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Derivation of digital terrain models from laser scanning data and its use for updating of heights of ZABAGED
Dušánek, Petr ; Potůčková, Markéta (advisor) ; Brázdil, Karel (referee)
The topic of diploma theses is creation of Digital Terrain Models from air- borne laser scanning data. This technique of gathering data about ground surface is one of the newest and development of applications is widely spread at academical field but also in last few years it has become real interest of leaders at market with Photogrammetric and GIS software. The main part of work is concentrated at creation of own algorithm for filte- ring of point cloud. There are mentioned the results and critically shown problems and imperfections. For this theses were used data landed by Department of Photogrammetry of Land Survey Office in Pardubice. For this reason there are mentioned suggestions for gathering better point cloud, which probably would be also used for modeling of 3D objects at ground surface. Keywords Airborn Laser Scanning, Filtration, DTM Supervisor Ing. Markéta Potůčková, Ph.D. iv
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Topographic mapping of rock formations with the use of airborne laser scanning data
Lysák, Jakub ; Potůčková, Markéta (advisor) ; Brázdil, Karel (referee) ; Šíma, Jiří (referee)
Abstract This thesis focuses on topographic mapping of rock formations with the use of new technologies in a comprehensive manner, from airborne laser scanning (ALS) data acquisition and processing in rocky terrains, followed by their processing to the content of topographic databases and their cartographic processing in maps. The introduction discusses issues of importance for practice, and the relation between topographic mapping of rocks and other fields of human activity. The ALS section describes products for topographic mapping of rocks derived from ALS data, and discusses the specifics of ALS data acquisition and processing in wooded rugged terrain. Existing solutions of this problem are explained and their limitations are identified. Author's own approaches to solving this task are presented as case studies, including three made a further three designed experiments with ALS data processing and evaluation of their results. Recommendation regarding mapping of sandstone landscapes in Czechia have been also addressed. The topographic section describes the current representation of rocks and related objects in the ZABAGED database (Czech national digital topographic database), explains the historical context, analyzes this data and identifies their shortcomings in relation to the ALS. Research...
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Cartographic Aspects of Remote Sensing Materials
Bělka, Luboš ; Voženílek, Vít (advisor) ; Brázdil, Karel (referee) ; Talhofer, Václav (referee)
Kartografické aspekty materiálů dálkového průzkumu Země Cartographic Aspects of Remote Sensing Materials Disertační práce Mgr. Luboš Bělka ABSTRAKT Předmětem disertační práce je komplexní výzkum tvorby kartografických děl obsahujících materiály dálkového průzkumu Země. Autor se zaměřuje na ortofotografické zobrazení území (ortofotomapa) z pohledu základního a účelového geografického produktu. Disertační práce se zabývá výchozími podklady a metodami tvorby ortofotomap, základním (topografickým) a účelovým (tematickým) obsahem ortofotomap a zobrazovacími prostředky pro jeho vyjádření při vyváženém použití obrazové a znakové složky. Hlavním cílem disertační práce je vyhodnocení současné tvorby ortofotomap, včetně jejich kritického posouzení, sestavení metodiky jejich tvorby a formou případových studií předložit možné varianty tvorby perspektivních ortofotomap zejména pro účely státní správy a územní samosprávy a motivovat k odborné diskuzi k problémovým otázkám včetně základních konceptů ortofotomap, zobrazovacím metodám apod. KLÍČOVÁ SLOVA: ortofotomapa, kartografie, geoinformatika, dálkový průzkum Země, obsah ortofotomapy ABSTRACT Orthophotographic projection of territory (orthophotomap) as a basic and special geographic product is the main subject of the thesis. The research is focused on a proper...
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Derivation of digital terrain models from laser scanning data and its use for updating of heights of ZABAGED
Dušánek, Petr ; Brázdil, Karel (referee) ; Potůčková, Markéta (advisor)
The topic of diploma theses is creation of Digital Terrain Models from air- borne laser scanning data. This technique of gathering data about ground surface is one of the newest and development of applications is widely spread at academical field but also in last few years it has become real interest of leaders at market with Photogrammetric and GIS software. The main part of work is concentrated at creation of own algorithm for filte- ring of point cloud. There are mentioned the results and critically shown problems and imperfections. For this theses were used data landed by Department of Photogrammetry of Land Survey Office in Pardubice. For this reason there are mentioned suggestions for gathering better point cloud, which probably would be also used for modeling of 3D objects at ground surface. Keywords Airborn Laser Scanning, Filtration, DTM Supervisor Ing. Markéta Potůčková, Ph.D. iv
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