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Ultra-resolution unmanned aerial vehicle (UAV) and digital surface model (DSM) data-based automatic extraction of urban features using object-based image analysis approach in Gurugram, Haryana
Unmanned aerial vehicles (UAV) have emerged as flexible, swift, and economical imaging systems that have proven their feasibility in urban...
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Digital geoTwin: A CityGML-Based Data Model for the Virtual Replica of the City of Vienna
This paper presents a CityGML-based data model developed for the semantic 3D city model of Vienna, Austria. The data model consists in a profile of...
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Digital Relief Models
Digital relief models provide a digital elevation and/or bathymetry representation of the earth surface onto which data from remote sensing...
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Processing CORONA image for generation of Digital Elevation Model (DEM) and orthophoto of Bilaspur district, Himachal Pradesh
Declassified CORONA images provide stereo pairs that could be used for preparation of Digital Elevation Models (DEMs) and orthophotos that could be...
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Assessing the Role of sUAS Mission Design in the Accuracy of Digital Surface Models Derived from Structure-from-Motion Photogrammetry
The mission design used to acquire imagery with small unmanned aerial systems (sUAS) incorporates decisions that determine the quality and accuracy...
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An approach to extracting digital elevation model for undulating and hilly terrain using de-noised stereo images of Cartosat-1 sensor
A digital elevation model (DEM) is established as an essential geospatial dataset requisite for many topographical and environmental applications....
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Evaluating the potential of digital twin derived from UAV imagery in vegetation monitoring of downtown streams
Downtown streams flowing through city centers are very narrow (less than 10 m wide) while distributed over long distances (at least more than 10 km)....
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The Methodological Approach of Assessing Urban Vertical Expansion Using Satellite Remote Sensing Techniques
Recently, the change of urban landscape has been widely discussed and recognized that understanding urban change is vital for decision-makers to plan...
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Assessing the accuracy of open-source digital elevation models for the geomorphological analysis of very small islands of Indonesia
Digital elevation models (DEMs) are used for many geosciences studies; hence, their accuracy is essential. Throughout the world, there are many small...
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Comparison and Validation of Elevation Data at Selected Ground Control Points and Terrain Derivatives Derived from Different Digital Elevation Models
Digital elevation model (DEM) is a precisely defined 3D representation of terrain surface. DEM from satellite imageries have grown in popularity over...
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Enriched Semantic 3D Point Clouds: An Alternative to 3D City Models for Digital Twin for Cities?
Digital Twins (DTs) for cities represent a new trend for city planning and management, enhancing three-dimensional modeling and simulation of cities....
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Inter-comparison and assessment of digital elevation models for hydrological applications in the Upper Mahi River Basin
This study evaluates and compares the accuracy and reliability of multiple freely available digital elevation models (DEMs) including Copernicus...
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Evaluation of vertical accuracy of different digital elevation models sources for Buraydah city
Digital Elevation Models (DEMs) are used in a variety of applications and in different scientific disciplines. Analysis of the DEM datasets for these...
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Orthophoto improvement using urban-SnowflakeNet
With the increasing use of drones for capturing images in urban areas, correcting for distortion and sawtooth effects on orthophotos generated with...
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Semi-automatic extraction of land degradation processes using multi sensor data by applying object based classification technique
A semi-automated method has been developed for the extraction of land degradation processes using multi sensor data by applying an object-based...
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Comparative assessment of the GIS based bathtub model and an enhanced bathtub model for coastal inundation
Coastal zones are dynamic spaces where human activities and infrastructure are exposed to natural forces, climate change and extreme weather events...
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Digital Soil Map** for Hydropedological Purposes of the Cathedral Peak Research Catchments, South Africa
Conventional soil map** in montane environments is often a difficult and laborious task, given access difficulties, the topography of the...
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Glaciology: Mass Balance of Very Small Glaciers on Mount Kenya During 2016–2018
In 1929, 17 glaciers were identified on Mount Kenya. Later, the glacier inventory of 2004 reported the presence of only 10 glaciers, which were...
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Deep Learning Low-cost Photogrammetry for 4D Short-term Glacier Dynamics Monitoring
Short-term monitoring of alpine glaciers is crucial to understand their response to climate change. This paper presents a low-cost multi-camera...
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Digital geoTwin Vienna: Towards a Digital Twin City as Geodata Hub
Virtual 3D city models usually evolved from other geodata sets and were not set up from scratch. As traditional geodata used to be only 2D and 2.5D...
