Results 21 to 30 of about 3,639,238 (295)

THE GREAT WALL 3D DOCUMENTATION AND APPLICATION BASED ON MULTI-SOURCE DATA FUSION – A CASE STUDY OF NO.15 ENEMY TOWER OF THE NEW GUANGWU GREAT WALL [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Laser scanning or photogrammetry are useful individual techniques for digital documentation of cultural heritage sites. However, these techniques are of limited usage if cultural heritage such as the Great Wall is in harsh geographical conditions.
W. Hua, Y. Qiao, M. Hou, M. Hou, M. Hou
doaj   +1 more source

Statistical Estimation of Blast Fragmentation by Applying 3D Laser Scanning to Muck Pile

open access: yesShock and Vibration, 2022
Run-of-mine fragmentation is an important aspect of mine productivity optimization, as it affects all mine-to-mill processes. The current blasting fragmentation calculation methods do not consider the 3D geometric information.
Qiang Liu   +3 more
doaj   +1 more source

QUALITY ASSESSMENT AND COMPARISON OF SMARTPHONE AND LEICA C10 LASER SCANNER BASED POINT CLOUDS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
3D urban models are valuable for urban map generation, environment monitoring, safety planning and educational purposes. For 3D measurement of urban structures, generally airborne laser scanning sensors or multi-view satellite images are used as a data ...
B. Sirmacek, R. Lindenbergh, J. Wang
doaj   +1 more source

Reality Capture of Buildings Using 3D Laser Scanners

open access: yesCivilEng, 2021
The urgent need to improve performance in the construction industry has led to the adoption of many innovative technologies. 3D laser scanners are amongst the leading technologies being used to capture and process assets or construction project data for ...
Avar Almukhtar   +3 more
doaj   +1 more source

3D SURVEY IN COMPLEX ARCHAEOLOGICAL ENVIRONMENTS: AN APPROACH BY TERRESTRIAL LASER SCANNING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The survey of archaeological sites by appropriate geomatics technologies is an important research topic. In particular, the 3D survey by terrestrial laser scanning has become a common practice for 3D archaeological data collection.
D. Ebolese   +3 more
doaj   +1 more source

Methodology in 3D laser scanning of a farmhouse

open access: yesProceedings 3rd International Conference. Business Meets Technology, 2021
The urgent need to improve the quality in the refurbishment of traditional buildings has led to the adoption of many innovative technologies. 3D laser scanning is a non-destructive technique used in the study of architectural heritage. It consists of producing millions of accurate 3D points with a very high point density  in a short time.
Jésica Moreno-Puchalt   +3 more
openaire   +2 more sources

Estimation of 3D vegetation structure from waveform and discrete return airborne laser scanning data [PDF]

open access: yes, 2012
This study presents and compares new methods to describe the 3D canopy structure with Airborne Laser Scanning (ALS) waveform data as well as ALS point data.
Olofsson, Kenneth,   +13 more
core   +1 more source

Dual Speed Laser Re-melting for High Densification in H13 Tool Steel Metal 3D Printing [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The densification behavior of H13 tool steel powder by dual speed laser scanning strategy have been characterized for selective laser melting process, one of powder bed fusion based metal 3d printing. Under limited given laser power, the laser re-melting
Im Doo Jung   +6 more
doaj   +1 more source

An Autonomous Ultra-Wide Band-Based Attitude and Position Determination Technique for Indoor Mobile Laser Scanning

open access: yesISPRS International Journal of Geo-Information, 2018
Mobile laser scanning (MLS) has been widely used in three-dimensional (3D) city modelling data collection, such as Google cars for Google Map/Earth. Building Information Modelling (BIM) has recently emerged and become prominent.
Lawrence Lau   +6 more
doaj   +1 more source

3D road surface reconstruction based on point clouds data assimilation algorithm

open access: yesMATEC Web of Conferences, 2017
Urban areas 3D model reconstruction is one of the major fields of application of 3D scanning technologies. In the future, vehicle-based laser scanning, here called mobile laser scanning system, should see considerable use for 3D road environment ...
Chen De-liang, Lu Yan-yan
doaj   +1 more source

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