián (referee) ; Kliegr, Tomáš (referee) ; Zendulka, Jaroslav (advisor)
Získávání informací a jiné techniky dolování dat z webových stránek získávají na důležitosti s tím, jak se rozvíjí webové technologie a jak roste množství informací uložených na webu, jakožto jediném nosiči těchto informací. Spolu s tímto množství informací také ale roste množství obsahu, který není v kontextu prezentovaných informací ničím důležitý. To je jedním z důvodů, proč je důležité se intenzivně věnovat předzpracování informací uložených na webu. Segmentační algoritmy jsou jedním z možných způsobů předzpracování. Tato práce se věnuje využití shlukovacích technik pro zefektivnění existujících, ale i nalezení zcela nových algoritmů použitelných pro segmentaci webových stránek.
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Preparation of nanostructures using nanoporous template
Dzuro, Matej ; Hrdý, Radim (referee) ; Drbohlavová, Jana (advisor)
The aim of the work described in this paper is to prepare electrochemically an optical sensor consisting of TiO2 quantum dots (QDs) using nanoporous Al2O3 template in the first step and to modify the surface of QDs with gold layer by evaporation process, again using nanoporous template, in the second step. This easy, cheap and rapid approach provides homogenous and highly ordered distribution of both nanostructures on substrate. The final objective is to characterize the physical parameters and fluorescent properties of TiO2/Au sensor designed for optical detection of biomolecules such as DNA and proteins.
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Face recognition
Škrobák, Dalibor ; Číka, Petr (referee) ; Kyselý, František (advisor)
This thesis is focused on face detection in static picture. Theoretical part contains color spaces (RGB, HSI, YCbCr), methods for skin detection (explicit, parametric or non-parametric methods), image metric, edge detection, mathematical morphology, methods for classification faces (appearance-based methods, feature invariant approaches, knowledge-based methods, template matching methods). Practical part of this thesis contains concept and practical realization two algorithms for segmentation skin in static image (simple method based on Cr chroma components and statistical method). Practical part contains concept and practical realization two algorithms for classification face (appearance-based method and template matching method) too.
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