Results 41 to 50 of about 2,275,673 (297)

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

open access: yes, 2012
In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro   +3 more
core   +1 more source

Estimation of canopy structure and individual trees from laser scanning data [PDF]

open access: yes, 2012
During the last fifteen years, laser scanning has emerged as a data source for forest inventory. Airborne laser scanning (ALS) provides 3D data, which may be used in an automated analysis chain to estimate vegetation properties for large areas ...
Lindberg, Eva
core   +1 more source

Planning for Scanning Using Building Information Models:A Novel Approach with Occlusion Handling [PDF]

open access: yes, 2015
Terrestrial laser scanning is finding an increasing range of applications in the Architectural Engineering Construction and Facilities Management (AEC/FM) industry.
Biswas, Humayun Kabir   +5 more
core   +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

A Web-Based Geoinformation System for Heritage Management and Geovisualisation in Cantón Nabón (Ecuador)

open access: yesISPRS International Journal of Geo-Information, 2021
Since ancient times, human beings have been interested in knowing their environment in order to make the right decisions in territorial management. The spatial component is a feature of great importance in the assets that surround us.
Angel Collado   +3 more
doaj   +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

MULTISPECTRAL AIRBORNE LASER SCANNING FOR AUTOMATED MAP UPDATING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
During the last 20 years, airborne laser scanning (ALS), often combined with multispectral information from aerial images, has shown its high feasibility for automated mapping processes. Recently, the first multispectral airborne laser scanners have been
L. Matikainen, J. Hyyppä, P. Litkey
doaj   +1 more source

MERGING PHOTOGRAMMETRY AND AUGMENTED REALITY: THE CANADIAN LIBRARY OF PARLIAMENT [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
In recent years, Augmented Reality (AR) technology has experienced considerable progress and the combination of AR and 3D modeling opens up new opportunities regarding 3D data visualization and interaction.
B. Carrión-Ruiz   +4 more
doaj   +1 more source

An Integrated GNSS/INS/LiDAR-SLAM Positioning Method for Highly Accurate Forest Stem Mapping

open access: yesRemote Sensing, 2016
Forest mapping, one of the main components of performing a forest inventory, is an important driving force in the development of laser scanning. Mobile laser scanning (MLS), in which laser scanners are installed on moving platforms, has been studied as a
Chuang Qian   +9 more
doaj   +1 more source

The Accuracy Comparison of Three Simultaneous Localization and Mapping (SLAM)-Based Indoor Mapping Technologies

open access: yesSensors, 2018
The growing interest and the market for indoor Location Based Service (LBS) have been drivers for a huge demand for building data and reconstructing and updating of indoor maps in recent years.
Yuwei Chen   +12 more
doaj   +1 more source

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