Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/55452
Title: Accurate triangular regular network adjustment to large digital elevation models
Authors: Santana, José M. 
Trujillo, Agustín 
Suárez, José P. 
Ortega, Sebastián 
Keywords: 33 Ciencias tecnológicas
metadata.dc.subject.other: Triangular regular networks
Adjustment
Digital elevation model
Level of detail
Terrain visualization
Issue Date: 2017
Abstract: Nowadays, large volumes of terrain data are available to use as Digital Elevation Models, from which coarser meshes can be progressively generated for visualization and other purposes. Previous studies compared different methods to adjust those meshes, concluding that no method performs the best for all kinds of terrain. In this work, a pipeline to accurately adjust TRNs to DEM is proposed. An initial approximation is calculated by solving a linear system from input data. Vertices with a major contribution to the global error of the mesh are then tuned using a local refinement algorithm. Experimentation shows that meshes adjusted using the proposed pipeline fit better the original DEM than ones generated using classic methods as linear interpolation for several benchmark elevation models.
URI: http://hdl.handle.net/10553/55452
ISBN: 978-80-86943-44-2
ISSN: 2464-4617
Source: WSCG 2017: full papers proceedings: 25th International Conference in Central Europe on Computer Graphics, Visualization and Computer Visionin co-operation with EUROGRAPHICS Association, p. 107-115
Appears in Collections:Actas de Congresos

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