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Shape variability of diatom frustules during the life cycle.
Woodard, Kateřina ; Kulichová, Jana (advisor) ; Kleisner, Karel (referee)
The determination of diatom species is mostly based on morphology of a silicified cell wall. It is complicated by the fact of cell diminution during the vegetative phase of the life cycle, which is conected with shape changes and loss of some taxonomically importat characters. Even though the diminution during the life cycle is generally known phenomeon, there is a lack of studies on this theme. In this masters thesis, four monoclonal populations of model pennate diatom strains were used in order to study shape dynamics during the life cycle. The strains were cultivated for almost three years and parts of the cultures with a different size stages were fixed in permanent preparations. The digital photographs of the cells were used as a material for the geometric morphometrics analyses. The study revealed high contribution of significant allometric changes to an overall shape variability. During the vegetative phase of the life cycle, disparity of the cells increases and complexity of the cells decreases. The contribution of symetric variability to an overall shape variability is more than eighty percent. Phenotypic plasticity in a monoclonal populations is an interesting finding from an evolutionary point of view. It may indicate constraints caused by the silica cell wall. During the size diminution...
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Geometric morphometrics of diatom frustules.
Hubáčková, Kateřina ; Kulichová, Jana (advisor) ; Pichrtová, Martina (referee)
This bachelor thesis includes a theoretical and a practical part. In the theoretical part, I focused problematic parts of research of diatoms biology. I will discuss morphology of specific silica scale and its morphogenesis; life cycle, characteristic by the size diminution in vegetative phasis, and conception of taxonomy of these organisms which is rather complicated because of unclear species concept. Another part presents tools of geometric morphometrics which is rapidly developing method for investigation and quantification of biological shape. In the practical part, I present the results from own research. This experiment is preliminary study for diploma thesis and its purpose is to appropriate tools of geometric morphometrics and to present advantages of its methods. I will investigate morphological disparity of three strains of pennate diatoms cultivated in standard conditions studied by landmark methos. The aim of this study is to discover if small cells which have gone trough the long phasis of vegetative multiplication and are close to the sexual reproduction have diferent degree of morphological variability than the bigger ones just undergone by sexual process.
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Regional disparities and their possible solutions
Kahánková, Jana ; Boháčková, Ivana (advisor) ; Zdeňka, Zdeňka (referee)
The main topic of the dissertation is mapping of regional disparities in Czech Republic. It is focused at regions of NUTS 3 level. NUTS 3 coresponds the level of lowest territorial administrative region of state administration (district and region level). The dissertation is devided in two parts, theoretical and practical. Theoretical part includes solutions from scholar literature and reliable sources. Practical part is oriented on regional differences in economic and social dimension. The research of regional disparities by selected indicators is the key part of this dissertation. The dissertation aim is quantification of regional differences and follow-up evaluation of applied measures towards regions.
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Marginální a periferní regiony (vybraná území obcí s pověřeným obecním úřadem) v Jihomoravském kraji
Suchá, Andrea
This thesis deals with the marginal and peripheral regions (at the level of administrative districts of the municipalities with an authorized municipal office) in the South Moravian Region. The subject of this thesis is the evaluation of three selected regions, a description of their socio-demographic characteristics, from which the marginality and the territory peripheries can be studied. The work is complemented with the time series (population, basic index), the line charts, and also with the relevant cartograms. The future regional development in selected municipalities with an authorized municipal office has been captured through the linear trend function until 2020.
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Binocular vision
Němcová, Andrea ; Šanda, Jaroslav (referee) ; Fedra, Petr (advisor)
This bachelor thesis deals with the physiology of binocular vision for obtaining three-dimensional perception from two-dimensional images when using special glasses. It focuses on anatomy and physiology of the human eye and vision as inseparable parts of binocular vision, and on binocular vision as such. The work also mentions terms related to vision and describes the evolution of binocular vision during the human life. The important part of this thesis is the description of the emergence of three-dimensional perception from two two-dimensional pictures (stereogram). The thesis explains the principles of 3D projection methods, especially those which use active or passive glasses, and briefly describes the possibilities of 3D projection without glasses. The practical part includes a plan of capturing dynamic scenes where important parameters which affect the video capturing are described. The plan provides a description of a dynamic scene design with respect to the possibility of verification of human physiological parameters. Described scenes were captured by two identical cameras and edited in appropriate software. These videos were shown to a group of viewers whose task was to evaluate the videos from both subjective and objective points of view.
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Calculating disparity map from color stereo images
Kulíková, Barbora ; Nováček, Petr (referee) ; Klečka, Jan (advisor)
This bachelor’s thesis deals with a creation of the depth maps. The first chapter concerns with the physiology of a human space perception and the methods of displaying the 3D content which are the topics closely related to the depth map, its creation and practical usage. Subsequently, there is a chapter focused on the description of the used methods of the image processing. The fundamental theoretical chapter deals with the methods of computing the disparity and used principles. In the practical part of the thesis an application has been made with a user interface in the Matlab environment. The application enables the user to create the disparity maps through the local and global methods. The functionalism of the application and the implementation of the methods are experimentaly verified. An experiment comparing the methods and analyzing influence of the local method parameters on the quality of the depth map has been made. The last part of the thesis was to create a simple stereopicture database.
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Search of Corresponding Objects in a Pair of Images
Vrbenský, Andrej ; Herman, David (referee) ; Orság, Filip (advisor)
This thesis is aimed on area of stereoscopy. At first, there is some space dedicated to stereoscopic theory, primarily to seaching of corresponding objects in a stereo image pair. Main attention is given to template matching methods, which are based on intesity comparison. Then we try to optimize these methods with SIMD SSE instructions and run some tests with image examples. These methods are implemented in C++ and also in assembly language.
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FIT Inner Stereopanorama
Štechr, Vladislav ; Přibyl, Bronislav (referee) ; Juránková, Markéta (advisor)
This bachelor thesis is about combination of stereoscopic and panoramic photography. It describes creation of panoramas especially by stitching a set of images. Principles of depth perception and possibilities of stereoscopic images projection are discussed. This thesis includes software for presentation stereopanoramic pictures of Faculty of Information Technology interiors on the Internet and its description.
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Java applets for image processing
Čišecký, Roman ; Číka, Petr (referee) ; Šmirg, Ondřej (advisor)
The bachelor´s thesis is concerned with image processing techniques such as calculating his-togram and its equalization, image filtering in frequency and time domain, creating panoramic pictures and creating a disparity map This thesis describes the various methods of image processing and their use in practice. The last part deals with creating particular applications for image processing and its transformation to applets executable on the web.
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Common Image Stereo-Pair Processing for Simple Stereo-Geometry
Peloušek, Jan ; Schimmel, Jiří (referee) ; Říha, Kamil (advisor)
This Bachelor´s thesis considers the basics of epipolar geometry, explains the process of the automatic correspondency detection, describes principals of the fundamental matrix computation and finally the virtual camera view morphing between two images. There were described some of the basic Intel´s OpenCV library functions joined with this issue and describes de facto the computer stereo-pair processing. As a part of this thesis, there is the application, programmed in the C++ language in the Borland C++ Builder 6.0 developer´s environment by using the OpenCV library. This application demonstrates some of here-mentioned terms such as the fundamental matrix computation and the virtual camera view morphing. In relation to the Borland C++ Builder 6.0 using there was described the integration method of OpenCV to this environment.
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