|
|
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.
|
|
|
Object Detection in the Laser Scans Using Convolutional Neural Networks
Marko, Peter ; Beran, Vítězslav (referee) ; Veľas, Martin (advisor)
This thesis is aimed at detection of lines of horizontal road markings from a point cloud, which was obtained using mobile laser mapping. The system works interactively in cooperation with user, which marks the beginning of the traffic line. The program gradually detects the remaining parts of the traffic line and creates its vector representation. Initially, a point cloud is projected into a horizontal plane, crating a 2D image that is segmented by a U-Net convolutional neural network. Segmentation marks one traffic line. Segmentation is converted to a polyline, which can be used in a geo-information system. During testing, the U-Net achieved a segmentation accuracy of 98.8\%, a specificity of 99.5\% and a sensitivity of 72.9\%. The estimated polyline reached an average deviation of 1.8cm.
|
|
|
Documentation of Rokštejn using laser scanning
Schwarz, Jakub ; Kalvoda, Petr (referee) ; Hanzl, Vlastimil (advisor)
The aim of this thesis is the measure of the Rokštejn castle by laser scanning. The measured data are processed in the SCENE software and accuracy of registration and transformation of scans is intended. The next step is to test the software for working with point cloud. In the end, is in the selected 3D software created 3D model of the castle by using processed point cloud.
|
|
|
Classification of a point cloud from airborne and mobile scanning
Borový, Ján ; Kuruc, Michal (referee) ; Volařík, Tomáš (advisor)
This diploma thesis deals with the classification of the point clouds taken by different carrier and with various density. The terrain model and building models were created from provided data sets. Also the software equipment is described. Achieved outcomes of elaboration are presented in each corresponding chapter. In conclusion, the overall evaluation and assessment of the results of processing is done.
|
|
| |
|
|
Evaluation of laser scanning for 3D modelling
Oboňová, Veronika ; Kohout, Jan (referee) ; Volařík, Tomáš (advisor)
The aim of the diploma thesis is to create a 3D model of the given object using laser scanning technology. Subsequent adjustments of the model and its separate preparation for possible 3D printing will be done through appropriate programs. The next 3D model of the identical object will be made based on the created photos and will be edited and prepared in the same way for possible 3D printing.
|
|
|
Image processing and depth maps to create an interactive model
Gelo, Lukáš ; Adámek, Roman (referee) ; Appel, Martin (advisor)
This bachelor’s thesis deals with creation of communication protocol for Intel® RealSense™ cameras in MATLAB, creation of program which finds certain objects in image using depth map and implementation of this program into mechatronic exponate. Theoretical part deals with methods of depth and distance scanning. It clarifies principles of contactless and nondestructive measurement of depth and distance along with comparison of their advantages and disadvantages.
|
|
|
Analysis of an accuracy of laser scanning
Vacová, Dominika ; Kohout, Jan (referee) ; Volařík, Tomáš (advisor)
The main goal of this master thesis is processing a point cloud with respect of possibilities of a registration clouds based on reference objects or on objects in general. This thesis studies transformations to the reference coordinate system S –JTSK. The first part of this thesis describes a theoretical background of the laser scanning and its use. A practical part shows the results and the evaluation of whole research.
|
|
|
Structured-light 3D scanner
Hadzima, Jaroslav ; Chromý, Adam (referee) ; Jelínek, Aleš (advisor)
3D scanner is a device capable of creating a model using analysis, most commonly from image data. 3D scanners could be divided into two major groups, contact and noncontact scanners. Aim of this study is to interpret problematics of 3D scanning with structured light. Specifically usage of Gray code patterns. There is step by step evaluation of individual hardware and software obstacles and possible errors, from calibration to final point cloud. In next section, there are included tests determining quality, precision and accuracy of scanning with given method. System is applicable to mobile robots and yet fully remotely controlled. The majority of enumerations is taking place in Raspberry Pi 3 model B, just visualization alone is done from computer.
|
|
|
Object Detection Using Kinect
Švec, Ján ; Zahrádka, Jiří (referee) ; Španěl, Michal (advisor)
This bachelor's thesis deals with the object detection using Kinect. Kinect is a motion sensing input device by Microsoft company for the Xbox 360 video game console. The objective of this work was to evaluate the existing approaches and practices for the detection not only using the image from the camera but also depth map (RGB-D sensor). The work deals in details with RoboEarth tool, its installation, settings, creation of 3D model and the detection. Performance of the RoboEarth tool was in the work investigated experimentally and also evaluated.
|
guest ::
