scholarly journals The use of 3D scanners in military technology

Mechanik ◽  
2017 ◽  
Vol 90 (1) ◽  
pp. 52-53
Author(s):  
Mirosław Karczewski

In the article is presented a method to identify geometry of military objects based on 3D scanning technology and photogrammetric processes. During the scanning process different types of markers and calibrated patterns of length, placed on the object are used. Results of measurements using three different methods: base points measurementare method, 3D scanning method and 3D scanning in conjunction with the measurement geometry characteristic points method.

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Jerzy Montusiewicz ◽  
Marek Miłosz ◽  
Jacek Kęsik ◽  
Kamil Żyła

AbstractHistorical costumes are part of cultural heritage. Unlike architectural monuments, they are very fragile, which exacerbates the problems of their protection and popularisation. A big help in this can be the digitisation of their appearance, preferably using modern techniques of three-dimensional representation (3D). The article presents the results of the search for examples and methodologies of implementing 3D scanning of exhibited historical clothes as well as the attendant problems. From a review of scientific literature it turns out that so far practically no one in the world has made any methodical attempts at scanning historical clothes using structured-light 3D scanners (SLS) and developing an appropriate methodology. The vast majority of methods for creating 3D models of clothes used photogrammetry and 3D modelling software. Therefore, an innovative approach was proposed to the problem of creating 3D models of exhibited historical clothes through their digitalisation by means of a 3D scanner using structural light technology. A proposal for the methodology of this process and concrete examples of its implementation and results are presented. The problems related to the scanning of 3D historical clothes are also described, as well as a proposal how to solve them or minimise their impact. The implementation of the methodology is presented on the example of scanning elements of the Emir of Bukhara's costume (Uzbekistan) from the end of the nineteenth century, consisting of the gown, turban and shoes. Moreover, the way of using 3D models and information technologies to popularise cultural heritage in the space of digital resources is also discussed.


2016 ◽  
Vol 62 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Adam Chromy

Abstract This paper deals with application of 3D scanning technology in medicine. Important properties of 3D scanners are discussed with emphasize on medical applications. Construction of medical 3D scanner according to these specifications is described and practical application of its use in medical volumetry is presented. Besides volumetry, such 3D scanner is usable for many other purposes, like monitoring of recovery process, ergonomic splint manufacturing or inflammation detection. 3D scanning introduces novel volumetric method, which is compared with standard methods. The new method is more accurate compared to present ones. Principles of this method are discussed in paper and its accuracy is evaluated and experimentally verified.


2018 ◽  
Vol 55 (2) ◽  
pp. 215-218
Author(s):  
Anca Bucuresteanu ◽  
Dan Prodan ◽  
Adrian Motomancea

In this paper, the authors show a part of research works performed on the use of 3D scanners and 3D printers to execute plastic parts with complex surfaces. 3D scanning allows copying of certain surfaces in our environment, based on existing models. Scanned models may represent various objects, made of a wide range of materials: metals, ceramics, fabrics, plastics, leather, organic materials etc. [1]. This paper shows the results achieved using a scanner and a common and affordable - low-price - printer. 3D scanners and printers allow execution of clones of certain parts with irregular surfaces.


Measurement ◽  
2015 ◽  
Vol 67 ◽  
pp. 61-70 ◽  
Author(s):  
Agnes Psikuta ◽  
Joanna Frackiewicz-Kaczmarek ◽  
Emel Mert ◽  
Marie-Ange Bueno ◽  
Renè M. Rossi
Keyword(s):  
Air Gap ◽  

2021 ◽  
Vol 4 (3–4) ◽  
Author(s):  
Gwen Robbins Schug ◽  
Kristina Killgrove ◽  
Alison Atkin ◽  
Krista Baron

Humans have interacted with the remains of our dead for aesthetic and ritual purposes for millennia, and we have utilized them for medical, educational, and scholarly pursuits for several centuries. Recently, it has become possible to use digital technologies such as 3D scanners and printers for reconstructing, representing, and disseminating bodies. At the same time, there is growing interest among academics and curators in taking a more reflexive approach to the ethical and social dimensions of conservation. This paper considers theoretical and practical aspects of ethics as they apply to the 3D scanning and printing of human skeletal remains for curation or dissemination, provides case studies from our work in the United States, and suggests guidelines for best practices.   Los seres humanos hemos interactuado con los restos humanos de nuestros muertos por razones estéticas y rituales por milenios. Asimismo, estos restos han sido utilizados para conducir investigaciones médicas, educativas, y académicas por varios siglos. Recientemente, con la ayuda de la tecnología digital de los escáneres e impresoras 3D ha sido posible reconstruir, representar, y difundir estos cuerpos. Al mismo tiempo, los académicos y los conservadores proponen ser más reflexivos al lidiar con las dimension eséticas y sociales del campo de la conservación. Este artículo considera los aspectos teóricos y prácticos de la ética de los escaneos e impresiones 3D de restos óseos humanos para su conservación y diseminación, aporta casos prácticos de nuestros trabajos investigativos en los Estados Unidos como ejemplos, y sugiere normas para una práctica adecuada. 


2021 ◽  
pp. 141-163
Author(s):  
N A Abu Osman ◽  
W Mehmood ◽  
N A Abd Razak

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1881 ◽  
Author(s):  
Marek Hawryluk ◽  
Zbigniew Gronostajski ◽  
Jacek Ziemba ◽  
Marta Janik ◽  
Piotr Górski ◽  
...  

This article discusses the problems related to the use of non-contact 3D scanning techniques and their support by means of replication methods for the analysis of the geometrical changes in deep tool impressions used for the forward extrusion of valve-type elements assigned for motor truck engines. The 3D scanning method, despite its unquestionable advantages, also has certain limitations, such as scanning the inner surfaces of deep cavities. This is caused by the fact that the larger the angle between the reflected laser light and the normal direction to the measured surface, the larger the area covered for the analysis, yet at the same time, the higher the measurement error. The authors performed an analysis of the geometrical loss of the tools as well as the corresponding replication masses, together with a discussion of the results related to minimization of the measuring errors. For the analyzed tool, the maximum angle during direct scanning was 40 degrees, which unfortunately does not enable an analysis of the entire pattern, while for larger angles, it is necessary to make the measurement by indirect scanning, i.e., by replicating the cavity imprint of the tool. Therefore, for a given geometry, the reflection angle should be determined individually.


2019 ◽  
Vol 2 (1) ◽  
pp. 1-27
Author(s):  
Nicholas Paganelli

The common understanding of the fashion industry is that it is rapidly changing and constantly on the cutting edge of what is new. Yet in reality the fashion industry does not adopt new practices or change its ways of doing business quite so easily. This article examines the successes and failures of 3D scanning as a new tool in the fashion industry. Through the analysis of three case studies it becomes clear that new technology is not an automatic guarantor of innovation or success. Analyzing the motivations behind the introduction of 3D scanning for made-to-measure clothing products is important to understanding where technology and the fashion practitioner do not necessarily communicate properly. Whereas 3D scanning promises to make made-to-measure clothing an easy and accessible service, made-to-measure and other custom clothing businesses are based upon traditional notions of luxury and craftsmanship. It is apparent through first-person interviews and observations that the current dichotomy between technology and craftsmanship has not been resolved. Creators of fashion-based technologies need to be working in tandem with traditional fashion practitioners, whose expertise is required if new technology is to reinvent the centuries-old processes of clothing production for the better. 3D scanners that have been introduced to date have yet to meet their full potential because they lack the nuanced understanding of the human body that comes from traditional clothes-making training and expertise. Researching the present status of this technology’s integration within fashion is important in understanding how digital technology is best included in the design, production, and sale of clothing products more broadly.


2020 ◽  
Vol 7 (1) ◽  
pp. 37-53 ◽  
Author(s):  
Mohd Javaid ◽  
Abid Haleem ◽  
Shahbaz Khan ◽  
Sunil Luthra

3D scanners are supporting technology which offers a higher level of flexibility to create designs for ergonomic tooling, biocompatible surgical guides, and realistic prototypes and parts. Flexibility helps to reduce lead time, weight, cost, and product development time. Scanning technologies are in tandem with support software that helps a designer to (re)design products at a cheaper and faster rate. There is a need to understand different types of flexibilities and associated application of 3D scanner. In this article, we have conducted an extensive review of the available literature for identifying various flexibilities of 3D scanners and its applications. This research categorises 3D scanner flexibility and applications into five major types. From design to final quality inspection, these flexibilities play a significant role in industries and sectors to achieve optimum performance. Ranking of these flexibilities and their impact on different applications are accomplished using the analytical hierarchical process (AHP) with the help of expert opinion. The ranking of five significant flexibilities by using 3D scanners, undertaken through the AHP technique shows that scanning provides object flexibility at a higher level. The impacts of different flexibilities on applications are also weighted, and it shows that all flexibilities are enough to achieve application individually. This digital technology is helpful to create the customised product which is also helpful to achieve goals of Industry 4.0. It facilitates the customisation and has a significant impact on the design applications. This study provides an understanding of the 3D scanner in the context of flexibilities by identifying the different flexibilities it offers when used for different applications. Findings may assist developing a decision support system for the selection of 3D scanners for the different applications.


Sign in / Sign up

Export Citation Format

Share Document