Results 11 to 20 of about 178,867 (298)

Development of an In-Situ Laser Machining System Using a Three-Dimensional Galvanometer Scanner

open access: yesEngineering, 2020
In this study, a three-dimensional (3D) in-situ laser machining system integrating laser measurement and machining was built using a 3D galvanometer scanner equipped with a side-axis industrial camera. A line structured light measurement model based on a
Xiao Li   +5 more
doaj   +3 more sources

3DVEM SOFTWARE MODULES FOR EFFICIENT MANAGEMENT OF POINT CLOUDS AND PHOTOREALISTIC 3D MODELS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Cultural heritage managers in general and information users in particular are not usually used to deal with high-technological hardware and software.
S. Fabado   +5 more
doaj   +1 more source

Assessment of Laser Scanner Use under Different Settings in Two Differently Managed Vineyards for Estimating Pruning Wood Parameters

open access: yesAgriEngineering, 2022
Precision viticulture employs various sensors for assessing nondestructively key parameters in vineyards. One of the most promising technologies for this purpose is the laser scanner sensor.
Evangelos Anastasiou   +5 more
doaj   +1 more source

DESIGN AND IMPLEMENT OF A CONICAL AIRBORNE LIDAR SCANNING SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
At present, the main LiDAR is single-point lidar. APD arrays and laser arrays are restricted to exit, so the number of area array LiDAR is scarce. Single-point lidar can't form a scanning pattern with only one laser point on the ground after launching ...
H. C. Hu   +11 more
doaj   +1 more source

Analysis and correction of the dependency between laser scanner intensity values and range [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Intensity values, which are registered by a terrestrial laser scanner system (TLS) for each point of a 3D point cloud in addition to its coordinates, are affected by the characteristic of the measured object and the parameters of the environment.
R. Blaskow, D. Schneider
doaj   +1 more source

AUTOMATIC TREE DATA REMOVAL METHOD FOR TOPOGRAPHY MEASUREMENT RESULT USING TERRESTRIAL LASER SCANNER [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Recently, laser scanning has been receiving greater attention as a useful tool for real-time 3D data acquisition, and various applications such as city modelling, DTM generation and 3D modelling of cultural heritage sites have been proposed.
H. Yokoyama, H. Chikatsu
doaj   +1 more source

Structural Stability Evaluation of Existing Buildings by Reverse Engineering with 3D Laser Scanner

open access: yesRemote Sensing, 2022
In the Fourth Industrial Revolution, research and development of application technologies that combine high-tech technologies have been actively conducted.
Arum Jang, Young K. Ju, Min Jae Park
doaj   +1 more source

Assessment of Registration Methods for Cranial 3D Modelling

open access: yesProceedings, 2019
Three-dimensional (3D) models are a useful tool for cranial deformation analysis in infants. The registration of the head 3D models to a known coordinate system is vital for the obtainment of parameters and indexes that quantify deformation.
Inés Barbero-García, José Luis Lerma
doaj   +1 more source

Accuracy Improvement Method of a 3D Laser Scanner Based on the D-H Model

open access: yesShock and Vibration, 2021
A three-dimensional (3D) laser scanner with characteristics such as acquiring huge point cloud data and noncontact measurement has revolutionized the surveying and mapping industry. Nonetheless, how to guarantee the 3D laser scanner precision remains the
Kai Chen   +3 more
doaj   +1 more source

Standard method for microCT-based additive manufacturing quality control 2: Density measurement

open access: yesMethodsX, 2018
MicroCT is best known for its ability to detect and quantify porosity or defects, and to visualize its 3D distribution. However, it is also possible to obtain accurate volumetric measurements from parts – this can be used in combination with the part ...
Anton du Plessis   +6 more
doaj   +1 more source

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