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Post-processing of scanned documents
Tichý, Jan ; Mareš, Martin (advisor) ; Beneš, Jan (referee)
The subject of this work is to propose a method for post-processing of scanned documents containing text and non-text elements. In this work, this problem is analyzed and divided into smaller sub- problems, which are solved. Main problems we propose solutions to are pre-processing of an input image to suppress scanning defects such as poor contrast or rotation of an input image, segmentation to characters, lines and images and finally compression of output document by clustering text elements. We will implement this proposed method as a program processing scanned images into PDF document. Powered by TCPDF (www.tcpdf.org)
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Finding footpaths in a map
Pokorný, Tomáš ; Mareš, Martin (advisor) ; Pangrác, Ondřej (referee)
Walking in the city is a part of everyday life for many people. Finding the right way is not very easy. From the data of OpenStreetMap project we made data structures suitable for finding paths for pedesterians, including direct walking through areas (parks, squares). Fixing some bugs in input data is also a part of the thesis. We have made an application for finding pedesterian ways and their export to GPX as well. Powered by TCPDF (www.tcpdf.org)
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Mailing list archives
Rohár, Pavol ; Mareš, Martin (advisor) ; Hubička, Jan (referee)
This thesis deals with the concept of automated archiving of e-mails from mailing list archives. It is supposed to provide suitable tool for archiving e-mails for administrators and enable users to read archived e-mails via web browser. The main objective of the thesis is to produce an effective program which will support e-mails in MIME format and will be able to work with attachments. The program will be able to correctly display e-mails in various national character encodings and safely process potential untrustworthy data. It will also be able to reasonably group e-mails into individual threads. Lastly, the program will be able to process e-mails which don't meet required and customary Internet Standards in the best possible way.
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Post-processing of scanned documents
Tichý, Jan ; Mareš, Martin (advisor) ; Böhm, Martin (referee)
The subject of this work is to propose a method for post-processing of scanned documents containing text and non-text elements. In this work, this problem is analyzed and divided into smaller sub- problems, which are solved. Main problems we propose solutions to are pre-processing of an input image to suppress scanning defects such as poor contrast or rotation of an input image, segmentation to characters, lines and images and finally compression of output document by clustering text elements. We will implement this proposed method as a program processing scanned images into PDF document. Powered by TCPDF (www.tcpdf.org)
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Home automation
Taufer, Pavel ; Mareš, Martin (advisor) ; Ježek, Pavel (referee)
We design an unified system for home management and monitoring -- for example controlling lights, thermostat, roller blinds, etc. We research various methods of communication with devices used in home automation. We design an unified interface for communication with said devices independent on specific hardware. Then we implement the designed abstraction, a set of specific automation software and a graphical user interface. Powered by TCPDF (www.tcpdf.org)
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Praktické datové struktury
Pokorný, Michael ; Mareš, Martin (advisor) ; Babka, Martin (referee)
In this thesis, we implement several data structures for ordered and unordered dictionaries and we benchmark their performance in main memory on synthetic and practical workloads. Our survey includes both well-known data structures (B-trees, red-black trees, splay trees and hashing) and more exotic approaches (k-splay trees and k-forests). Powered by TCPDF (www.tcpdf.org)
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Web server attack analyzer
Mižišin, Michal ; Novotný, Miroslav (advisor) ; Mareš, Martin (referee)
In this work I will focus on the most common forms of attacks on web applications. My focus will point on so called Injection flaws (attacks where data given by user are interpreted and executed), XSS (Cross Site Scripting) and CSRF (Cross Site Request Forgery), that have for web application in case of compromisation fatal consequences. I will describe these attacks, their history, concrete examples of successful execution. I will propose also possible kinds of protection and possibilities of detection.
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Protokol pro sdílení souborů
Matějek, Jan ; Mareš, Martin (advisor) ; Falt, Zbyněk (referee)
Today's networked computing environments rely heavily on the ability to efficiently transfer data between computers. In order to understand the issues and challenges involved in sharing files and publishing directory trees over a computer network, we examined and summarized features of a number of popular protocols. Using this knowledge, we designed NewTP, a modern file sharing protocol suitable for the Internet. Special emphasis was placed on simplicity of implementation and resistance to attacks. We have proven the protocol's real-world viability by implementing a reference server and a FUSE filesystem module. Powered by TCPDF (www.tcpdf.org)
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Optimizing large applications
Liška, Martin ; Hubička, Jan (advisor) ; Mareš, Martin (referee)
Both uppermost open source compilers, GCC and LLVM, are mature enough to link-time optimize large applications. In case of large applications, we must take into account, except standard speed efficiency and memory consumption, different aspects. We focus on size of the code, cold start-up time, etc. Developers of applications often come up with ad-hoc solutions such as Elfhack utility, start-up of an application via a pre-loading utility and dlopen; prelinking and variety of different tools that reorder functions to fit the order of execution. The goal of the thesis is to analyse all existing techniques of optimization, evaluate their efficiency and design new solutions based on the link-time optimization platform. Powered by TCPDF (www.tcpdf.org)
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