Results 41 to 50 of about 126,510 (292)

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]

open access: yes, 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   +7 more
core   +4 more sources

STREET-SCENE TREE SEGMENTATION FROM MOBILE LASER SCANNING DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Our work addresses the problem of extracting trees from mobile laser scanning data. The work is a two step-wise strategy, including terrain point removal and tree segmentation.
H. Guan   +7 more
doaj   +1 more source

Railway Object Recognition Using Mobile Laser Scanning Data [PDF]

open access: yesJournal of the Korea Industrial Information Systems Research, 2014
The objective of the research is to automatically recognize railway objects from MLS data in which 9 key objects including terrain, track, bed, vegetation, platform, barrier, posts, attachments, powerlines are targeted. The proposed method can be divided into two main sub-steps. First, multi-scale contextual features are extracted to take the advantage
Chao Luo   +4 more
openaire   +1 more source

High-resolution 3D weld toe stress analysis and ACPD method for weld toe fatigue crack initiation [PDF]

open access: yes, 2019
Weld toe fatigue crack initiation is highly dependent on the local weld toe stress-concentrating geometry including any inherent flaws. These flaws are responsible for premature fatigue crack initiation (FCI) and must be minimised to maximise the fatigue
Chaudhuri, Somsubhro   +3 more
core   +2 more sources

Mobile Laser Scanning Applied to the Earth Sciences [PDF]

open access: yesEos, Transactions American Geophysical Union, 2013
Lidar (light detection and ranging), a method by which the precise time of flight of emitted pulses of laser energy is measured and converted to distance for reflective targets, has helped scientists make topographic maps of Earth's surface at scales as fine as centimeters.
Benjamin A. Brooks   +4 more
openaire   +1 more source

Stop-and-Go Mode: Sensor Manipulation as Essential as Sensor Development in Terrestrial Laser Scanning

open access: yesSensors, 2013
This study was dedicated to illustrating the significance of sensor manipulation in the case of terrestrial laser scanning, which is a field now in quick development.
Antero Kukko, Juha Hyyppä, Yi Lin
doaj   +1 more source

IMPACT OF DIFFERENT TRAJECTORIES ON EXTRINSIC SELF-CALIBRATION FOR VEHICLE-BASED MOBILE LASER SCANNING SYSTEMS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The extrinsic calibration of a Mobile Laser Scanning system aims to determine the relative orientation between a laser scanner and a sensor that estimates the exterior orientation of the sensor system.
M. Hillemann   +3 more
doaj   +1 more source

Analysis of the Qualitative Parameters of Mobile Laser Scanning for the Creation of Cartographic Works and 3D Models for Digital Twins of Urban Areas

open access: yesApplied Sciences
This article focuses on the assessment of point clouds obtained by various laser scanning methods as a tool for 3D mapping and Digital Twin concepts. The presented research employed terrestrial and mobile laser scanning methods to obtain high-precision ...
Ľudovít Kovanič   +4 more
doaj   +1 more source

Optimising mobile laser scanning for underground mines

open access: yes, 2022
Despite several technological advancements, underground mines are still largely relied on visual inspections or discretely placed direct-contact measurement sensors for routine monitoring. Such approaches are manual and often yield inconclusive, unreliable and unscalable results besides exposing mine personnel to field hazards.
openaire   +2 more sources

Innovative strategies for 3D visualisation using photogrammetry and 3D scanning for mobile phones [PDF]

open access: yes, 2019
3D model generation through Photogrammetry is a modern overlay of digital information representing real world objects in a virtual world. The immediate scope of this study aims at generating 3D models using imagery and overcoming the challenge of ...
Dempster, Euan   +2 more
core   +2 more sources

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