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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Vizualizace dat z 3D laserového skeneru / Tools for visualisation of data from 3D laser scanners

Střižík, Jakub January 2013 (has links)
Master thesis deals with the creation of the data visualization measured by 3D laser scanner using the Point Cloud method. Measured data were parameterized after loading for use in programming environment of Microsoft Visual Studio 2010 and in platform XNA. Individual data points forms the center of defined cubes which are displayed and create a scene where is possible to move through a user input in the form of a keyboard or mouse. Created algorithms were analyzed to determine the total running speed of the program, the individual as well as critical sections. The algorithms were optimized to a higher running speed of the program on the basis of analyzed data. Optimization was focused on the selection of retrieved data and on the method of their saving within the program environment. The next optimization process was based on the using of the other method for displaying of measured data points. Individual data points were displayed in form of square 2D texture replacing the cube. This square is rotating according to move of observer. Designed algorithm optimization leads to faster running of the program.
2

Metoda radiometrické korekce smile efektu u hyperspektrálního skeneru / Procedure of a smile effect radiometric correction for hyperspectral scanner

Skalický, Filip January 2012 (has links)
The diploma theses focused on the topic of removing spectral aberration of sensor. The anomaly is being called spectral smile effect, or spectral curvature. Usually are with this artifact affected hyperspectral sensors, whose sensing is based on principle corresponding to pushbroom scanner. The defect occurs in the data as brightness gradient in the cross-track direction to the sensor flight and affects the object's spectral characteristics shape. Removing is important particularly in case of applying atmospheric correction algorithm, which are being degraded with presence of this defect. The work contents description of current methods used for detecting and eliminating this anomaly. The work is closer focused on the methods removing the defect based on own measured data without use of calibration targets. There is being examined sensitivity of the methods on the scene perception character, meaning heterogeneity of the scene and other outside influence. One of the methods is deeply processed resulting in increasing quality of the method for removing the defect.
3

Marketingová strategie zvoleného subjektu / Marketing Strategy of Selected Enterprise

Jedličková, Zuzana January 2016 (has links)
Master thesis Marketing strategy of selected enterprise is engaged in optimizing the marketing campaign for the launch of the product on the market. Document Scanner DR-C240, which introduces Canon at the B2B market, due to changes in legislations, targeting the sale of the state administration and the executive. The theoretical part defines basic themes and concepts that are the introduction of a product on the market and marketing strategies linked. In the practical part there is analysis of the marketing mix of product, PEST analysis, Porter's model, evaluation of existing strategies, information from an interview with an Canon employee and also financial data analysis. All this is used to formulate recommendations for optimizing marketing campaigns. The author also formulates specific recommendations on product and communication level to the selected entity to help overcome a sluggish performance in recent years and has helped in increasing sales.
4

Přístupy k řešení digitalizace dokumentů. / Approaches to the implementation of document imaging systems

Kapicová, Eva January 2010 (has links)
This thesis is focused on document imaging and describes different approaches to the implementation of document imaging systems. In the first part there is the theoretical background of the document imaging that is supplemented by current statistics. In the first part there are also some remarks on the situation on the Czech market. The second part is based on examinations of different approaches to document imaging systems that were made by Czech companies. The main objective of this thesis is a practical example of selecting an appropriate solution of the document imaging. There are considered three types of approaches to the document imaging: complete outsourcing, in-house outsourcing or a solution of their own. To achieve this goal there is an adequate theoretical basis for the document imaging and an overview of hardware and software support for digitization in the first part of the thesis. TEI method by Forrester Research is used for comparison of the economic impact of the different approaches. The contribution of this thesis is primarily in the description of the state of document imaging in the Czech Republic and also examination of different solutions and approaches to the document imaging. There is also a completion of the theoretical part by a data from current surveys.
5

Konstrukce 3D skeneru pro výukové účely / Design of a 3D scanner for educational purposes

Paprsek, Adam January 2018 (has links)
The aim of the submitted semestral project is research of 3D scanning object methods. The 3D scans utilization and types of these scans have been mentioned in the first chapter. The scanners are grouped into two basic methods – contact and contactless. The second chapter is dedicated to 3D model measurement principles, which are described in detail in four sub-chapters. In the following chapter is described design with complete realization 3D scanner with the implementation of the application for its controlling. Last part of the thesis concerns the 3D model editing and method evaluating.
6

Měření parametrů axiálních ložisek 2D triangulační technikou / Measurement of axial bearing parameters by 2D triangulation technique

Schrötter, Ján January 2018 (has links)
The goal of this diplma thesis is to design a system for axial bearings parameter measurement. The system uses principles of 2D active optical triangulation. The system will have a capability of compensating error caused by refraction on preservative oil layer, which the bearings are covered in.
7

Návrh replikované výroby zvolené součásti za využití technologie Reverse engineering a Rapid prototyping / Design of replicated production of the selected part using the technology Reverse Engineering and Rapid prototyping

Kolář, Jakub January 2019 (has links)
This study has been as a diploma project at BUT. Theoretical part describes the most used methods in Reverse engineering and Rapid Prototyping. Each method describes its characteristics, usability and pros and cons in general. Practical part of this study deals with application of these methods. Goal of this work has been to obtain a digital model of a winker from Škoda 1000 car using optical scanner ATOS, making a new master model in CATIA software, analyzing its dimensions compared to the scanned model and choosing a suitable manufacturing technology with emphasis on functional properties of this component.
8

Výzkumný 3D skener pro účely skenování problematických povrchů / Research 3D scanner for scanning of problematic surfaces

Bátrla, Martin January 2019 (has links)
This diploma thesis deals with design of 3D scanner for scanning problematic surfaces. The research part introduces the problem of 3D scanning and describes causes of random errors. Further, it contains a description and division of methods that leads to their elimination. The practical part of the thesis deals with design and description of hardware and software parts of the 3D scanner. The output of this work is device that is able to implement and compare quality of codification methods mainly for scanning of problematic surfaces. The functionality of equipment was verified by experimental measurement.
9

Návrh detekce bezpečnostních mezer serverů v rozsáhlé sítí / Design of detection tool for security gaps of servers in wide network

Chudý, Martin January 2020 (has links)
This Master’s thesis deals with proposal of server security gap detection system placed into wide network. On the base of detection system ouput there are rules for scanner data evaluation. After detecting specific security vulnerabilities is created methodology for fixing security gaps onto servers.
10

Laserový proximitní skener - mechanika / Laser Proximity Scanner - Mechanics

Kočí, Martin January 2009 (has links)
This thesis deals with possibility use ordinary optical distance sensor as a 3D laser proximity scanner. The thesis is aimed at design mechanical part of scanner for shifting laser beam in two axes. In the scanner is applied indirect shifting of the beam by a mirror. Next is described test control circuit, which has a controlling of direction of beam shifting and data acquisition for task. The control circuit is based on microcontroller ATmega48 with controlling program. On the end of thesis are shown results of measuring reached with designed scanner.

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