|
|
Surface Reconstruction from Point Clouds
Knot, Stanislav ; Beran, Vítězslav (referee) ; Španěl, Michal (advisor)
This diploma thesis deals with the processing of point clouds captured by the Kinect sensor from single position. As part of this thesis an application was designed, which is able to register and reconstruct surface using selected methods. The registration of overlapping frames is based on computation of key points and their FPFH histograms from which the estimation of correspondence is computed. This estimation is then refined and redundant point filtering is performed. Surface is reconstructed from the registered and modified point cloud using Greedy Projection Triangulation. All computations are performed offline. The output of this application is textured polygonial model and an image for texture creation. With assumption of correctly set parameters the results are in a good quality for creation of virtual tours and visualization.
|
|
|
Optical measurement of edema of limb
Šeptun, Roman ; Chmelík, Jiří (referee) ; Harabiš, Vratislav (advisor)
This thesis deals with methods of edema measuring. In my work, I designed hardware and software solutions for a device reconstructing surface of the limb part. Purpose of my work is evaluating discussing possibilities of this device. For making 3D reconstruction of scene from 2D images I made reconstruction program. For acquisition of images a device controlled by Arduino platform was constructed, the whole device is realized in program language Matlab. In the end of the thesis is described, how to improve the device for using in real conditions.
|
|
|
Teoretické výpočty interakce adsorbátu s orientovanými povrchy Si
Krejčí, Ondřej ; Kocán, Pavel (advisor) ; Ondráček, Martin (referee)
In this work I briefly described the basic ideas of density functional theory (DFT) for calculations of an electronic structure of molecules, solids and surfaces. I also summarized the fundamentals of DFT based Fireball code that was used for calculations of the atomic and electronic structures of several models. Fur- ther I described theory of scanning tunnelling microscopy (STM) and mentioned some approaches of simulating STM maps by means of results of DFT calcula- tions. The studied models were reconstructions of a Si (111) surface, namely the 7×7, 2×1 Pandey chain and reconstructions with periodicity √ 3 × √ 3, where finding proper atomic structure, fitting to a new experimental observations, was required. I compared energetic favourableness of the reconstructions. I also stud- ied an adsorption of benzene on 7×7. I have analysed the atomic and electronic structure of all the models and made STM simulations using STM code. I com- pared the results with experimental STM maps in literature and with results of the STM experiments made by RNDr. Pavel Kocán, Ph.D. (reconstruction v √ 3 × √ 3) and by Prof. Alastair McLean (benzene on 7×7). Probable model of observed metastable reconstruction √ 3 × √ 3 was found. The proof that benzene chamisorbate in so called di-σ-bridge position was also made. 1
|
|
| |
|
|
Optical measurement of edema of limb
Šeptun, Roman ; Chmelík, Jiří (referee) ; Harabiš, Vratislav (advisor)
This thesis deals with methods of edema measuring. In my work, I designed hardware and software solutions for a device reconstructing surface of the limb part. Purpose of my work is evaluating a discussing possibilities of this device. For making 3D reconstruction of scene from 2D images I chose reconstruction method Structure from motion. For acquisition of 2D images a device controlled by Arduino platform was constructed, the whole device is realized in program language Matlab. In the end of the thesis is described, how to improve the device for using in real conditions.
|
|
|
Theoretical calculation of stability and electronic structure of Si surfaces
Krejčí, Ondřej ; Kocán, Pavel (advisor) ; Szabová, Lucie (referee)
ÁÒ Ø × ÛÓÖ Á Ö Ý ×ÙÑÑ Ö Þ ¹ Ò Ø Ó Ñ Ø Ó × ÓÖ ÓÑÔÙØ Ø ÓÒ Ò ØÓÑ Ò Ò Ð ØÖÓÒ ×ØÖÙ ØÙÖ Ó ÑÓÐ ÙР׸ ×ÓÐ ×Ø Ø × Ò Ø Ö ×ÙÖ × Ô ÖØ ¹ ÙÐ ÖÐÝ Á ÔÙÖ×Ù Ò× ØÝ ÙÒ Ø ÓÒ Ð Ø ÓÖÝž Ì Ò Á × Ö Ø Ñ Ø Ó Ó Ö ÐÐ × ÑÙÐ Ø ÓÒ Ô Ö ¸ Û × × ÓÒ Ø Ò× ØÝ ÙÒ Ø ÓÒ Ð Ø ÓÖÝž Ï Ø Ö ÐÐ Á Ñ ÓÑÔÙØ Ø ÓÒ× Ó Ø Ð ØÖÓÒ ×ØÖÙ ØÙÖ Ó Ë Ð ÓÒ ÙÐ Ò ÓÑÔÙØ Ø ÓÒ× Ó Ø ØÓÑ Ò Ø Ð ØÖÓÒ ×ØÖÙ ØÙÖ Ó Ö ÓÒ×ØÖÙ Ø ÓÒ× 2×1¸ Ô'2×2µ Ò '4×4µ Ó Ë '½¼¼µ ×ÙÖ ž Á ÓÑÔ Ö ÑÝ Ö ×ÙÐØ× Û Ø ÔÖ ¹ Ú ÓÙ×ÐÝ Ñ Ò ÔÙ Ð × ÓÑÔÙØ Ø ÓÒ× Ò ÜÔ Ö Ñ ÒØ× Ö ž ËÙ × ÕÙ ÒØÐÝ Á Ô Ö ÓÖÑ ËÌÅ × ÑÙÐ Ø ÓÒ× Ó Ø × Ö ÓÒ×ØÖÙ Ø ÓÒ׸ Û Á Ð×Ó ÓÑÔ Ö Û Ø Ø ÜÔ Ö Ñ ÒØ Ð Ø ž ½
|
|
|
Reconstruction of Human Hand Surface for the Purpose of Biometric Recognition of Persons
Svoboda, Jan ; Drahanský, Martin (referee) ; Dluhoš, Ondřej (advisor)
The goal of this work is to create a device and design an algorithm for the recostruction of human hand surface for the purpose of biometric recognition of persons. First of all existing approaches to human hand surface reconstruction are introduced. Subsequently the theoretical base of the methods used in the solution is shown. Also, the device con- struction is presented in more detail to the reader. After that the reconstruction algorithm implementation is described. In the end, experiments and results are presented.
|
|
| |
|
|
Tvorba aplikace pro rekonstrukci povrchu z mračna bodů
Jandora, Filip
This bachelor thesis is dedicated to the surface reconstruction from a point cloud. With this application it is possible to smooth out and reconstruct loaded point cloud and then use it as an object. Application is based on the C ++ programming language supported by Qt and PCL libraries.
|
guest ::
