Results 21 to 30 of about 58,855 (257)

Hybrid Dispersion Laser Scanner [PDF]

Scientific Reports, 2012
Laser scanning technology is one of the most integral parts of today's scientific research, manufacturing, defense, and biomedicine. In many applications, high-speed scanning capability is essential for scanning a large area in a short time and multi-dimensional sensing of moving objects and dynamical processes with fine temporal resolution ...
Goda, K, Mahjoubfar, A, Wang, C, Fard, A, Adam, J, Gossett, DR, Ayazi, A, Sollier, E, Malik, O, Chen, E, Liu, Y, Brown, R, Sarkhosh, N, Di Carlo, D, Jalali, B   +14 more
openaire   +4 more sources

AN AUTOMATIC PROCEDURE FOR COMBINING DIGITAL IMAGES AND LASER SCANNER DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Besides improving both the geometry and the visual quality of the model, the integration of close-range photogrammetry and terrestrial laser scanning techniques directs at filling gaps in laser scanner point clouds to avoid modeling errors ...
W. Moussa, M. Abdel-Wahab, D. Fritsch
doaj   +1 more source

Standard method for microCT-based additive manufacturing quality control 3: Surface roughness

MethodsX, 2018
The use of microCT of 10 mm coupon samples produced by AM has the potential to provide useful information of mean density and detailed porosity information of the interior of the samples.
Anton du Plessis, Philip Sperling, Andre Beerlink, Oelof Kruger, Lerato Tshabalala, Shaik Hoosain, Stephan G. le Roux   +6 more
doaj   +1 more source

Evaluation of Three-Dimensional Photogrammetric Model from Low-Cost Digital Camera Applied in the Cultural Heritage Registry [PDF]

Anuário do Instituto de Geociências, 2020
As tecnologias como o Laser Scanner se destacam no âmbito de registros arquitetônicos. Laser Scanner representa um equipamento extremamente preciso, que possibilita a criação de modelos tridimensionais por meio da coleta de milhares de pontos. Por outro
George Deroco Martins, Henrique Cândido de Oliveira, Rodrigo de Araújo Bezerra Gallis, Daiane Vieira Vaz   +3 more
doaj   +1 more source

Design of a Liquid‐Driven Laser Scanner with Low Voltage Based on Liquid‐Infused Membrane

Advanced Intelligent Systems, 2023
Laser energy is commonly used in tissue ablation, wound suturing, and other precise manipulations during surgery. However, currently available laser scanners require further improvements in terms of miniaturization, driving voltage, and stability to ...
Chunqi Zhang, Hangjie Mo, Liushuai Zheng, Han Zhao, Gang Feng, Dong Sun   +5 more
doaj   +1 more source

JOINT CALIBRATION OF 3D LASER SCANNER AND DIGITAL CAMERA BASED ON DLT ALGORITHM [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Design a calibration target that can be scanned by 3D laser scanner while shot by digital camera, achieving point cloud and photos of a same target. A method to joint calibrate 3D laser scanner and digital camera based on Direct Linear Transformation ...
X. Gao, M. Li, L. Xing, Y. Liu
doaj   +1 more source

Comparison of 3D Point Clouds Obtained by Terrestrial Laser Scanning and Personal Laser Scanning on Forest Inventory Sample Plots

Data, 2020
In forest inventory, trees are usually measured using handheld instruments; among the most relevant are calipers, inclinometers, ultrasonic devices, and laser range finders.
Christoph Gollob, Tim Ritter, Arne Nothdurft   +2 more
doaj   +1 more source

Integrated Georeferencing of LiDAR and Camera Data Acquired from a Moving Platform [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
This paper presents an approach for modeling the trajectory of a moving platform equipped with a laser scanner and a camera. In most cases, GNSS and INS is used to determine the orientation of the platform, but sometimes it is impossible to use GNSS ...
F. Liebold, H.-G. Maas
doaj   +1 more source

Comparing Three Different Ground Based Laser Scanning Methods for Tree Stem Detection

Remote Sensing, 2018
A forest inventory is often carried out using airborne laser data combined with ground measured reference data. Traditionally, the ground reference data have been collected manually with a caliper combined with land surveying equipment.
Ivar Oveland, Marius Hauglin, Francesca Giannetti, Narve Schipper Kjørsvik, Terje Gobakken   +4 more
doaj   +1 more source

Measurement of 3D Space Using a 2D Profilograph [PDF]

Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2016
This article proposes a method how to create a measurement system which can be used as a terrestrial laser scanner. The system utilizes laser scanner LD-OEM 1000.
Marián HRUBOŠ, Dušan NEMEC, Vojtech ŠIMÁK, Jozef HRBČEK, Rastislav PIRNÍK   +4 more
doaj   +1 more source