Results 81 to 90 of about 219,149 (197)

Improved Target Laser Capture Technology for Hexagonal Honeycomb Scanning

Photonics, 2023
In laser tracking systems, capturing moving targets is a prerequisite to guaranteeing a tracking system’s performance. Previous studies have confirmed that the capture probability of hexagonal spiral scanning is higher than that for other scanning ...
Bing Jia, Fan Jin, Qiongying Lv, Yubing Li   +3 more
doaj   +1 more source

Extracting More Data from LiDAR in Forested Areas by Analyzing Waveform Shape [PDF]

, 2012
Light Detection And Ranging (LiDAR) in forested areas is used for constructing Digital Terrain Models (DTMs), estimating biomass carbon and timber volume and estimating foliage distribution as an indicator of tree growth and health. All of these purposes
Adams, Thomas, Beets, Peter, Parrish, Christopher   +2 more
core   +3 more sources

AIRBORNE LASER SCANNING AND LANDSCAPE ARCHAEOLOGY

Opuscula Archaeologica, 2018
Airborne lidar (Light Detection And Ranging), ALS or ALSM (Airborne Laser Scanning, Airborne Laser Swath Mapping) is an active remote sensing tech- nique, which records the surface of the earth using laser scanning. ALS allows very precise three-dimensional mapping of the surface of the earth, producing high-resolution topographic data, even where ...
openaire   +3 more sources

Assessment of Wooded Area Reduction by Airborne Laser Scanning [PDF]

Forests, 2015
Airborne Laser Scanning (ALS) data hold a great deal of promise in monitoring the reduction of single trees and forests with high accuracy. In the literature, the canopy height model (CHM) is the main input used frequently for forest change detection.
Thi Tran, Markus Hollaus, Ba Nguyen, Norbert Pfeifer   +3 more
openaire   +1 more source

The use of terrestrial laser scanning for measurements in shallow-water : correction of the 3D coordinates of the point cloud [PDF]

, 2015
Although acoustic measurements are a wide-spread technique in the field of bathymetry, most systems require a water depth of at least 2 m. Furthermore, mapping shallow-water depths with acoustic techniques is expensive and complicated.
De Wulf, Alain, Deruyter, Greet, Glas, Hanne, Stal, Cornelis, Vanhaelst, Marc   +4 more
core   +1 more source

What does airborne LiDAR really measure in upland ecosystems? [PDF]

, 2015
Copyright © 2014 John Wiley & Sons, Ltd.Airborne laser scanning systems (Light Detection And Ranging, LiDAR) are very well suited to the study of landscape and vegetation structure over large extents.
Aguilar, Anderson, Anderson, Backshall, Bain, Barber, Barbier, Belyea, Beven, Beven, Charman, Chassereau, Clawges, Danson, Emanuel, Espindola, Evans, Fisher, Fisher, Grand-Clement, Harris, Hinsley, Hodgson, Holden, Holden, Hutton, Ivanov, Jenson, Jones, Kincey, Korpela, Lane, Li, Lindsay, Mitchell, Moore, Rango, Rothwell, Strahler, Streutker, Taylor, Turnbull, Vierling, Watt, Wise, Zimble   +45 more
core   +1 more source

Extreme flood-driven fluvial bank erosion and sediment loads: direct process measurements using integrated Mobile Laser Scanning (MLS) and hydro-acoustic techniques: Direct measurement of flood-driven erosion using MLS and MBES [PDF]

, 2016
Copyright © 2016 John Wiley & Sons, Ltd. This methods paper details the first attempt at monitoring bank erosion, flow and suspended sediment at a site during flooding on the Mekong River induced by the passage of tropical cyclones.
Aalto, Rolf, Best, James L., Darby, Stephen E., Hackney, Christopher R., Lague, Dimitri, Leyland, Julian, Nicholas, Andrew P., Parsons, Daniel R.   +7 more
core   +4 more sources

Railway line identification using airborne laser scanning

Acta Scientiarum Polonorum Formatio Circumiectus, 2015
The investigations was to recognize the elements of the railway line on the airborne point clouds and using this type of studies in Engineering Geodesy. The object was elaborate on the part of the railway line in the Bochnia City. Such works contains an overview of LiDAR technology and an airborne laser scanning, the identification of the elements of ...
Izabela Piecha, Bartłomiej Pysz
openaire   +1 more source

Riparian vegetation classification from airborne laser scanning data with an emphasis on cottonwood trees [PDF]

, 2006
The high point density of airborne laser mapping systems enables achieving a detailed description of geographic objects and the terrain. Growing experience indicates, however, that extracting useful information directly from the data can be difficult. In
Farid, A, Goodrich, DC, Marsh, SE, Rautenkranz, D, Sorooshian, S   +4 more
core   +1 more source

Extraction of tidal channel networks from airborne scanning laser altimetry and aerial photography [PDF]

, 2003
The study of the morphodynamics of tidal channel networks is important because of their role in tidal propagation and the evolution of salt-marshes and tidal flats. Channel dimensions range from tens of metres wide and metres deep near the low water mark
Lohani, B., Mason, David Cecil, Wang, H-J.   +2 more
core   +1 more source