Results 121 to 130 of about 2,512 (152)

Terrestrial laser scanner applied to fluvial geomorphology

2020
Terrestrial laser scanner (TLS) offers an unprecedented combination of sub-cm resolution, mm precision and survey extent that uniquely captures the geometry of individual pebbles and allows the spatial variability of channel evolution to be quantified precisely.
openaire   +2 more sources

Development and application of a simple terrestrial laser scanner

2018
<p>Since the texture of surfaces plays a key role in the shaping of many environmental processes, high resolution measurements are important to study these phenomena. Specifically, 3-D point cloud data is desirable to document river shape and evolution, surface roughness, and erosion-sedimentation processes.
Sean Plenner, William E. Eichinger, Marian Muste, E. Arthur Bettis   +3 more
openaire   +1 more source

3D surface reconstruction of Terrestrial Laser Scanner data for forestry

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
Recently, Terrestrial Laser Scanners (TLS) have received considerable attention for their potential applications in forest management, archaeology, ecology as well as remote sensing and urban planning applications. Although TLS is limited in its use in small areas, it is feasible to be applied to forest inventory and deliver better sampling accuracy ...
Hongjoo Park, Samsung Lim, John C. Trinder, Russell Turner   +3 more
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Application of terrestrial laser scanners for forest monitoring

Prirodoobustrojstvo
The forest is an important human habitat. Monitoring forestry is essential to sustain life on Earth. Monitoring can be carried out using both Earth remote sensing methods and ground-based survey methods. The purpose of this article is to describe a methodology for studying the possibility of using mobile laser scanners to form a three-dimensional ...
S.V. Shaitura, S.V. Shaitura, S.V. Shaitura, A.S. Mukhin, S.M. Ustinov   +4 more
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The Accuracy of a Scene Geometry Based on the Terrestrial Laser Scanner Measurements

2017
The article presents the theoretical estimation of the accuracy of the distance measurements between 3D points measured by a scanning system, a description of the experiments carried out and results for Faro X, Z+F Imager and Trimble TX scanners. The result of the experiments shows the correctness of the theoretical estimation and terrestrial laser ...
Przemyslaw Kowalski, Krzysztof Skabek
openaire   +1 more source

Independent Model Triangulation of Terrestrial Laser Scanner Data

2003
Transforming the coordinates of different laser scanning stations into a unique object reference system is mostly performer pairwise, using retro-reflective targets as tie points. This may lead to inconsistencies and model deformations. We propose a different approach, based on the simultaneous adjustment of all 3D models coming from different views ...
Scaioni M., Forlani G.
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Structure Reconstruction of Indoor Scene from Terrestrial Laser Scanner

2019
Indoor scene reconstruction from point cloud data provided by Terrestrial laser scanning (TLS) has become an issue of major interest in recent years. However, the raw scanned indoor scene is always complex with severe noise, outliers and incomplete regions, which produces more difficulties for indoor scene modeling.
Xiaojuan Ning, Jie Ma, Zhiyong Lv, Qingzheng Xu, Yinghui Wang 0001   +4 more
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Terrestrial Laser Scanner Surveying in Coastal Settings

2014
Over the last decade, there has been a proliferation of commercially available tripod-mounted Terrestrial Laser Scanner (TLS) systems that use the phase difference or the time-of-flight of emitted pulses of light to rapidly acquire high-density topographic and surface reflectance data.
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A Procedure for accuracy Investigation of Terrestrial Laser Scanners

2011
Surveying instruments have to meet certain specifications in order to provide the necessary accuracy standards for a certain application. The main purpose of testing a used terrestrial laser scanner (TLS) is does an instrument still meets factory accuracy standards or not.
Delčev, Siniša, Pejić, Marko, Gučević, Jelena, Ogrizović, Vukan   +3 more
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A terrestrial 3D laser scanner: accuracy tests

2001
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PELLEGRINELLI, Alberto, BALZANI, Marcello, N. Perfetti, F. Uccelli   +3 more
openaire   +2 more sources