Results 51 to 60 of about 6,775,431 (345)

Under-canopy UAV laser scanning for accurate forest field measurements

open access: yesIsprs Journal of Photogrammetry and Remote Sensing, 2020
Surveying and robotic technologies are converging, offering great potential for robotic-assisted data collection and support for labour intensive surveying activities.
E. Hyyppä   +13 more
semanticscholar   +1 more source

FEASIBILITY OF MULTISPECTRAL AIRBORNE LASER SCANNING FOR LAND COVER CLASSIFICATION, ROAD MAPPING AND MAP UPDATING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
This article summarises our first results and experiences on the use of multispectral airborne laser scanner (ALS) data. Optech Titan multispectral ALS data over a large suburban area in Finland were acquired on three different dates in 2015–2016.
L. Matikainen   +5 more
doaj   +1 more source

THE FOUR-MASTED BARQUE PEKING IN VIRTUAL REALITY AS A NEW FORM OF KNOWLEDGE TRANSFER [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Virtual Reality (VR) has established itself in recent years in the geosciences through its application in the immersive visualization of spatial data.
T. P. Kersten   +3 more
doaj   +1 more source

Neural Colorization of Laser Scans

open access: yes, 2021
Marc Comino Trinidad, Carlos Andujar, Carles Bosch, Antonio Chica, and Imanol Muñoz ...
Comino Trinidad, Marc   +4 more
openaire   +3 more sources

2-Photon Laser Scanning Microscopy on Native Human Cartilage [PDF]

open access: yes, 2005
Martini J, Tönsing K, Dickob M, Anselmetti D. 2-Photon Laser Scanning Microscopy on Native Human Cartilage. In: Proceedings of SPIE - The International Society for Optical Engineering. Vol 5860.
Michael Dickob   +7 more
core   +1 more source

Two-photon laser scanning fluorescence microscopy using photonic crystal fibre [PDF]

open access: yes, 2004
We report the application of a simple yet powerful modular pulse compression system, based on photonic crystal fibres which improves upon incumbent twophoton laser scanning fluorescence microscopy techniques.
McConnell, G., Riis, E.
core   +4 more sources

INVESTIGATIONS INTO THE QUALITY OF IMAGE-BASED POINT CLOUDS FROM UAV IMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The quality of image-based point clouds generated from images of UAV aerial flights is subject to various influencing factors. In addition to the performance of the sensor used (a digital camera), the image data format (e.g.
H.-J. Przybilla   +2 more
doaj   +1 more source

COMPARATIVE GEOMETRICAL INVESTIGATIONS OF HAND-HELD SCANNING SYSTEMS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
An increasing number of hand-held scanning systems by different manufacturers are becoming available on the market. However, their geometrical performance is little-known to many users. Therefore the Laboratory for Photogrammetry & Laser Scanning of the
T. P. Kersten   +4 more
doaj   +1 more source

Effects of laser scanning speeds on different states of the molten pool during selective laser melting: Simulation and experiment

open access: yes, 2020
Using numerical simulations and experimental tests, the temperature and velocity fields of the molten pool during selective laser melting (SLM) were investigated, where the laser scanning speed ranging from 2.5 m/s to 0.3 m/s was employed.
Wei-Hao Yuan   +3 more
semanticscholar   +1 more source

Investigations on the Geometric Accuracy of the NavVis VLX 2 and VLX 3 Systems for the Use in Indoor Applications [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Mobile mapping technology from NavVis GmbH enables buildings and interiors to be captured quickly and accurately, creating digital twins. At HafenCity University (HCU) Hamburg, the NavVis VLX 2 and VLX 3 were used to test an interior recording system and
T. P. Kersten, M. Marsmann
doaj   +1 more source

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