Application of 3D Scanning for Documentation and Creation of Physical Copies of Estampages

2019 ◽  
Vol 40 (1) ◽  
pp. 1-14
Author(s):  
Alexander Alexeevich Galushkin ◽  
Sofia Lvovna Gonobobleva ◽  
Vadim Alexandrovich Parfenov ◽  
Anton Alexandrovich Zhuravlev
Keyword(s):  
Experimental Research ◽  
3D Model ◽  
Structured Light ◽  
3D Models ◽  
3D Scanning ◽  
Additive Technologies ◽  
Laser Printer ◽  
3D Scanner ◽  
Combined Use ◽  
3D Printers

Abstract This article discusses the creation of a 3D archive and physical copies of paper reliefs (estamages). A matrix of the estampage is fabricated by the combined use of 3D scanning technology and additive technologies which can then be used for the documentation and conservation of the original estampage. In order to digitize the relief, an optical 3D scanner based on structured light was used and the processing of the 3D model is discussed in detail. Scanning data is uploaded into the microprocessor of a 3D laser printer using stereolithography technology which then creates a conservation matrix. The accuracy of relief reproduction is assessed by comparing its 3D model with 3D models of replicas obtained with the help of 3D printers. The experimental research showed that it is possible to create 3D archives and reproduction of reliefs. This approach is fundamentally new in the practice of museums and archives.

scholarly journals Structured-light 3D scanning of exhibited historical clothing—a first-ever methodical trial and its results

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Jerzy Montusiewicz ◽  
Marek Miłosz ◽  
Jacek Kęsik ◽  
Kamil Żyła
Keyword(s):  
Cultural Heritage ◽  
Information Technologies ◽  
Structured Light ◽  
Three Dimensional ◽  
3D Models ◽  
3D Scanning ◽  
Dimensional Representation ◽  
3D Scanner ◽  
Three Dimensional Representation ◽  
3D Scanners

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.

scholarly journals Study of the possibilities of 3D printing in ship modeling using the example of manufacturing a model of a small vessel for hydrodynamic testing in an experimental pool

2020 ◽  
Author(s):  
Alexander Vladimirovich Dektyarev ◽  
Pavel Gennadievich Zobov ◽  
Pavel Romanovich Grishin ◽  
Vladimir Nikolaevich Morozov
Keyword(s):  
3D Printing ◽  
3D Model ◽  
Three Dimensional ◽  
3D Scanning ◽  
Technological Parameters ◽  
Geometric Shapes ◽  
Adhesive Compound ◽  
3D Printers ◽  
Test Pool ◽  
Hydrodynamic Testing

Abstract The relevance of the work is determined by a fundamentally new direction of 3D printing in the manufacture of ship models for hydrodynamic testing. In this paper, we study the towing drag of a model of a small boat manufactured using additive three-dimensional printing technologies. Based on the dimensions of the 3D printers used and the technological parameters of working with them, as well as the design features of the test pool, small-sized vessels of a series of kayaks, kayaks and canoes, which are of sufficient length, but not too wide and high, were investigated as a prototype of the future model, which is ideal under the methods of additive manufacturing. A base of prototypes of vessels of this class has been compiled and a rationale has been given for the choice of the prototype vessel itself for research, including an analysis of the design of the vessels presented, the availability of design and technological documentation, as well as technological schemes for manufacturing the model. A 3D model of the vessel was developed, its optimization for 3D printing and analysis of geometric shapes for deviations from ITTC requirements. The study of deviations of the geometric shapes of the ship model from shrinkage deformations was carried out using 3D scanning with the development of a technological scheme for describing this process. When developing a 3D model, in the process of 3D printing, as well as processing the results of 3D scanning, modern software tools — FreeShip, Autodesk Inventor, Cloud Compare, and others — were used in the work. In the manufacture of the model, the new DPA adhesive compound formula was used, able to provide durable joints for PLA plastic products. It was found that the measurements prove the possibility of using 3D printing for the production of ship models for hydrodynamic testing, subject to all the nuances of the technology.

scholarly journals Examination of Scanner Precision by Analysing Orthodontic Parameters

2017 ◽  
Vol 21 (1) ◽  
pp. 32-43 ◽  
Author(s):  
Nemanja Majstorović ◽  
Luka Čerče ◽  
Davorin Kramar ◽  
Mirko Soković ◽  
Branislav Glišić ◽  
...  
Keyword(s):  
3D Model ◽  
Spatial Models ◽  
3D Models ◽  
General Purpose ◽  
3D Modelling ◽  
3D Scanner

Summary Background: 3D modelling in orthodontics is becoming an increasingly widespread technique in practice. One of the significant questions already being asked is related to determining the precision of the scanner used for generating surfaces on a 3D model of the jaw. Materials and methods: This research was conducted by generating a set of identical 3D models on Atos optical 3D scanner and Lazak Scan laboratory scanner, which precision was established by measuring a set of orthodontic parameters (54 overall) in all three orthodontic planes. In this manner we explored their precision in space, since they are used for generating spatial models – 3D jaws. Results: There were significant differences between parameters scanned with Atos and Lazak Scan. The smallest difference was 0.017 mm, and the biggest 1.109 mm. Conclusion: This research reveals that both scanners (Atos and Lazak Scan), which belong to general purpose scanners, based on precision parameters can be used in orthodontics. Early analyses indicate that the reference scanner in terms of precision is Atos.

scholarly journals Interacting with personal fabrication devices

2018 ◽  
Vol 60 (2) ◽  
pp. 113-117
Author(s):  
Stefanie Mueller
Keyword(s):  
Human Computer Interaction ◽  
3D Model ◽  
Interaction Model ◽  
3D Models ◽  
Interactive Systems ◽  
3D Printer ◽  
3D Printers ◽  
Model Database ◽  
Domain I ◽  
Computer Interaction

AbstractPersonal fabrication tools, such as 3D printers, are on the way of enabling a future in which non-technical users will be able to create custom objects. While the hardware is now affordable and the number of people who own a 3D printer is increasing, only few create new 3D models. Most users download models from a 3D model database and after downloading fabricate them on their 3D printers. At most, users adjust a few parameters of the model, such as changing its color or browsing between predetermined shape options.I argue that personal fabrication has the potential for more: Instead of only consuming existing content, I envision a future in which non-technical users will create objects only trained experts can create today. While there are many open challenges for human-computer interaction, such as abstracting away the necessarydomainandmachineknowledge, I focus on improving theinteraction modelunderlying current personal fabrication devices.In this article, I illustrate why today’s interaction model for personal fabrication tools is not suitable for non-technical users. For this, I draw an analogy to the development of the user interface in personal computing and show how solutions developed by human-computer interaction researchers over the last decades can be applied to this new domain. I analyze the challenges when creating interactive systems for personal fabrication and describe six research prototypes I built to overcome these challenges. I discuss the limitations of these systems and conclude with an overview of recent advancements in personal fabrication that will allow us to go beyond what is possible today.

scholarly journals Low-Cost Prototype to Automate the 3D Digitization of Pieces: An Application Example and Comparison

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2580
Author(s):  
Ramón González-Merino ◽  
Elena Sánchez-López ◽  
Pablo E. Romero ◽  
Jesús Rodero ◽  
Rafael E. Hidalgo-Fernández
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
3D Models ◽  
3D Scanner ◽  
3D Design ◽  
Robotic Arms ◽  
Effective System ◽  
3D Printers ◽  
Preliminary Study ◽  
3D Digitization

This work is aimed at describing the design of a mechanical and programmable 3D capturing system to be used by either 3D scanner or DSLR camera through photogrammetry. Both methods are widely used in diverse areas, from engineering, architecture or archaeology, up to the field of medicine; but they also entail certain disadvantages, such as the high costs of certain equipment, such as scanners with some precision, and the need to resort to specialized operatives, among others. The purpose of this design is to create a robust, precise and cost-effective system that improves the limitations of the present equipment on the market, such as robotic arms or rotary tables. For this reason, a preliminary study has been conducted to analyse the needs of improvement, later, we have focused on the 3D design and prototyping. For its construction, there have been used the FDM additive technology and structural components that are easy to find in the market. With regards to electronic components, basic electronics and Arduino-based 3D printers firmware have been selected. For system testing, the capture equipment consists of a Spider Artec 3D Scanner and a Nikon 5100 SLR Camera. Finally, 3D models have been developed by comparing the 3D meshes obtained by the two methods, obtaining satisfactory results.

scholarly journals A COMPARISON OF LASER AND STRUCTURED LIGHT SCANNING TECHNOLOGIES FOR ARCHAEOLOGICAL APPLICATIONS

2021 ◽  
Vol 13 (3) ◽  
pp. 111-116
Author(s):  
Nikolaos Papas ◽  
◽  
Konstantinos Tsongas ◽  
Dimitrios Karolidis ◽  
Dimitrios Tzetzis ◽  
...  
Keyword(s):  
Structured Light ◽  
Three Dimensional ◽  
3D Models ◽  
3D Scanning ◽  
Acquisition Time ◽  
Digital Reference ◽  
Scanning Time ◽  
Actual Equipment ◽  
Scan Data

Reverse engineering and in particular three-dimensional digitization have become an essential part of the documentation of archaeological findings. 3D scanning produces a high-precision digital reference document. The factors that influence the quality of the 3D scanned data are the scanned object’s surface colour, its glossiness and geometry, and the ambient light during the scanning process. However, the actual equipment and scanning technologies are of primary importance. The current paper presents a qualitative and quantitative comparison between two 3D scanning devices of different technologies; structured light 3D scanning and laser 3D scanning. The benchmark for this comparison is an ancient Roman vase from the city of Thessaloniki, Greece. The object was scanned with every possible setting on each scanner, but only one configuration of settings on each device was selected for the final comparison. The main criterion for the final selection of the two 3D models acquired with the use of the two technologies was the proximity in the number of points and polygons produced for digitally restoring the ancient vase in the best possible way. The results indicate important differences regarding the accuracy of the final digital model. The laser technology produced better accuracy but with a significant cost in scanning time and model data size. On the other hand, the structured light technology achieved the optimal combination of scanning quality and accuracy, along with reduced acquisition time of scan data.

scholarly journals THE CONCEPTUAL PRINCIPLES OF USING DIGITAL 3D MODEL AS A MEANS OF COGNITION AND REPRESENTATION OF SIGNS OF CRIMINAL OFFENSE

2021 ◽  
pp. 537-550
Author(s):  
А. Kovalenko
Keyword(s):  
3D Model ◽  
Three Dimensional ◽  
3D Models ◽  
3D Scanning ◽  
Criminal Proceedings ◽  
Three Dimensional Model ◽  
Significant Information ◽  
Criminal Offense ◽  
Spatial Features ◽  
Object Based

The article forms the conceptual principles of use of digital 3D model as means of cognition and display of signs of a criminal offense in criminal proceedings. A 3D model can be defined as a digital, three-dimensional image of an object, which reflects its external structure and color, accurately and proportionally reproduces the ratio of its spatial features. It can directly contain information about the shape, proportions, color and mutual placement in space of the elements of the original object. Provided the manufacturing technology is followed, the model is isomorphic to original object. Such a model serves as a means of cognition and reflection of forensically significant features of a criminal offense. The main methods for making 3D models are reconstruction (modeling) and scanning. 3D reconstruction (or 3D modeling) can be defined as the process of reproducing a 3D model of a forensic significant object based on information about it contained in the materials of criminal proceedings. The reconstructed models can be used during investigative (search) actions and for solving organizational problems. 3D scanning consists in the direct fixation of the external spatial features of the object using a special software and hardware complex, followed by the formation of a digital three-dimensional model of the object. Subject to compliance with the procedural requirements for the use of technical means of fixing forensically significant information, scanned 3D models will be sources of evidentiary information in criminal proceedings. 3D scanning is a promising method for recording the course and results of an inspection of the scene of an incident, inspection of a corpse or things; it can be used for fixing signs of a person's appearance, as well as for solving identification and diagnostics tasks in forensic activities. The invariability of the 3D model can be ensured by calculating the hash of the file that contains it.

Cataloging the 3D web: the availability of educational 3D models on the internet

2016 ◽  
Vol 34 (2) ◽  
pp. 239-258 ◽  
Author(s):  
Michael Groenendyk
Keyword(s):  
Computer Aided Design ◽  
3D Model ◽  
3D Models ◽  
3D Modelling ◽  
The Internet ◽  
Content Type ◽  
3D Printers ◽  
3D Printed ◽  
The Subject ◽  
Aided Design

Purpose – The number of 3D models available on the internet to both students and educators is rapidly expanding. Not only are the 3D model collections of popular websites like Thingiverse.com growing, organizations such as the Smithsonian Institution and NASA have also recently begun to build collections of 3D models and make these openly accessible online. Yet, even with increased interest in 3D printing and 3D scanning technologies, little is known about the overall structure of the 3D models available on the internet. The paper aims to discuss this issue. Design/methodology/approach – To initiate this project, a list was built of 33 of the most widely used 3D model websites on the internet. Freely downloadable models, as well as models available for purchase or as 3D printed objects were included in the list. Once the list of 33 websites was created, the data for each individual 3D model in the collections was manually assembled and recorded. The titles of the 3D models, keywords, subject headings, license information, and number of views and downloads were recorded, as this information was available. The data were gathered between January and May 2015, and compiled into a CSV database. To determine how online 3D model content relates to a variety of educational disciplines, relevant subject terms for a variety of educational disciples were extracted from the EBSCO database system. With this list of subject terms in hand, the keywords in the CSV database of model information were searched for each of the subject terms, with an automated process using a Perl script. Findings – There have been many teachers, professors, librarians and students who have purchased 3D printers with little or no 3D modelling skills. Without these skills the owners of these 3D printers are entirely reliant on the content created and freely shared by others to make use of their 3D printers. As the data collected for this research paper shows, the vast majority of open 3D model content available online pertains to the professions already well versed in 3D modelling and Computer Aided Design design, such as engineering and architecture. Originality/value – Despite that fact that librarians, teachers and other educators are increasingly using technologies that rely on open 3D model content as educational tools, no research has yet been done to assess the number of 3D models available online and what educational disciplines this content relates to. This paper attempts to fill this gap, providing an overview of the size of this content, the educational disciplines this content relates to and who has so far been responsible for developing this content. This information will be valuable to librarians and teachers currently working with technology such as 3D printers and virtual reality, as well as those considering investing in this technology.

Design and Evaluation of a Collaborative Learning System for 3D Model Sharing

2019 ◽  
pp. 262-285
Author(s):  
Tsai-Yen Li ◽  
I-Sheng Lin
Keyword(s):  
Collaborative Learning ◽  
Web Sites ◽  
3D Model ◽  
3D Models ◽  
Learning System ◽  
Preliminary Evaluation ◽  
Learning Space ◽  
Peer Reviews ◽  
3D Printers ◽  
Model Sharing

Due to the prevalence of 3D printers, many applications of 3D printing have been developed for education in the recent years. Although there are web sites hosting 3D models created by students and allowing them to be shared with others, these systems usually lack educational functions, especially for collaborative learning. On the other hand, most learning management systems do not provide functions needed for sharing and viewing 3D models. In this chapter, a system called 3D model co-learning space (3D MCLS), dedicated to collaborative learning, will be reported. The system allows a user to store, share, display, and discuss 3D models and allows a teacher to manage a group of students in a flexible way. Furthermore, the system can create the thumbnail of a 3D model automatically. It uses tags to organize models into groups according to their attributes or teams in a class. In addition, it provides blind assignments of peer reviews. The authors have implemented such a system and conducted a pilot study to obtain a preliminary evaluation on the usability of the system.

Bioengineering Applications of 3D Scanning and Reconstruction Using a Depth Sensor

2015 ◽  
Vol 809-810 ◽  
pp. 920-925 ◽  
Author(s):  
Octavian Ciobanu
Keyword(s):  
3D Reconstruction ◽  
Real Time ◽  
3D Model ◽  
Low Cost ◽  
Structured Light ◽  
3D Scanning ◽  
Kinect Sensor ◽  
Depth Sensor ◽  
3D Surfaces

Paper approaches some characteristics and bioengineering applications of a handheld depth sensor for low-cost 3D scanning and reconstruction. The Kinect depth sensor used in this work was launched on June 2009 and was based around a gaming webcam peripheral. The Kinect sensor uses a structured light technique in order to develop real-time 3D surfaces. The 3D model of anatomic surface may have a lot of bioengineering applications. Some observations and comparisons are presented in connection with the scanning and 3D reconstruction of different anatomic surfaces.

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