20 results on '"Drofová, Irena"'
Search Results
2. Analysis of Counterfeits Using Color Models for the Presentation of Painting in Virtual Reality
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Drofova, Irena, Adamek, Milan, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Silhavy, Radek, editor, Silhavy, Petr, editor, and Prokopova, Zdenka, editor
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- 2021
- Full Text
- View/download PDF
3. 360 scanning devices for the reconstruction of 3D digital twins
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Drofová, Irena, Hromada, Martin, Adámek, Milan, Valouch, Jan, Wanecki, Pavel, Drofová, Irena, Hromada, Martin, Adámek, Milan, Valouch, Jan, and Wanecki, Pavel
- Abstract
This article discusses the possibilities of using the terrestrial multi-frame photogrammetry method in industrial fields. It focuses mainly on the types and possibilities of displaying the captured image in 3D models of point clouds. Three basic types of point cloud models are presented, depending on the sensing device with which the image was captured. These devices include a professional laser scanner and a 360° camera. These devices are complemented by a 360° outdoor camera commonly used by the public. The thesis aims to outline the possibilities of using 3D models of point clouds as information carriers in industrial research fields.
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- 2024
4. Application 3D Forensic Science in a Criminal Investigation
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Drofová, Irena, Adámek, Milan, Stoklásek, Pavel, Ficek, Martin, and Valouch, Jan
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3D model ,LiDar sensor ,forensic science ,3D print ,criminal investigation ,photogrammetry ,Computer Science Applications ,Information Systems - Abstract
This manuscript discusses the modern approach and application of 3D digital imaging in forensic science. It presents the basic principles and approaches of 3D modeling methods. Selected methods of image capture and its subsequent processing into a 3D model are applied to a specific object. This object is captured by a mobile phone camera, a LiDar sensor, and a 3D scanner for further image processing for different desired image outputs. The text describes the photogrammetry method, the workflow with the LiDar sensor, and the 3D model of the object intended for 3D printing. The paper discusses the potential of the selected methods and their application in forensic sciences. © World Scientific and Engineering Academy and Society. All Rights Reserved., IGA/CebiaTech/2022/004
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- 2023
- Full Text
- View/download PDF
5. Forensics science and using a color model digital twin artwork to identify a counterfeit
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Drofová, Irena, Adámek, Milan, Wanecki, Pavel, Drofová, Irena, Adámek, Milan, and Wanecki, Pavel
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This article discusses the use of color and color space analysis in the space of 3D reconstruction of a real object. The text focuses on the area of point clouds as a carrier of color information in 3D space. This issue is applied to the 3D reconstruction of an original work of art using the method of photogrammetry into 3D point clouds to use the above procedures in the field of forensic science and the issue of falsification of works of art in digital and virtual environments.
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- 2023
6. The contribution of the European NIS2 directive to the design of the cyber security model
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Wanecki, Pavel, Jašek, Roman, Drofová, Irena, Wanecki, Pavel, Jašek, Roman, and Drofová, Irena
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The article discusses the possible effects of Directive 2022/2555 of the European Parliament (EU) and of the Council of 14 December 2022 on measures to ensure an ordinary high level of cyber security in the Union and amending Regulation (EU) No. 910/2014 and Directive (EU) 2018 /1972 and on the repeal of Directive (EU) 2016/1148 (NIS2 Directive) and subsequently to it on the Act on Cybersecurity and on the amendment of related laws (Act on cyber security), which will have to be amended concerning the NIS2 directive and their possible impacts on information security management systems (ISMS policies). The contribution aims to describe the current state of implementation of the NIS2 directive into the legal environment using the example of the Czech Republic. To outline the possible procedure of applying the implemented directive into practice and possible impacts on subjects.
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- 2023
7. Construction of a generator for power frequency magnetic field immunity test
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Pospíšilík, Martin, Drofová, Irena, Kovář, Stanislav, Dulík, Tomáš, Tesáček, Aleš, Pospíšilík, Martin, Drofová, Irena, Kovář, Stanislav, Dulík, Tomáš, and Tesáček, Aleš
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The power frequency magnetic field immunity test is a common test applied to a large variety of devices that must be checked for electromagnetic compatibility. Implementing this test is not difficult since it involves working with frequencies at which the generated magnetic field can be considered quasi-stationary. Considering the high price level of devices intended for use in electromagnetic compatibility laboratories, it may be worth contemplating assembling the equipment for this test on one's own. This paper includes a discussion on the requirements given by the relevant standards and their implications for the design of the test signal generator. Additionally, a complete design process for such equipment is provided, along with a discussion on the possibility of further improvements. The design of the test coil is adapted to allow its excitation from a powerful low-frequency amplifier, which opens up possibilities for the use of more advanced drivers. However, the test coil can also be powered using a normal mains transformer, simplifying the design of the entire device
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- 2023
8. 3D reconstruction of a group of plants by the ground multi-image photogrammetry method
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Drofová, Irena, Wang, Haozhou, Guo, Wei, Pospíšilík, Martin, Adámek, Milan, Valouch, Jan, Drofová, Irena, Wang, Haozhou, Guo, Wei, Pospíšilík, Martin, Adámek, Milan, and Valouch, Jan
- Abstract
This paper discusses the use of the terrestrial multi-frame photogrammetry method. This method is applied to a group of plants in a natural environment of a greenhouse. Image data is captured by two sensing devices with different types of lenses. Image data is used for the realistic 3D reconstruction of objects into a 3D model. In this experiment, we work primarily with the created point cloud.
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- 2023
9. Use of scanning devices for object 3D reconstruction by photogrammetry and visualization in virtual reality
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Drofová, Irena, Guo, Wei, Wang, Haozhou, Adámek, Milan, Drofová, Irena, Guo, Wei, Wang, Haozhou, and Adámek, Milan
- Abstract
This article aims to compare two different scanning devices (360 camera and digital single lens reflex (DSLR) camera) and their properties in the three-dimensional (3D) reconstruction of the object by the photogrammetry method. The article first describes the various stages of the process of 3D modeling and reconstruction of the object. A point cloud generated to the 3D model of the object, including textures, is created in the following steps. The scanning devices are compared under the same conditions and time from capturing the image of a real object to its 3D reconstruction. The attributes of the scanned image of the recon-structed 3D model, which is a mandarin tree in a citrus greenhouse in a daylight environment, are also compared. Both created models are also compared visually. That visual comparison reveals the possibilities in the application of both scanning devices can be found in the process of 3D reconstruction of the object by photogrammetry. The results of this research can be applied in the field of 3D modeling of a real object using 3D models in virtual reality, 3D printing, 3D visualization, image analysis, and 3D online presentation. © 2023, Institute of Advanced Engineering and Science. All rights reserved.
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- 2023
10. Analysis of the structure material of the bronze object in 3D models point cloud
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Drofová, Irena, Adámek, Milan, Drofová, Irena, and Adámek, Milan
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The study deals with experimental research of the material of a bronze work of art. It characterizes the visual properties of the metallic material for perception by the human eye and lists the expected undesirable properties that may affect the quality of reproduction of the work in a 3D model of point clouds. The text also presents image capture for the use of the photogrammetry method. This method was used for 3D modelling of a real object in the exterior. The human eye is a significant environment of the perception of the object and the 3D modelling process. Lighting conditions also significantly affect the quality of the captured image and its processing into a point cloud. The results of the image quality of the original art transferred to the 3D environment reveal the essential attributes of the work when capturing the image. The experiment aims to determine the fundamental aspects influencing the image work with metallic objects and its conversion in the form of point clouds into 3D models for use in virtual reality. Attention is paid to the quality and complexity of processing the reproduction of the object into a point 3D model. And the influence of the properties of the metallic material and the surrounding exterior environment on 3D modelling by photogrammetry.
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- 2022
11. The potential of using virtual reality in the field of security control in public space
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Drofová, Irena, Adámek, Milan, Malatinský, Adam, Karhánková, Michaela, Drofová, Irena, Adámek, Milan, Malatinský, Adam, and Karhánková, Michaela
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This paper discusses the potential use of virtual reality technology in the security and protection of the population. Experimental using the properties of the scanning device, the actual public environment is recorded in a panoramic 2D image and subsequently adjusted for the needs of display in a virtual environment. The text also lists selected safety requirements. The article discusses the conclusions and potential of the application as a secondary tool in security issues. © 2022 IEEE.
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- 2022
12. Reliability testing of software designed to detect people
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Adámek, Milan, Mach, Václav, Ševčík, Jiří, Drofová, Irena, Valášek, Pavel, Gabko, Lukáš, Adámek, Milan, Mach, Václav, Ševčík, Jiří, Drofová, Irena, Valášek, Pavel, and Gabko, Lukáš
- Abstract
In connection with the solution of the security situation in the world, artificial intelligence has been intensively used in recent years, which can process and solve complex problems with the help of high computer performance, data volume and machine learning algorithms. The field of face recognition and object detection has not lagged behind in this area and makes extensive use of artificial intelligence in its algorithms. The work presents the possibilities of obtaining data for the detection of persons by camera systems, at the same time the individual algorithms for face detection and identification of persons are presented. Attention is paid to the analysis of current software manufacturers for Face Recognition with subsequent testing of two separate programs and one software, which is a product of the manufacturer of camera systems. © 2022 IEEE.
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- 2022
13. Vizualizace struktury materiálu bronzu ve virtuální realitě
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Drofová, Irena, Adámek, Milan, Drofová, Irena, and Adámek, Milan
- Abstract
Tato experimentální studie si klade za cíl navrhnout a aplikovat postupy pro vizualizaci reálného objektu v prostředí virtuální reality. 3D rekonstrukce objektu fotogrammetrií je základem pro další postupy práce s 3D modelem. Pozornost je zaměřena především na práci s bronzovým materiálem a strukturou předmětu. Experiment si klade za cíl dosáhnout vysoké úrovně kvality obrazu ve virtuální realitě. V textu jsou popsány charakteristické vlastnosti materiálu a struktury, která je předmětem samostatného zpracování obrazu v digitálním 3D modelu. Dále jsou navrženy a aplikovány postupy pro další zpracování 3D modelu a úpravy jeho atributů pro export a import mezi jednotlivými software použitými v tomto experimentu. Metody 2D a 3D grafiky jsou využívány pro finální vizuální podobu objektu ve virtuální realitě a nástroje pro vytvoření originálního materiálu reálného objektu., This experimental study aims to design and apply procedures for visualizing a real object in a virtual reality environment. 3D reconstruction of the object by photogrammetry is the basis for further procedures of working with the 3D model. Attention is focused primarily on working with the bronze material and structure of the object. The experiment aims to achieve a high level of image quality in virtual reality. The text describes the characteristic properties of the material and structure, which is the subject of separate image processing in a digital 3D model. Furthermore, procedures for further processing the 3D model and modification of its attributes for export and import between the individual software used in this experiment are designed and applied. The 2D and 3D graphics methods are used for the final visual appearance of the object in virtual reality and tools for creating the original material of the real object., To eksperymentalne badanie ma na celu zaprojektowanie i zastosowanie procedur wizualizacji rzeczywistego obiektu w środowisku wirtualnej rzeczywistości. Rekonstrukcja obiektu 3D metodą fotogrametrii jest podstawą do dalszych procedur pracy z modelem 3D. Uwaga skupiona jest przede wszystkim na pracy z brązem i strukturą przedmiotu. Eksperyment ma na celu osiągnięcie wysokiego poziomu jakości obrazu w wirtualnej rzeczywistości. Tekst opisuje charakterystyczne właściwości materiału i struktury, która jest przedmiotem odrębnej obróbki obrazu w cyfrowym modelu 3D. Ponadto opracowano i zastosowano procedury dalszego przetwarzania modelu 3D i modyfikacji jego atrybutów w celu eksportu i importu pomiędzy poszczególnymi programami używanymi w tym eksperymencie. Metody graficzne 2D i 3D służą do ostatecznego wyglądu wizualnego obiektu w wirtualnej rzeczywistości oraz narzędzia do tworzenia oryginalnego materiału obiektu rzeczywistego.
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- 2022
14. Fire safety threat risk analysis for soft target
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Malatinský, Adam, Drofová, Irena, Sousedíková, Lucie, Hromada, Martin, Malatinský, Adam, Drofová, Irena, Sousedíková, Lucie, and Hromada, Martin
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The level of threat risk within soft targets is constantly increasing during the development of the company. It is, therefore, necessary to pay more attention to this issue. This article deals with a qualitative risk analysis of soft target threats. When determining the level of risk, it is essential to characterize soft targets and their types. Qualitative risk analysis of soft targets threats compares and evaluates their interrelationship. Based on this correlation, it is essential to develop criteria through which the importance and significance of threat risks can be determined within the framework of soft targets. In addition to the established and evaluated analysis, it is also essential to develop proposals for measures to minimize the effects of potential threats under soft targets. The threats relate mainly to fire safety. A specific type of soft target for this threat risk analysis is a shopping centre. © 2021 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.
- Published
- 2021
15. The role of lie detection based system in controlling borders
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Sousedíková, Lucie, Malatinský, Adam, Drofová, Irena, Adámek, Milan, Sousedíková, Lucie, Malatinský, Adam, Drofová, Irena, and Adámek, Milan
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Security engineering refers to the latest techniques and methods used to protect large numbers of people concentrated in public crowded places every day. Such a new modern method represents the Intelligent Portable Border Control System (iBorderCtrl) based on lie detection. This paper describes and analyses this automated deception detection border security system developed mainly for airport security but also for the control of the land border crossing points as roads, walkways, or train stations. The system is built using advanced and high-performance deep learning models with the aim of effectively prevent any threats or potentially dangerous situations from arising or entering the country. © 2021 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.
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- 2021
16. Comparison of the lighting condition of the interior to create a 3D background in virtual reality
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Drofová, Irena, Adámek, Milan, Sousedíková, Lucie, Malatinský, Adam, Valášek, Pavel, Drofová, Irena, Adámek, Milan, Sousedíková, Lucie, Malatinský, Adam, and Valášek, Pavel
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This article deals with capturing the image in the gallery's interior with a 3D camera in different lighting conditions. Currently, 3D backgrounds are a standard part of modelling and virtual reality. There are several ways to create a background, and there are various high-resolution 3D scanning devices. This study deals with capturing an image in the interior of a gallery with a 3D camera in different lighting conditions. The text lists the fundamental properties of light and lighting. The parameters and possibilities of capturing the image with a 3D camera are also described. The article further describes the indoor lighting conditions in the interior when using a 3D camera and compares the lighting conditions and their effect on the quality of the captured image and the goal of obtaining the best possible quality of the captured image. © 2021 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.
- Published
- 2021
17. False alarms of the contact glass-break detectors caused by the multi-chamber window
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Mach, Václav, Adámek, Milan, Drofová, Irena, Blahová, Marta, Valouch, Jan, Mach, Václav, Adámek, Milan, Drofová, Irena, Blahová, Marta, and Valouch, Jan
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The contact glass-break detector is very often marked as very unreliable and these models are not very popular in a security application. The aim of this article is to find out the bottleneck of the glass-break detectors and try to improve their functionality and reliability. The main function is based on the vibration caused by the impact on the glass panel and these vibrations are detected by the detector. However, the biggest issue is the absorption of the vibration by the glass panels and the plastic windows itself. This article should show the vibration transfer difference between the inner and outer glass panels in the multi-chamber window. This experiment should be done according to the current standardization by the two accelerometers on each side of the window. The results should be used for the further improvement of the design and reliability of the contact glass-break detectors on the market. © 2020 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.
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- 2020
18. The 3D scanning image quality of the interior with the mirror surface
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Drofová, Irena, Adámek, Milan, Mach, Václav, Drofová, Irena, Adámek, Milan, and Mach, Václav
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This article deals with the theory of digital image transmission. Image quality and possible deterioration when scanning the interior using a 3D scanner. Noise in white areas has reduced image quality. Brightness and contrast values have been changed to increase quality. This adjustment suppressed noise, but not significantly. The mirror placed in the interior created a secondary 3D model and point clouds of the scanned space. The occlusion of point clouds from both 3D models could significantly increase image quality, especially in detail. © 2020 Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved.
- Published
- 2020
19. Měření výkonnosti podniku
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Vávra, Jan, Čejchan, Petr, Drofová, Irena, Vávra, Jan, Čejchan, Petr, and Drofová, Irena
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Tato diplomová práce se zabývá problematikou systému řízení výkonnosti podniku. Cílem je provést zmapování současného způsobu měření a hodnocení výkonnosti ve společnosti Integraf, s.r.o. V první části je popsáno řízení výkonnosti podniku, klíčové ukazatele výkonnosti a tradiční i moderní metody měření výkonnosti podniku. Druhá část představuje vybraný podnik a jeho současný způsob měření výkonnosti. Poslední kapitola je věnována zhodnocení a následně návrhům a doporučením., This diploma thesis is focused on the systems of managing the productivity of company. Its goal is to carry out a review of contemporary methods of measurement and classification of erformance in the company Intergraf Ltd. First part describes the management of performance efficiency of the enterprise, Key Performance Indicator and conventional as well as modern methods of measurement of efficiency in the company. Subsequently is presented a selected company with its contemporary methods of measuring the productivity. Last section is dedicated to evaluation and recommendations., Katedra ekonomiky a managementu chemického a potravinářského průmyslu, Dokončená práce s úspěšnou obhajobou
- Published
- 2010
20. Návrh testovacího archu pro analýzu obrazu
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Fribert, Miroslav, Syrový, Tomáš, Drofová, Irena, Fribert, Miroslav, Syrový, Tomáš, and Drofová, Irena
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Studium analýzy obrazu pomocí programu Lucia Image, Anatis2. Hodnocení parametrů kvality tisku tiskového archu pomocí těchto programů., Katedra polygrafie a fotofyziky, Dokončená práce s úspěšnou obhajobou
- Published
- 2007
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