|
|
Fiber guided illumination module
Kropáč, Vlastimil ; Kvasnica, Lukáš (referee) ; Dostál, Zbyněk (advisor)
This diploma thesis describes the design of the illumination system for a Coherence--Controlled Holographic Microscope (CCHM). The theoretical part mentions the history of microscopy, the principle of holography and individual types of interference microscopy. To get closer to the topic, individual light sources and an overview of current illumination systems are mentioned. The diploma thesis also describes the procedure of designing a fiber-optic illumination module for microscopy from optical design through design of construction to the last step, which is assembly and testing of the module.
|
|
|
User programme for imaging and visualization of quantitative phase from the digital holographic microscope
Hladík, Lukáš ; Kvasnica, Lukáš (referee) ; Uhlířová, Hana (advisor)
This bachelor thesis deals with creation of an user computer program for processing of phase contrast images from a digital holographic microscope. The theoretical section of the thesis contains basic information about obtaining and evaluation of processed images, including a description of their digital representation in the computer. The experimental part deals with techniques and algorithms on which the program is built. This part also contains a description of the graphical user interface of the program and evaluate the impact of different user settings for output files properties.
|
|
|
The Three-Dimensional Digital Imaging Methods for X-ray Computed Tomography and Digital Holographic Microscopy
Kvasnica, Lukáš ; Číp, Ondřej (referee) ; Štarha, Pavel (referee) ; Chmelík, Radim (advisor)
This dissertation thesis deals with the methods for processing image data in X-ray microtomography and digital holographic microscopy. The work aims to achieve significant acceleration of algorithms for tomographic reconstruction and image reconstruction in holographic microscopy by means of optimization and the use of massively parallel GPU. In the field of microtomography, the new GPU (graphic processing unit) accelerated implementations of filtered back projection and back projection filtration of derived data are presented. Another presented algorithm is the orientation normalization technique and evaluation of 3D tomographic data. In the part related to holographic microscopy, the individual steps of the complete image processing procedure are described. This part introduces the new orignal technique of phase unwrapping and correction of image phase damaged by the occurrence of optical vortices in the wrapped image phase. The implementation of the methods for the compensation of the phase deformation and for tracking of cells is then described. In conclusion, there is briefly introduced the Q-PHASE software, which is the complete bundle of all the algorithms necessary for the holographic microscope control, and holographic image processing.
|
|
|
Multifunctional building Mlýnská, Brno
Kvasnica, Lukáš ; Žáková, Dagmar (referee) ; Májek, Jan (advisor) ; Hradil, Dušan (advisor)
The basis of the Bachelor thesis follows the studio project of mixed-use building Mlýnská in Brno. The thesis is developer into the level documentation for building permit and documentation for execution of the project. The area is located on the south part of the city center, near the the former textile industry complex called Vlněna. The main idea of the proposal is to complete undeveloped corner facing Šujan square and extend the area of the Vlněna business center with resident buildings offering high quality environment. Architectural expression of the proposed buildings is inspired by the original industrial building structure with the dominance of the masonry veneer wall. The bachelor thesis is focused on 5-storey apartment building with common underground parking floor and technical facilities. The roof of the underground parking is designed for residents as semi-private green platform, which is accessible from Mlýnská street and Ponávka designed embankment.
|
|
|
Simulation of imaging in Reflected-light Holographic Microscope with optical aberrations
Effenberger, Adam ; Kvasnica, Lukáš (referee) ; Týč, Matěj (advisor)
The aim of this work is the simulation of a moving cell on a noisy backgroud. Experience gained during this work was used for correction of artificially created data. Subsequently it was used for the correction of real experiment a data. Spyder, open source cross-platform IDE for scientific programming in the Python language, was used for it. The simulation was successful, as well as the correction of artificially created data. The correction of real experiment data was only partly suscessfull . It gives us enough room for further improvement.
|
|
|
Control of an interference-microscope optical stage based on the image phase
Kvasnica, Lukáš ; Číp, Ondřej (referee) ; Chmelík, Radim (advisor)
Digital holographic microscopy is an interferometric imaging technique, the principle of which is the off-axis image plane holography. The principle of this technique enables to reconstruct both the image intensity and the image phase from the output interferencesignal. The reconstruction can be carried out on the basis of a single image plane hologram. This leads to the possibility of a realtime image reconstruction. The speed of the reconstruction depends on the detection and the computing process. The aim of this diploma thesis is to develop user software for the control of the detection camera and for the image plane hologram reconstruction. The effort was to achieve the highest number of image reconstructions per time unit, with the maximum utilization of the data transfer between the camera and the computer.The next aim of this thesis is the stabilization of the optical table position. The method of stabilization is based on the image phase information, which is used for the control loop feedback between reconstructed image phase and the piezoelectric actuator placed inside of the optical table. Experimental results, which prove the functionality of the stabilization, are presented.
|
|
|
Design of a contemporary urban district in the context of a historic city - urban study
Kvasnica, Lukáš ; Obrtlík, Jan (referee) ; Májek, Jan (advisor)
The assignment of the diploma thesis was the design of a contemporary urban district in the context of a historical city in the details of an urban study. The area of interest is Obránců míru housing estate, which is located close to the historical core of Třebíč and at the same time stood at the beginning of the Nové Dvory district development, which was significantly influenced by the construction of the Dukovany NPP. The main goal of this thesis is to demonstrate the ability of the housing estate to adapt to today's trends to a sustainable, self-sufficient, climate and energy-resilient urban structure with the application of blue-green infrastructure and to point out the importance of intensive recycling development. The concept of the re-vision consists of the creation of a high-quality environment oriented in greenery enhancing the concept of permeability, shaping and strengthening the community coexistence of residents. The re-vision is a gradual process based on phasing, which will ensure long-term stable development with the subsequent possibility of gradual renewal / replacement of the construction of panel houses with a new structure.
|
|
|
Fiber guided illumination module
Kropáč, Vlastimil ; Kvasnica, Lukáš (referee) ; Dostál, Zbyněk (advisor)
This diploma thesis describes the design of the illumination system for a Coherence--Controlled Holographic Microscope (CCHM). The theoretical part mentions the history of microscopy, the principle of holography and individual types of interference microscopy. To get closer to the topic, individual light sources and an overview of current illumination systems are mentioned. The diploma thesis also describes the procedure of designing a fiber-optic illumination module for microscopy from optical design through design of construction to the last step, which is assembly and testing of the module.
|
|
|
Multifunctional building Mlýnská, Brno
Kvasnica, Lukáš ; Žáková, Dagmar (referee) ; Májek, Jan (advisor) ; Hradil, Dušan (advisor)
The basis of the Bachelor thesis follows the studio project of mixed-use building Mlýnská in Brno. The thesis is developer into the level documentation for building permit and documentation for execution of the project. The area is located on the south part of the city center, near the the former textile industry complex called Vlněna. The main idea of the proposal is to complete undeveloped corner facing Šujan square and extend the area of the Vlněna business center with resident buildings offering high quality environment. Architectural expression of the proposed buildings is inspired by the original industrial building structure with the dominance of the masonry veneer wall. The bachelor thesis is focused on 5-storey apartment building with common underground parking floor and technical facilities. The roof of the underground parking is designed for residents as semi-private green platform, which is accessible from Mlýnská street and Ponávka designed embankment.
|
|
|
The Three-Dimensional Digital Imaging Methods for X-ray Computed Tomography and Digital Holographic Microscopy
Kvasnica, Lukáš ; Číp, Ondřej (referee) ; Štarha, Pavel (referee) ; Chmelík, Radim (advisor)
This dissertation thesis deals with the methods for processing image data in X-ray microtomography and digital holographic microscopy. The work aims to achieve significant acceleration of algorithms for tomographic reconstruction and image reconstruction in holographic microscopy by means of optimization and the use of massively parallel GPU. In the field of microtomography, the new GPU (graphic processing unit) accelerated implementations of filtered back projection and back projection filtration of derived data are presented. Another presented algorithm is the orientation normalization technique and evaluation of 3D tomographic data. In the part related to holographic microscopy, the individual steps of the complete image processing procedure are described. This part introduces the new orignal technique of phase unwrapping and correction of image phase damaged by the occurrence of optical vortices in the wrapped image phase. The implementation of the methods for the compensation of the phase deformation and for tracking of cells is then described. In conclusion, there is briefly introduced the Q-PHASE software, which is the complete bundle of all the algorithms necessary for the holographic microscope control, and holographic image processing.
|
guest ::
