scholarly journals Application of Underground Cavity 3D Digitization and Figuration Technology to Underground Safety Industry

2021 ◽  
Vol 58 (4) ◽  
pp. 364-370
Author(s):  
Soo-lo Kim ◽  
Gwan-in Bak ◽  
Seung-han Baek
Keyword(s):  
Underground Cavity ◽  
3D Digitization

Three-dimensional image analysis and visualization in confocal light microscopy

1993 ◽  
Vol 51 ◽  
pp. 158-159
Author(s):  
J. K. Samarabandu ◽  
R. Acharya ◽  
D. R. Pareddy ◽  
P. C. Cheng
Keyword(s):  
Depth Perception ◽  
Computer Graphic ◽  
Three Dimensional ◽  
Cellular Organization ◽  
Data Set ◽  
Computational Burden ◽  
Interactive Operation ◽  
Cell Organization ◽  
Confocal Images ◽  
3D Digitization

In the study of cell organization in a maize meristem, direct viewing of confocal optical sections in 3D (by means of 3D projection of the volumetric data set, Figure 1) becomes very difficult and confusing because of the large number of nucleus involved. Numerical description of the cellular organization (e.g. position, size and orientation of each structure) and computer graphic presentation are some of the solutions to effectively study the structure of such a complex system. An attempt at data-reduction by means of manually contouring cell nucleus in 3D was reported (Summers et al., 1990). Apart from being labour intensive, this 3D digitization technique suffers from the inaccuracies of manual 3D tracing related to the depth perception of the operator. However, it does demonstrate that reducing stack of confocal images to a 3D graphic representation helps to visualize and analyze complex tissues (Figure 2). This procedure also significantly reduce computational burden in an interactive operation.

3D Digitization of a Large Model of Imperial Rome

2005 ◽  
Author(s):  
G. Guidi ◽  
L. Micoli ◽  
M. Russo ◽  
B. Frischer ◽  
M. De Simone ◽  
...  
Keyword(s):  
Imperial Rome ◽  
3D Digitization ◽  
Large Model

Influence of unsupported length on underground cavity stability in sandstone stratum with weak interlayer

2021 ◽  
Author(s):  
Chenyang Zhao ◽  
Qiang Zhang ◽  
Mingfeng Lei ◽  
Yintao Song ◽  
Guodong Liang ◽  
...  
Keyword(s):  
Underground Cavity ◽  
Weak Interlayer ◽  
Cavity Stability

Finite-frequency effects for imaging underground cavities

2021 ◽  
Author(s):  
Felix M. Schneider ◽  
Petr Kolínský ◽  
Götz Bokelmann
Keyword(s):  
Analytical Approach ◽  
Nuclear Test ◽  
Underground Cavity ◽  
Finite Frequency ◽  
Cavity Detection ◽  
Frequency Effects ◽  
The Past ◽  
Nuclear Tests ◽  
Seismic Anomalies ◽  
Test Ban

<p>We study finite-frequency effects that arise in cavity detection. The task comes along with the Onsite-Inspection part for the Comprehensive Nuclear Test Ban Treaty (CTBT), where the remnants of a potential nuclear test need to be identified. In such nuclear tests, there is preexisting knowledge about the depths at which nuclear tests may take place, and also about sizes that such cavities can attain. The task of cavity detection has consistently been a difficult one in the past, which is surprising, since a cavity represents one of the strongest seismic anomalies one can ever have in the subsurface. A conclusion of this study is that considering finite-frequency effects are rather promising for cavity detection, and that it is worthwhile to take them into account. We utilize an analytical approach for the forward problem of the a seismic wave interacting with a underground cavity in order to develop an inversion routine that finds and detects an underground cavity utilizing the transmitted wave-field.</p><p> </p>

scholarly journals 3D Digitization and Additive Manufacturing Technologies in Medicine

2018 ◽  
Vol 26 (42) ◽  
pp. 165-170
Author(s):  
Ivan Molnár ◽  
Ladislav Morovič
Keyword(s):  
Additive Manufacturing ◽  
Manufacturing Processes ◽  
Design And Manufacturing ◽  
Medical Aids ◽  
Manufacturing Methods ◽  
Manufacturing Technologies ◽  
Design And Manufacture ◽  
3D Digitization ◽  
The Given

Abstract The paper discusses the use of 3D digitization and additive manufacturing technologies in the field of medicine. In addition, applications of the use of 3D digitization and additive manufacturing methods are described, focusing on the design and manufacture of individual medical aids. Subsequently, the process of designing and manufacturing of orthopedic aids using these technologies is described and the advantages of introducing the given technologies into the design and manufacturing processes in the medicine sector are presented.

3D Digitization of Architectural Heritage

2019 ◽  
pp. 51-85
Author(s):  
Caterina Morganti ◽  
Cristiana Bartolomei
Keyword(s):  
Cultural Heritage ◽  
Large Scale ◽  
Current Issue ◽  
Technological Application ◽  
Historical Buildings ◽  
Architectural Heritage ◽  
3D Digitization ◽  
Cloud Of Points

This project's principal intention is developing a structure from a motion thematic applied to an architecture field in both medium and large scale, in order to generate a cloud of points. These are obtained thanks to photographic footage, which can later be used during the H-BIM process. The matter of 3D digitalization is a very current issue for many countries including Cuba. The growth of such a technological application for tridimensional restitution of historical buildings is treated by giving special attention to those belonging to Havana's architectural and cultural heritage.

Documentation, Processing, and Representation of Architectural Heritage Through 3D Semantic Modelling

2020 ◽  
pp. 202-238 ◽  
Author(s):  
Federica Maietti ◽  
Roberto Di Giulio ◽  
Marco Medici ◽  
Federico Ferrari ◽  
Anna Elisabetta Ziri ◽  
...  
Keyword(s):  
Industry 4.0 ◽  
New Technologies ◽  
Post Processing ◽  
Architectural Heritage ◽  
Web Based ◽  
Horizon 2020 ◽  
Semantic Modelling ◽  
European Heritage ◽  
3D Digitization ◽  
The Impact

Documentation, data processing, and representation of Architectural Heritage through digital models are one of the main challenges in the field of conservation, preservation, management, and inclusive use and understanding of European heritage assets. In this framework, the impact of Industry 4.0 is more and more crucial, since new technologies, devices, and digital environment are strongly influencing the ways in which heritage contents are explored, used, managed, and shared, also in citizens' everyday life. In this direction, the INCEPTION project – founded by the European Commission within the Horizon 2020 programme – develops key-targeted innovations in efficient 3D digitization methods, post-processing modelling tools, semantic web-based solutions, and applications to ensure a wide and aware access to digital Cultural Heritage. This chapter presents main actions achieved by INCEPTION.

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