Results 21 to 30 of about 704,317 (311)

Digital Terrain Model Geospatial Modelling

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The modelling means the world object cognition based on the analogy. This analogy presents an idea and material imitation of some properties of the existing world. It is processed by various anthropogenic objects, in which the chosen properties are presented, defined and characterised as shapes and relations of original objects.
Robert Sasik, Jakub Srek, Alessandro Valetta   +2 more
openaire   +1 more source

Considerações sobre o LiDAR na análise de instabilidade de vertentes

Terr@ Plural, 2020
The digital models of landform representation allow several types of geomorphological analysis, such as assessing prone areas to the mass movement. Among the data set that applied to elaborate such models, LiDAR (Light Detection and Ranging) technology ...
Tiago D. Martins, Chisato Oka-Fiori, Bianca Carvalho Vieira, Carlos Bateira   +3 more
doaj   +1 more source

FOSS4G date assessment on the isprs optical stereo satellite data. A benchmark for DSM generation [PDF]

, 2017
The ISPRS Working Group 4 Commission I on "Geometric and Radiometric Modelling of Optical Spaceborne Sensors", provides a benchmark dataset with several stereo data sets from space borne stereo sensors.
Crespi, Mattia, Di Rita, Martina, Nascetti, Andrea   +2 more
core   +1 more source

Modelling the spatial distribution of DEM Error [PDF]

, 2005
Assessment of a DEM’s quality is usually undertaken by deriving a measure of DEM accuracy – how close the DEM’s elevation values are to the true elevation.
Bolstad P V, Burrough P A, Carlisle B H, Carlisle B H, Day T, Ehlschlaeger C R, Eklundh L, Evans I S, Fisher P, Fotheringham A S, Fotheringham A S, Giles P T, Guth P, Horn B K, Hunter G J, Kumler M P, Li Z, McDermid G J, Monckton C, Sasowsky K C, Theobald D M, Weibel R, Wood J D, Zevenbergen L W   +23 more
core   +1 more source

Spectral filtering as a method of visualising and removing striped artefacts in digital elevation data [PDF]

, 2008
Spectral filtering was compared with traditional mean spatial filters to assess their ability to identify and remove striped artefacts in digital elevation data. The techniques were applied to two datasets: a 100 m contour derived digital elevation model
Albani, Arrell, Arrell, Baltsavias, Bishop, Brocklehurst, Brunson, Champeney, Chen, Christensen, Cooper, Dobrin, Dragut, Felicismo, Fisher, Fisher, Flood, Florinsky, Garbrecht, Guth, Hannah, Hassan, Hengl, Hodgson, Holmes, Hunter, Hutchinson, Jenson, Klinkenberg, Kok, Kumler, Little, Liu, Miliaresis, Moore, Peucker, Pike, Prima, Rayner, Richie, Sithole, Sithole, Su, Temme, Thapa, Walker, Wilson, Wise, Wise, Wise, Wood, Wood   +51 more
core   +1 more source

Sparsity-Driven Digital Terrain Model Extraction [PDF]

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Preprint. Paper published in IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, Valencia, 2018, pp.
Nar, Fatih, Yilmaz, Erdal, Camps-Valls, Gustau   +2 more
openaire   +4 more sources

Single beam bathymetric data modelling techniques for accurate maintenance dredging

Egyptian Journal of Remote Sensing and Space Sciences, 2014
Most ports have dredged channels, berths and anchorages. Such infrastructure suffers from siltation which reduces the depth available for shipping, at which, maintenance dredging is required.
Ahmed I. EL-Hattab
doaj   +1 more source

THE EXPLAINABILITY OF GRADIENT-BOOSTED DECISION TREES FOR DIGITAL ELEVATION MODEL (DEM) ERROR PREDICTION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Gradient boosted decision trees (GBDTs) have repeatedly outperformed several machine learning and deep learning algorithms in competitive data science.
C. Okolie, C. Okolie, C. Okolie, J. Mills, A. Adeleke, J. Smit, I. Maduako   +6 more
doaj   +1 more source

Soil-terrain modelling and erosion analysis at field scale level, a case study

Soil and Water Research, 2009
Pedometrical methods and digital soil mapping represent a progressive approach to the evaluation of various terrain-related soil processes. A detailed digital terrain model was used for the analysis of erosion - sedimentation situation and description of
Tereza Zádorová, Lukáš Brodský, Marcela Rohošková   +2 more
doaj   +1 more source

SEMIGLOBAL MATCHING RESULTS ON THE ISPRS STEREO MATCHING BENCHMARK [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Digital surface models can be efficiently generated with automatic image matching from optical stereo images. The Working Group 4 of Commission I on "Geometric and Radiometric Modelling of Optical Spaceborne Sensors" provides a matching benchmark ...
P. d'Angelo, P. Reinartz
doaj   +1 more source