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Object Detector for Robotic Workplace
Kneslík, Martin ; Bambušek, Daniel (referee) ; Materna, Zdeněk (advisor)
The main goal of this thesis was to create an algorithm for detection and tracking of colored cubes using the Kinect Azure depth camera and integrate this algorithm into the ARCOR2 system. The solution uses color filtering of the input image, the DBSCAN algorithm for finding clusters in the pointcloud, and RANSAC for plane detection. The detection is evaluated on a custom dataset with an accuracy of 91%. The user of the ARCOR2 system can use the results of this work in a demonstration workstation in the robotics lab, where robots will manipulate the colored cubes detected by the algorithm.
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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.
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The surveing of specific elements in the area of Admas
Koukal, Pavel ; Kalvoda, Petr (referee) ; Hanzl, Vlastimil (advisor)
The diploma thesis consists of two fundamental parts. The first part is focused on scanning a section of the Admas area by a terrestrial laser scanner. This section describes the introduction to laser scanning, necessary utilities and software, fieldwork, the process from the registration of a point cloud, through point cloud processing to its connection into the S-JTSK. The second part of the thesis is mostly focused on execution of the digital model of the relief from the acquired data. It also deals with the two methods of creating a cross-sectional drawing of the area - one is based on the digital model of the relief and the other on data obtained by the polar method. The outcome of the thesis is to assess the accuracy of the topographical model, based on the comparison with the polar method.
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Detection of spatial objects in a point cloud
Venený, Petr ; Machotka, Radovan (referee) ; Volařík, Tomáš (advisor)
The diploma thesis deals with processing of a point cloud that was collected via mobile mapping system. The first part sets a theoretical background, starting with mapping in general moving to mobile mapping systems and their particular parts. The practical part describes the whole process of data collecting, testing the automatic detection of spatial objects based on a point cloud and its visualisation. The results of the diploma thesis are GIS data layers and an evaluation of the process.
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Construction phase in the building information model
Richterová, Zuzana ; Hanzl,, Vlastimil (referee) ; Berková, Alena (advisor)
The diploma thesis deals with the creation of construction phases in the building information model, which were created with the use of data from the design documentation of passport, data from the actual measurements taken mainly by laser scanning and the design documentation of reconstruction. This thesis describes the procedure from fieldwork (acquisition of measurement data), through its processing, to the final drawings including also the model in *.rvt format. The focus of the thesis is on the project phases, for which the issues arising in their creation are described. The stumbling block in this thesis was the inconsistency in the design documentations, which was mainly reflected in the creation of the model of the reconstruction phase. All the pitfalls that occurred in the thesis are explained in the text.
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Terrestrial laser scanning
Endlicherová, Lucie ; Volařík, Tomáš (referee) ; Hanzl, Vlastimil (advisor)
This diploma thesis is focused on determine the characteristics of accuracy of the terrestrial laser scanner FARO Focus 3D S120. It is validated the recommended distance between the objects (targets and spheres) and the terrestrial scanner. Next it is tested accuracy of the Cartesian coordinates X, Y, Z measured by laser scanning with resolution 1/2. At the end it is investigated the accuracy of the area determination in X coordinate gained by the scanning of a smooth slightly curved surface.
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Digital terrain model for morphological purposes
Olšovský, Vít ; Tajovská,, Kateřina (referee) ; Hanzl, Vlastimil (advisor)
The aim of the thesis is measuring a part of a Svratka’s meander by the means of the FARO focus 3D X 130 scanner and a total station. Another part of the thesis is creating 3D models from individual methods and their comparison. The acquired data is processed in the SCENE, Microstaion Power Draft V8 and Atlas DMT programmes. The accuracies of the scan registrations and the resulting differences among individual methods are evaluated.
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Tabletop Object Detection
Varga, Tomáš ; Zemčík, Pavel (referee) ; Španěl, Michal (advisor)
This work describes the issue of tabletop object detection in point cloud. Point cloud is recorded with Kinect sensor. Designed solution uses algorithm RANSAC for plane detection, algorithm Euclidean clustering for segmentation and ICP algorithm for object detection. Algorithm ICP is modified and mainly it can detect rotational symetric objects and objects without any transformation against it's models. The final package is build on platform ROS. The achieved results with own dataset are good despite of the limited functionality of the detector.
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