|
|
Route control
Dolobáč, Dávid ; Janáková, Ilona (referee) ; Richter, Miloslav (advisor)
This thesis sets itself the task to detect geometric changes, located on a previously known route, which is considered as a template or pattern. Geometric changes represent rigid transformations of objects in a scene, specifically their rotation, displacement and their combinations. Another type of change is the addition of new or removal of original objects. The original route is captured with a monocular camera and by using methods of photogrammetry, a 3D model of a scene in a point representation is reconstructed from the video sequence. In the same manner, a 3D model of the scene containing changes is created, but this model captures only the local section of the original route. This local point cloud is registered in the 3D model of the original route, so that the 3D models can be directly compared with each other. The investigated space is divided into cubic voxels of the same size which are successively traversed and the degree of similarity of local surfaces is investigated for each of them. The solution results in 3D points from both clouds marked as changed or unchanged. The mentioned methods are tested on real data in scenarios with different geometric modifications of the scene and the evaluation of change detection is implemented as in the case of a binary classifier.
|
|
|
Easter eggs scanning module
Pitrun, Tomáš ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
This master thesis deals with the design and implementation of a preparation for scanning the museum's collection of Easter eggs. A monochrome line scan camera combined with RGB lighting and stepper motor is used to capture the Easter eggs. The control of the whole fixture is solved by using an Arduino Mega microcontroller in combination with the developed PCB. The data from the camera are processed in software on a PC using Matlab. Finally, a 3D model of the easter egg with the scanned texture is created using the Processing library.
|
|
|
The use of 3D technologies in the realizatation of road constructions
Bartlík, Aleš ; Tejkal, David (referee) ; Hýzl, Petr (advisor)
This bachelor's thesis deals with the possibilities of using 3D technologies in the realization of road constructions. The first part of the thesis contains general information about BIM, its advantages and obstacles and describes the use of construction machines including their connection with the 3D model of the construction. In the second, practical part, a specific construction site is assessed where a 3D model was used to guide construction machines.
|
|
|
3D model registration with depth camera data
Boháč, Daniel ; Věchet, Stanislav (referee) ; Adámek, Roman (advisor)
Tato práce se zaměřuje na úlohu 3D rozpoznání objektu a odhadu jeho transformace na základě dat získaných z hloubkové kamery. Konkrétně jde o mračna bodů, přičemž jedinou referencí pro dané objekty jsou jejich 3D modely. Cílem práce je vybrat vhodný algoritmus na základě provedené rešerše, implementovat řešení využívající tento algoritmus, ověřit jeho funkčnost a identifikovat jeho limity. Práce představuje snadno použitelnou a rozšiřitelnou knihovnu napsanou v C++, která je dostupná také prostřednictvím Pythonu. Tato knihovna využívá postup identifikovaný během rešerše, který řeší danou úlohu pomocí globálních deskriptorů. Nakonec je řešení ověřeno na umělých i reálných datech.
|
|
|
Use of BIM Model in the Design of the Renovation of Historic Buildings
Hrubovčáková, Andrea ; Mésároš, Peter ; Kozlovská, Mária ; Spišáková, Marcela
The article explores the practical application of Building Information Modelling (BIM) in renovating historical buildings, focusing on the digitalization process and the integration of fourth and fifth dimensions into the information model. It addresses challenges encountered when working with irregularly shaped buildings lacking preserved project documentation. Additionally, it examines the advantages and disadvantages of linking 3D elements with time and cost considerations. The authors present a methodology, a sequential approach tailored for BIM model utilization in historic building restoration, which was specifically validated through a case study of a historic church building in Rudník village. The methodology proposes a comprehensive framework applicable to the restoration of various historical buildings. The article contributes a generally applicable methodology for leveraging BIM models in historic building restoration, facilitating design and implementation processes across diverse historical contexts.
|
|
|
Comparison of 1D and 3D Hydrodynamic Models in Designing a Hydraulic Object of a Dry Reservoir
Skokan, Jiří ; Dráb, Aleš ; Duchan, David
This article describes and compares computational and result differences in 1D and 3D hydrodynamic models, which are used for capacity assessment of flow control structures. The paper focuses on a considered dry retention reservoir located on the Kotojedka stream near the city of Kroměříž, Czech Republic. Based on project documentation, a detailed 1D steady hydrodynamic model using functions of Microsoft Excel and its native VBA language was created for the functional object. The parameters of the functional object were optimized based on the results of the 1D model. During the 1D analysis, some uncertainties occurred which cannot be addressed using standard or even more complex hydraulic analytical methods, such as formation and course of hydraulic jump, manifestation of overflow and bottom inlet submergence and water surface elevation profile in apron. Experimental physical model research was not undertaken in this case due to the high cost of the model relative to its lower significance compared to other, much larger water structures. Therefore a 3D steady hydrodynamic model could bring the required solution in this case and provide the basis for object parameters optimisation. A 3D model was created using Flow – 3D software. The results were compared on a series of QN flow rates from Q10 to Q10000, where QN represents the discharge with a repetition period of once in every N years.
|
|
|
Design of a Crash-Test Dummy
Sedláčková, Martina ; Coufal, Tomáš (referee) ; Bilík, Martin (advisor)
The main objective of this thesis is construction of crash test dummy for vehicle-pedestrian crash tests. There is review of nowadays used crash test dummies types in the introduction of this thesis. This is followed by part describing construction itself. Chapter about construction begins by characterizing of used materials features in relation with real human body physiology. Main part of chapter is describing construction of crash test dummy’s skeleton and its individual components including 3D modelling and strength analysis. Thesis is finished by cost assessment.
|
|
|
Documentation bridge using terrestrial scanning
Ferencová, Anna ; Kalvoda, Petr (referee) ; Hanzl, Vlastimil (advisor)
The aim of this bachelor work is to scan with help of ground-based scanner bridge structure, which is part of the area of faculty of building VUT in Brno. Content of this work is theoretical base and consecutive practical elaboration of measured data. The result is effectuation of 3D model and examination of accuracy on control points.
|
|
|
2-stroke Engine for Small Mechanization
Böhm, Milan ; Píštěk, Václav (referee) ; Rauscher, Jaroslav (advisor)
This diploma thesis includes progress constructional design of 2 - stroke engine for small mechanization, using modern tools of computer aided design. In the first part is mentioned short summary contemporary types small mechanization with 2 - stroke engines. Follows part devoted conceptual design with calculation of the main dimensions of engine cylinder. After assesment strength load of cranked mechanism, is effected stress analysis of connection rod, whose design and modeling is part of work, how by the help of analytical figures from appropriate literature so by final element method. Last part of those work is estimation results with presentation parameters, which affect power of 2 - stroke engines for small mechanization.
|
|
|
Person Identification
Svědiroh, Stanislav ; Honec, Peter (referee) ; Richter, Miloslav (advisor)
This thesis focuses on the person identification based on faces. The aim is to create a working solution of person identification for the authentication purposes utilizing the Microsoft Kinect v2 sensor. It contains a summary of the most used algorithms for facial data description and their comparison. Thesis also proposes a PC program that controls the sensor and collects the facial data, saves them, manages keypoint detection and their comparison.
|
guest ::
