National Repository of Grey Literature 22 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
3D model of the selected object
Veselý, Milan ; Nosek, Jakub (referee) ; Kalvoda, Petr (advisor)
The aim of the thesis was to assess the accuracy of photogrammetric results from images taken with a low-cost Xiaomi Mi 10T Pro camera and a professional digital SLR camera Canon EOS 6D Mark II with a 24 mm fixed lens. The chapel of St. John of Nepomuk near Guntramovice was chosen as the subject for the images. Forty-nine insertion and control points were targeted and scanned at the chapel. Block and beam alignment and creation of 3D mesh models was performed in Bentley ContexCapture software. The standard deviations of all three axes (X, Y, Z) and positional standard deviation on the control points and deviations relative to a reference point cloud acquired with a ground-based laser scanner were statistically tested. The results show that, with the right imaging and processing methods, comparable results can be achieved using a low-cost camera.
3D model of the selected object
Prokop, Jaromír ; Nosek, Jakub (referee) ; Kalvoda, Petr (advisor)
The subject of this diploma thesis is the creation of four georeferenced 3D models of the Chapel of Virgin Mary Help in Brno-Líšeň using images from two cameras, a digital reflex camera Canon EOS 6D Mark II and a low-cost camera Xiaomi Mi 10T Pro mobile phone, in two photogrammetric software, Bentley ContextCapture and Agisoft Metashape Professional. The accuracy of the models was analysed using checkpoints measured by a total station and a reference point cloud from the laser scanning of the chapel. One of the models was presented using Sketchfab on the internet, another one was 3D printed.
Using of the annotation scale to draw a purpose map in MicroStation
Plisková, Anna ; Nosek, Jakub (referee) ; Berková, Alena (advisor)
The aim of the bachelor thesis was focused on the use of annotation scale for drawing in MicroStation V8. Annotation scale can be used to draw cells, user lines, texts and dimension styles, and hatching. The main task of the work was to rework the existing library of cells and the library of lines for scale 1: 1000 into a library containing elements of size in millimetres, according to ČSN 01 3411 Large scale maps – Drawings and markers. There was also described how the MicroStation V8 works, when drawing a map in a drawing model using annotation scale – from project creation, uploading the libraries using annotation scale to a new created project, creating the dgnlib control file and task panel, to inserting elements when drawing the map. To check the functionality of the reworked libraries of cells and lines, were used measured data to create a thematic map of the Observatory on Kraví hora in Brno, which was measured in the second year of bachelor’s degree in the subject Mapping I.
Consolidation and processing of data from a permanent GNSS station CADM
Nosálková, Karolína ; Kuruc, Michal (referee) ; Nosek, Jakub (advisor)
The aim of this bachelor's thesis was to process and the quality control check of the data from the permanent CADM station. The CADM station is located in the AdMaS research center. The raw observation data from 2018-2021 were converted to the standard RINEX format with a sampling frequency of 10s and 30s. GNSS data quality control was performed using the G-NUT / Anubis program. The daily coordinates of the station were calculated in the Trimble Business Center program with a connection to the nearest EUREF Permanent Network stations. The processing of time series of coordinates and the calculation of the resulting ETRF2000 coordinates were performed using own scripts in the MATLAB programming.
Mapping Survey of surroundings of the evangelic church in Růžďka
Hanáková, Alžběta ; Nosek, Jakub (referee) ; Kuruc, Michal (advisor)
The objective of this bachelor’s thesis is surveying the surrounding of the evangelical church in Růžďka by tacheometrical method and creating thematical large scale map. This thesis descibes the whole process, from terrain reconnaissance, creating a survey net, surveying itself and following calculation and graphic processing which was done in softwares Groma, ATLAS and Microstation V8i. The result is thematical map in 1:250 scale, which is connected to binding geodetic reference systems and meets the requirements of the 2nd accuracy class according to ČSN 01 3410.
Testbed for virtual commissioning of PLC system
Nosek, Jakub ; Dvorský, Petr (referee) ; Arm, Jakub (advisor)
This work deals with the creation of a testbed for the virtual commissioning of a PLC system in the Unity environment using the Game4Automation tool, where the simulation will take place. The PLC system will be from Siemens. In the future, a fully functional testbed will simulate the production process and, depending on its behavior, change the parameters of the PLC program or even modify the program itself. Within this work, the main task was to create a suitable data structure and at the same time a functional communication module for connecting the simulation with a future application with an optimization algorithm. We managed to create a functional monitoring of the simulation in its own data structure and a functional sending to the server containing the monitored data, the principle of which guarantees the preservation of all data, regardless of the speed of communication between environments. The simulation monitoring is very detailed and was able to reliably record all collisions with the monitored elements. At the same time, a PLC process program, a redesigned simulation program in Unity and a new REST-API server with a data structure in JSON format were created in this work.
Constitutional and Legal Aspects of the Development of the Party System in Chzechoslovakia after 1989
Nosek, Jakub ; Švec, Kamil (advisor) ; Marková, Klára (referee)
This bachelor thesis is focused on democratic transition and forming of pluralist political system at the federal level of Czechoslovak federal state which took its start during so called velvet revolution in November 1989 and meant rejection of previous not competitive model of one party rule which did not accepted real opposition and have only tolerated satellite political parties to Communist party of Czechoslovakia, that did not opposed its monopolist model of government. After fell of the communist regime gradually emerged and crystalized a pluralist party system. First part of this thesis is focused on theory of democratic transition and consolidation subsequently there is space dedicated to the theory of political parties and party systems. Second part is single case study dedicated to description of the Czechoslovak transition with regard to theoretical concepts of the theory of democratic transition and consolidation and through content analysis of relevant laws and constitutional laws are observed emergence and subsequent forming of pluralist party system at the federal level of the Czechoslovak Federative Republic. Powered by TCPDF (www.tcpdf.org)
Acceleration of PPP Integer Ambiguity Resolution When Emploing Ionospheric Delays
Nosek, Jakub ; Václavovic, Pavel ; Zhao, Lewen ; Douša, Jan
Precise Point Positioning (PPP) is a powerful method for GNSS data processing, when observations from only one receiver are utilized. Since any systematic error is not eliminated by between-stations differencing, introduced precise products and models are crucial for precise positioning. While precise satellite orbits and clocks corrections are essential for traditional float PPP, satellite phase biases are required for integer ambiguity resolution (PPP-AR). When considering also local ionospheric and tropospheric parameters, the integer ambiguity resolution is achievable very fast, which helps to reduce the initial convergence significantly. When exploiting such precise atmospheric corrections, the solution can be considered an alternative for the popular Real Time Kinematic (RTK) method. Therefore, the solution is usually abbreviated by PPP-RTK. We processed daily GNSS data from EUREF Permanent Network (EPN) using PPP, PPP-AR, and PPP-RTK. The tropospheric delay was not introduced as a product but estimated together with other parameters. The assessment of the convergence time has shown a significant benefit of the resolved integer ambiguities. The average time to reach 10 cm horizontal accuracy was 22, 11, and 7 min when processing in PPP, PPP-AR, and PPP-RTK mode, respectively. The first fixed epoch was obtained after 10 and 2 minutes in the case of PPP-AR and PPP-RTK, respectively. The accuracy assessment of Slant Total Electron Content (STEC) estimated at collocated stations showed their good consistency expressed by the average standard deviation of 0.08 TEC Units.
Influence of the Number of Control Points on Mobile Laser Scanning Accuracy
Nosek, Jakub ; Kalvoda, Petr ; Kuruc, Michal ; Volařík, Tomáš
Mobile laser scanning (MLS) is currently commonly used in a number of surveying applications, such as large-area mapping. This paper focuses on the effect of the number of control points on the resulting accuracy of MLS point clouds. The MLS cloud was compared with reference data in the form of a high-precision test point field and a terrestrial laser scanning reference cloud. Testing confirmed the manufacturer's requirements for the maximum spacing of control points 100 m. Matching with a higher density (up to 50 m spacing) allows eliminating local deformations in MLS clouds.
Accuracy Assessment of Photogrammetric Results from Low Cost and Professional Camera
Prokop, Jaromír ; Nosek, Jakub ; Kalvoda, Petr ; Veselý, Milan
The aim of the article was to assess the accuracy of photogrammetric results using images of a low-cost camera, a Xiaomi Mi 10T Pro mobile phone, and a Canon EOS 6D Mark II professional digital reflex camera. A total of 51 control and checkpoints were created at the chapel, and it was scanned by a terrestrial laser scanner. Bundle block adjustment and mesh model generation were performed using Bentley ContextCapture. 2D standard deviations and standard deviations of elevation at checkpoints and deviations from the reference terrestrial laser scanning point cloud were statistically tested. The results show that with a suitably selected imaging configuration, high-quality photogrammetric results can be achieved even with a low-cost camera

National Repository of Grey Literature : 22 records found   1 - 10nextend  jump to record:
See also: similar author names
7 Nosek, Jan
3 Nosek, Jaromír
20 Nosek, Jiří
1 Nosek, Josef
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