Feature-based enhancement of multi-resolution topographic surface

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10328291" target="_blank" >RIV/00216208:11310/16:10328291 - isvavai.cz</a>
Result on the web
<a href="http://iccgis2016.cartography-gis.com/6iccgis-2016-proceedings/" target="_blank" >http://iccgis2016.cartography-gis.com/6iccgis-2016-proceedings/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13140/RG.2.2.33019.92964" target="_blank" >10.13140/RG.2.2.33019.92964</a>

Result language
angličtina
Original language name
Feature-based enhancement of multi-resolution topographic surface
Original language description
Many representations of topographic surface providing graphical, three-dimensional, multi-resolution model of entire planet have been developed. However, current solutions to such a representation of topographic surface suffer from the lack of geometric flexibility and accuracy on boundaries with models of other geographic features. Therefore, this work focuses on a more functional representation of a multi-resolution topographic surface. For this sake we introduce a simplification algorithm, which is designed to build the multiple LOD database of features. The method utilizes the Global Indexing Grid (GIG) as a paging mechanism. For any position of the observer within the 3D virtual environment, the indexing structure determines the position-dependent LOD of currently visible features and underlying terrain. The simplification algorithm guarantees for any observer position the preservation of topological relations between simplified geometries of features in the position-dependent LOD visualization of the Earth surface. Based on the precomputed classification of the elevation points and multiple LOD database of features, the surface is reconstructed using constrained Delaunay triangulation at run-time.
Czech name
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Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
6th International Conference on Cartography and GIS
ISBN
—
ISSN
1314-0604
e-ISSN
—
Number of pages
8
Pages from-to
643-650
Publisher name
Bulgarian Cartographic Association
Place of publication
1, Chr. Smirnenski Blvd. Sofia, Bulgaria
Event location
Albena, Bulgaria
Event date
Jun 13, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000385790600067

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