Results 1 to 10 of about 7,093 (119)
Remote Sensing, 2023 The scale of digital elevation models (DEMs) is vital for terrain analysis, surface simulation, and other geographic applications. Compared to traditional super-resolution (SR) methods, deep convolutional neural networks (CNNs) have shown great success ...
Guodong Chen +5 more
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The Refined Gravity Field Models for Height System Unification in China
Remote Sensing, 2022 A unified height datum is essential for global geographic information resource construction, ecological environment protection, and scientific research.
Panpan Zhang +6 more
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ISPRS International Journal of Geo-Information, 2021 This work shows improvements of geoid undulation values obtained from a high-resolution Global Geopotential Model (GGM), applied to local urban areas.
Norberto Alcantar-Elizondo +3 more
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Earth and Planetary Physics, 2020 Global geopotential models have not included the very high frequencies of the Earth’s external gravity field. This is called omission error. This omission error becomes more important in mountainous areas (areas with highly variable topography). The work
Paul Gautier Kamto +4 more
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Deep learning-based automated terrain classification using high-resolution DEM data
International Journal of Applied Earth Observations and Geoinformation, 2023 Landforms are a fundamental component of the natural environment, and digital terrain mapping on a large spatial scale is important when studying landforms. In this study, we adopted a semantic segmentation model in computer vision to classify elementary
Jiaqi Yang +5 more
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Remote Sensing, 2020 Unification of the global vertical datum has been a key problem to be solved for geodesy over a long period, and the main challenge for a unified vertical datum system is to determine the vertical offset between the local vertical datum and the global ...
Panpan Zhang +7 more
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Super-resolution for terrain modeling using deep learning in high mountain Asia
International Journal of Applied Earth Observations and Geoinformation, 2023 High Mountain Asia (HMA) is characterized by some of the most complex and rugged terrain conditions in the world. However, high resolution terrain data are not easy to quickly acquire from the area due to difficulties in accessing the region.
Yinghui Jiang +4 more
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Exploring the relationship between avalanche hazard and run list terrain choices at a helicopter skiing operation [PDF]
Natural Hazards and Earth System Sciences, 2019 While guides in mechanized skiing operations use a well-established terrain selection process to limit their exposure to avalanche hazard and keep the residual risk at an acceptable level, the relationship between the open/closed status of runs and ...
R. Sterchi, P. Haegeli, P. Mair
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Geodesy and Cartography, 2018 In this study, we computed and presented grid maps of high-resolution terrain corrections and residual terrain model (RTM) as short-wavelengths of the gravity field and the geoid in Niger.
Salissou Ibrahim Yahaya, Driss El Azzab
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Remote Sensing, 2021 Separating point clouds into ground and nonground points is an essential step in the processing of airborne laser scanning (ALS) data for various applications. Interpolation-based filtering algorithms have been commonly used for filtering ALS point cloud
Feng Li +4 more
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