Results 11 to 20 of about 968 (174)
Assessment of Errors Caused by Forest Vegetation Structure in Airborne LiDAR-Derived DTMs [PDF]
Remote Sensing, 2017 Airborne Light Detection and Ranging (LiDAR) is a survey tool with many applications in forestry and forest research. It can capture the 3D structure of vegetation and topography quickly and accurately over thousands of hectares of forest.
Jake E. Simpson +2 more
doaj +3 more sources
Monitoring the Dynamics of Formby Sand Dunes Using Airborne LiDAR DTMs [PDF]
Remote Sensing, 2021 Coastal dunes play an important role in coastal erosion risk management, where they act as a dynamic natural sea defence line. Formby coast is part of the Sefton coast in the Northwest of England and is one of the largest and most rapidly evolving sand dune systems in the UK.
Ahmed Mutasim Abdalla Mahmoud +4 more
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A Robust Filtering Algorithm of LiDAR Data for DTM Extraction [PDF]
Proceedings of the 2nd International Conference On Systems Engineering and Modeling, 2013 For DTM extraction of road linear project from LiDAR data, this paper proposes a robust ground filtering algorithm. Firstly, a pyramidal hierarchical structure of ground candidate points is formed. Secondly, in each level, the Thin Plate Spline (TPS) surface interpolation is iteratively used to produces smooth surfaces, and based on the points ...
Yang Ming, Chu Jiang Chen
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Analysis of the factors affecting LiDAR DTM accuracy in a steep shrub area [PDF]
International Journal of Digital Earth, 2010 The creation of a quality Digital Terrain Model (DTM) is essential for representing and analyzing the Earth in a digital form. The continuous improvements in the acquisition and the potential of airborne Light Detection and Ranging (LiDAR) data are increasing the range of applications of this technique to the study of the Earth surface. The aim of this
Javier Estornell +3 more
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GENERATION OF REFERENCE VEHICLE TRAJECTORIES IN REAL-WORLD SITUATIONS USING AERIAL IMAGERY FROM A HELICOPTER [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Highly accurate reference vehicle trajectories are required in the automotive domain e. g. for testing mobile GNSS devices. Common methods used to determine reference trajectories are based on the same working principles as the device under test and ...
F. Kurz +13 more
doaj +1 more source
Remote Sensing, 2016 We examine the utility of Structure from Motion (SfM) point cloud products to generate a digital terrain model (DTM) and estimate canopy heights in a woodland ecosystem in the Texas Hill Country, USA.
Jennifer L. R. Jensen, Adam J. Mathews
doaj +1 more source
Shaping pre-modern digital terrain models: The former topography at Charlemagne's canal construction site. [PDF]
PLoS ONE, 2018 The use of remote sensing techniques to identify (geo)archaeological features is wide spread. For archaeological prospection and geomorphological mapping, Digital Terrain Models (DTMs) on based LiDAR (Light Detection And Ranging) are mainly used to ...
Johannes Schmidt +2 more
doaj +1 more source
Development of a stream DTM generation methodology using UAV-based SfM and LiDAR point cloud. [PDF]
Sci RepFiltering ground points and generating accurate Digital Terrain Models (DTMs) are crucial for hydrological and ecological modeling in riverine environments. This paper proposes a methodology for DTM generation in stream areas by integrating point clouds from a UAV-based structure from motion (SfM) and light detection and ranging (LiDAR) while applying ...
Gou J +5 more
europepmc +3 more sources
METHODS FOR THE UPDATE AND VERIFICATION OF FOREST SURFACE MODEL [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 The digital terrain model (DTM) represents the bare ground earth's surface without any objects like vegetation and buildings. In contrast to a DTM, Digital surface model (DSM) represents the earth's surface including all objects on it.
M. Rybansky +4 more
doaj +1 more source
Preparation of High-Resolution DTM and Orthophoto Using LiDAR in Nepal
Journal on Geoinformatics, Nepal, 2020 The high-resolution terrain model has varied usages including development planning, engineering works, environmental management, disaster management, urban planning, irrigation, geological study, archeological study and cadastral application. Currently, this data is not available for Nepal and it has also hindered the socio and economic development of ...
Abhash Joshi, Sumeer Koirala
openaire +2 more sources