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Optimization of network position prediction
Pospíšil, Petr ; Pfeifer, Václav (referee) ; Burget, Radim (advisor)
This work is about position prediction in network, it is focused to find Landmark closest to the Host in the network (with lowest distance vector). The algorithm is based on GNP system. In terms of GNP system simulation was selected method for mathematical part of position prediction. The method was Simplex Downhill. The designed algorithm was implemented in Java. In the first step chose Host continent by meassuring the distance vector. In next step is selected nearest part in the continent. In conclusion estimate Host its position and then closest Landmark. Results from this work is important for designing TTP protocol. The verdict is that the GNP can be used for TTP, but Landmarks must be located in uniform density.
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Color-to-Grayscale Conversions
Pospíšil, Petr ; Brejcha, Jan (referee) ; Čadík, Martin (advisor)
Grayscale pictures were never replaced by color ones and will probably never be, because they are indispensable in many areas. In this thesis was chosen three methods for color-to-gray conversion. These methods was implemented afterwards. Within this thesis was also made test set of 24 HDR pictures, which was together with existing set of 24 LDR pictures used to test and evaluate features of implemented methods. These methods were also compared from the point of accurancy and preference using questionnaire.
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Fly over Rugged Planet
Pospíšil, Petr ; Chudý, Peter (referee) ; Jošth, Radovan (advisor)
This thesis deals with a 3D visualization of the Earth´s surface in real time. A significant part is dedicated to the buffering of the large amount of data (a height map and textures of Earth) and its effective reading from hard disk directly to the memory of a graphic card. Individual levels of detail of the Earth´s surface are made by GeoMipMapping. The algorithms "horizon" and "frustum culling" are used, which cut off the hidden parts of the planet. The application of the height data is based on a custom algorithm calculating the data directly in the graphic card, in assistance with its vertex and geometry shaders.
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3D triangulation technique for object reconstruction
Pospíšil, Petr ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
My paper work deals with the 3D active triangular method of building reconstruction. First, there was a measuring triangular system created. Then the way of its automatic calibration was proposed and consequently also performed. Also algorithms for the automatic detection of the sample projected were proposed. Algoriths were presented with several sample buildings. The result of these algorithms are 3D models of individual buildings. In the end achieved results nd restrictions of the system proposed were assessed.
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Qualification Prerequisities of Submitters of Public Orders on Construction Works
Pospíšil, Petr ; Wiesner, Zdenek (referee) ; Hrabincová, Dagmar (advisor)
The master’s thesis is about qualification prerequisities of submitter of public orders on construction works. The first four theoretic chapters discuss the submitters and kinds of public contract. There are analyzed particular selection procedures including open simplified underlimited procedure and small-range contracts, which are related to the second part of the master’s thesis. After that there is presented practical part. The main point of this work is to determine which of the qualification prerequisities are for submitter of public orders the most important. Consequently there is recommended which of the qualification prerequisities is convenient to use. The master’s thesis inculdes prices‘ development of public contracts on construction works in the sphere of traffic in years 2009 – 2011.
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Design and Optimization of the Trading Strategy in Financial Markets
Pospíšil, Petr ; Slatinský, Miroslav (referee) ; Budík, Jan (advisor)
This bachelor's thesis is concerned with the design and optimization of a trading strategy on Foreign Exchange – particularly on EURUSD currency pair. The strategy makes use of standard indicators used in technical analysis and is consequently optimized and backtested using history data. The thesis addresses both the development of such a strategy and the main pitfalls, ones with which I have came in contact with and had to solve, are discussed.
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Managing Users as a Source of Risk
Pospíšil, Petr ; Konečný, Martin (referee) ; Sedlák, Petr (advisor)
This diploma thesis focuses on human resources mainly in Critical information infrastructure and Important information systems. Thesis focuses on the most frequent threats for users and design possible model of threat reduction. Integral part of results is designing of effective security awareness education program according to the Law on Cyber Security.
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Library for Efficient Video Capture in 3D Application
Pospíšil, Petr ; Navrátil, Jan (referee) ; Havel, Jiří (advisor)
This thesis deals with library for recording video in the background of 3D application. A library is designed to work under the Microsoft Windows and Linux operation systems. It records image and also sound. Image recording is supported in OpenGL, Direct3D9, Direct3D10 and Direct3D11. To reduce video data size, library supports image compression using MJPG codec. Audio is recorded by WaveForm audio, Windows Core Audio or ALSA. Recorded sound is for whole operation system. A library is able to record up to two audio streams to accommodate possible microphone input. It can mix audio data together if needed. Output data are then written into AVI file. It is possible to write own text information as overlay that is rendered as part of application screen output.
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Distribution Network Development and Configuration
Pospíšil, Petr ; Beneš, Jan (referee) ; Topolánek, David (advisor)
The theme of this master‘s thesis is distribution network development and configuration in the part of Brno – Trnitá. There is expected to be investments there in the next few years. The thesis consists of two parts. For better understanding of this problem, the first theoretical part concerns with the description of electrical network (subdivision in accordance with voltage levels, conductor types, network types and other electrical network parts), solution of grid’s steady state (as a linear task and also non-linear task, elimination of the balancing node, the iterative method) and Brno distribution network characteristics. The second part concerns with distribution network development and configuration depending on anticipated load development in Trnitá. The result is proposal for transformer station construction Opuštěná fitted with three transformers of nominal output SN = 40 MVA and network configuration change required both for providing new consumption supply as well as sustaining current one.
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Price analysis of building with changes of construction materials
Pospíšil, Petr ; Vovesný, Jan (referee) ; Aigel, Petr (advisor)
The following bachelor thesis concentrates on the analysis of construction expenditures dutiny the process of introducing material and construction changes. We have selected four variant of the given construction systems supplied by four different providers. This has been conducted under the following condition: all the four variants has a common heat transfer coefficient. U= 0,14 [W/m2K]. Among the selected systems we have included Heluz, Velox, Porotherm and Ytong. Under Heluz system we have chosen Heluz Family, ground surface, thickness 500 mm. This system does not involved contact insulation. As for Porotherm, we have decided for ceramic breeze blocks Porotherm 30, thickness 300 mm, to follow the obligatory common heat transfer coefficient, therefore we have also suggested contact insulation as of 220 mm. The third system, Velox permanent boarding, VELOX WS EPS PLUS thickness 420 [mm]. This system fully complies with the heat transfer coefficient requirements. Finally, we have used Ytong breeze blocks 300 mm in thickness. For this solution there also arose a need to design the contact insulation to follow the heat transfer coefficient requirements. For ech project variant we have designed project documuntation as a the basis for further budget item calculations pertinent to each single project variant. The item budget calculation was made using KROS PLUS programme. The overall budget prices and variables in each project variant have been comapred with each other, the data processed into several graphs accordingly. Among the variables we have included ground works, founding, vertical and complete constructions, horizontal constructions, surfaře finishing works, flooring and filling works, thermal insulations. Furthermore, purchasing prices for each invividual type of material, based on provider prices list, have been compared with prices as given by KROS PLUS programme.
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