Results 21 to 30 of about 7,581 (266)

TESTING OF V3.SUN MODULE PROTOTYPE FOR SOLAR RADIATION MODELLING ON 3D OBJECTS WITH COMPLEX GEOMETRIC STRUCTURE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
High-resolution solar radiation modelling requires the three-dimensional geometric structure of the landscape to be respected. Currently, remote sensing methods such as laser scanning and close-range photogrammetry are most commonly used for detailed ...
J. Kaňuk, S. Zubal, J. Šupinský, J. Šašak, M. Bombara, V. Sedlák, M. Gallay, J. Hofierka, K. Onačillová   +8 more
doaj   +1 more source

Development of a Methodology for Obtaining Solid Models of Products That Are Objects of Reverse Engineering Using the Example of the Capstone Micro-GTU C 65

Modelling
Currently, about a thousand micro gas turbine units of small and medium capacity are in operation in the Russian Federation, which are used as an autonomous power source at critical infrastructure facilities.
Sergey Osipov, Ivan Komarov, Olga Zlyvko, Andrey Vegera, George Gertsovsky   +4 more
doaj   +1 more source

EXTRACTING SEMANTICALLY ANNOTATED 3D BUILDING MODELS WITH TEXTURES FROM OBLIQUE AERIAL IMAGERY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
This paper proposes a method for the reconstruction of city buildings with automatically derived textures that can be directly used for façade element classification.
D. Frommholz, M. Linkiewicz, H. Meissner, D. Dahlke, A. Poznanska   +4 more
doaj   +1 more source

A GEOMETRIC PROCESSING WORKFLOW FOR TRANSFORMING REALITY-BASED 3D MODELS IN VOLUMETRIC MESHES SUITABLE FOR FEA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Conservation of Cultural Heritage is a key issue and structural changes and damages can influence the mechanical behaviour of artefacts and buildings. The use of Finite Elements Methods (FEM) for mechanical analysis is largely used in modelling stress ...
S. Gonizzi Barsanti, G. Guidi
doaj   +1 more source

Three-Dimensional Reconstruction of the Bony Nasolacrimal Canal by Automated Segmentation of Computed Tomography Images.

PLoS ONE, 2016
ObjectiveTo apply a fully automated method to quantify the 3D structure of the bony nasolacrimal canal (NLC) from CT scans whereby the size and main morphometric characteristics of the canal can be determined.DesignCross-sectional study.Subjects36 eyes ...
Lucia Jañez-Garcia, Federico Saenz-Frances, Jose M Ramirez-Sebastian, Nicolas Toledano-Fernandez, Maria Urbasos-Pascual, Luis Jañez-Escalada   +5 more
doaj   +1 more source

The Polygonal 3D Layout Reconstruction of an Indoor Environment via Voxel-Based Room Segmentation and Space Partition

ISPRS International Journal of Geo-Information, 2022
An increasing number of applications require the accurate 3D layout reconstruction of indoor environments. Various devices including laser scanners and color and depth (RGB-D) cameras can be used for this purpose and provide abundant and highly precise ...
Fan Yang, You Li, Mingliang Che, Shihua Wang, Yingli Wang, Jiyi Zhang, Xinliang Cao, Chi Zhang   +7 more
doaj   +1 more source

Rectangular Blocks vs Polygonal Walls in Archaeoseismology

Annals of Geophysics, 2017
Collapsed or deformed walls in ancient structures constitute important evidence in archaeoseismology, where damage is interpreted in terms of earthquake ground motion.
Klaus-G. Hinzen, Arnaud Montabert
doaj   +1 more source

A Low-Complexity Region-Based Authentication Algorithm for 3D Polygonal Models [PDF]

Security and Communication Networks, 2017
This study proposes a low-complexity region-based authentication algorithm for three-dimensional (3D) polygonal models, based on local geometrical property evaluation. A vertex traversal scheme with a secret key is adopted to classify each vertex into one of two categories: embeddable vertices and reference vertices. An embeddable vertex is one with an
Yuan-Yu Tsai, Tsung-Chieh Cheng, Yao-Hsien Huang   +2 more
openaire   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Accuracy of typical photogrammetric networks in cultural heritage 3D modeling projects [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
The easy generation of 3D geometries (point clouds or polygonal models) with fully automated image-based methods poses nontrivial problems on how to check a posteriori the quality of the achieved results.
E. Nocerino, E. Nocerino, F. Menna, F. Remondino   +3 more
doaj   +1 more source