A Comparative Study between Scanning Devices for 3D Printing of Personalized Ostomy Patches

This papers presents a comparative study of three different 3D scanning modalities to acquire 3D meshes of stoma barrier rings from ostomized patients. Computerized Tomography and Structured light scanning methods were the digitization technologies studied in this research. Among the Structured Light systems, the Go!Scan 20 and the Structure Sensor were chosen as the handheld 3D scanners. Nineteen ostomized patients took part in this study, starting from the 3D scans acquisition until the printed ostomy patches validation. 3D mesh processing, mesh generation and 3D mesh comparison was carried out using commercial softwares. The results of the presented study show that the Structure Sensor, which is the low cost structured light 3D sensor, has a great potential for such applications. This study also discusses the benefits and reliability of low-cost structured light systems.

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PRECISION AND ACCURACY PARAMETERS IN STRUCTURED LIGHT 3-D SCANNING

ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ◽

10.5194/isprs-archives-xl-5-w8-7-2016 ◽

2016 ◽

Vol XL-5/W8 ◽

pp. 7-15 ◽

Cited By ~ 11

Author(s):

E. R. Eiríksson ◽

J. Wilm ◽

D. B. Pedersen ◽

H. Aanæs

Keyword(s):

State Of The Art ◽

Low Cost ◽

Structured Light ◽

Quantitative Measure ◽

Calibration Procedure ◽

Design Parameters ◽

Precision And Accuracy ◽

Structured Light Systems ◽

Encoding Strategy ◽

Cost Components

Structured light systems are popular in part because they can be constructed from off-the-shelf low cost components. In this paper we quantitatively show how common design parameters affect precision and accuracy in such systems, supplying a much needed guide for practitioners. Our quantitative measure is the established VDI/VDE 2634 (Part 2) guideline using precision made calibration artifacts. Experiments are performed on our own structured light setup, consisting of two cameras and a projector. We place our focus on the influence of calibration design parameters, the calibration procedure and encoding strategy and present our findings. Finally, we compare our setup to a state of the art metrology grade commercial scanner. Our results show that comparable, and in some cases better, results can be obtained using the parameter settings determined in this study.

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Fast 3D mesh generation using projection for line laser-based 3D Scanners

The Journal of the Korean Institute of Information and Communication Engineering ◽

10.6109/jkiice.2016.20.3.513 ◽

2016 ◽

Vol 20 (3) ◽

pp. 513-518

Author(s):

Kyungme Lee ◽

Hoon Yoo

Keyword(s):

Mesh Generation ◽

3D Mesh ◽

3D Scanners

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A High-Precision Registration Technology Based on Bundle Adjustment in Structured Light Scanning System

Mathematical Problems in Engineering ◽

10.1155/2014/897347 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 1

Author(s):

Jianying Yuan ◽

Qiong Wang ◽

Xiaoliang Jiang ◽

Bailin Li

Keyword(s):

High Precision ◽

Large Scale ◽

Structured Light ◽

Bundle Adjustment ◽

Scanning System ◽

Control Points ◽

Registration Method ◽

Global Control ◽

3D Data ◽

Structured Light Scanning

The multiview 3D data registration precision will decrease with the increasing number of registrations when measuring a large scale object using structured light scanning. In this paper, we propose a high-precision registration method based on multiple view geometry theory in order to solve this problem. First, a multiview network is constructed during the scanning process. The bundle adjustment method from digital close range photogrammetry is used to optimize the multiview network to obtain high-precision global control points. After that, the 3D data under each local coordinate of each scan are registered with the global control points. The method overcomes the error accumulation in the traditional registration process and reduces the time consumption of the following 3D data global optimization. The multiview 3D scan registration precision and efficiency are increased. Experiments verify the effectiveness of the proposed algorithm.

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Green water-based binders for LiFePO4/C cathode in Li-ion batteries: a comparative study

New Journal of Chemistry ◽

10.1039/d1nj01208h ◽

2021 ◽

Author(s):

Xiaojing Zhang ◽

xinyi Ge ◽

Zhigang Shen ◽

Han Ma ◽

Jingshi Wang ◽

...

Keyword(s):

Comparative Study ◽

Polyvinylidene Fluoride ◽

Low Cost ◽

Green Water ◽

Li Ion Batteries ◽

Environmental Friendliness ◽

Water Based ◽

Li Ion

Compared with environmentally harmful binder polyvinylidene fluoride (PVDF) in Li-ion batteries (LIBs), water-based binders have many advantages, such as low cost, rich sources and environmental friendliness. In this study, various...

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Melite Civitas Romana in 3D: Virtualization Project of the Archaeological Park and Museum of the Domus Romana of Rabat, Malta

Open Archaeology ◽

10.1515/opar-2020-0126 ◽

2021 ◽

Vol 7 (1) ◽

pp. 51-83

Author(s):

Davide Tanasi ◽

Stephan Hassam ◽

Kaitlyn Kingsland ◽

Paolo Trapani ◽

Matthew King ◽

...

Keyword(s):

Laser Scanning ◽

Structured Light ◽

Terrestrial Laser Scanning ◽

Archaeological Site ◽

South Florida ◽

Virtual Museum ◽

Current State ◽

Structured Light Scanning ◽

The University ◽

Archaeological Excavations

Abstract The archaeological site of the Domus Romana in Rabat, Malta was excavated almost 100 years ago yielding artefacts from the various phases of the site. The Melite Civitas Romana project was designed to investigate the domus, which may have been the home of a Roman Senator, and its many phases of use. Pending planned archaeological excavations designed to investigate the various phases of the site, a team from the Institute for Digital Exploration from the University of South Florida carried out a digitization campaign in the summer of 2019 using terrestrial laser scanning and aerial digital photogrammetry to document the current state of the site to provide a baseline of documentation and plan the coming excavations. In parallel, structured light scanning and photogrammetry were used to digitize 128 artefacts in the museum of the Domus Romana to aid in off-site research and create a virtual museum platform for global dissemination.

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

Heritage Science ◽

10.1186/s40494-021-00544-x ◽

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.

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A COMPARISON OF STRUCTURED LIGHT SCANNING AND PHOTOGRAMMETRY FOR THE DIGITISATION OF PHYSICAL PROTOTYPES

Proceedings of the Design Society ◽

10.1017/pds.2021.2 ◽

2021 ◽

Vol 1 ◽

pp. 11-20

Author(s):

Owen Freeman Gebler ◽

Mark Goudswaard ◽

Ben Hicks ◽

David Jones ◽

Aydin Nassehi ◽

...

Keyword(s):

Early Stage ◽

Structured Light ◽

Superior Performance ◽

Specific Design ◽

Model Quality ◽

Stage Design ◽

Design Changes ◽

Structured Light Scanning ◽

Early Stage Design

AbstractPhysical prototyping during early stage design typically represents an iterative process. Commonly, a single prototype will be used throughout the process, with its form being modified as the design evolves. If the form of the prototype is not captured as each iteration occurs understanding how specific design changes impact upon the satisfaction of requirements is challenging, particularly retrospectively.In this paper two different systems for digitising physical artefacts, structured light scanning (SLS) and photogrammetry (PG), are investigated as means for capturing iterations of physical prototypes. First, a series of test artefacts are presented and procedures for operating each system are developed. Next, artefacts are digitised using both SLS and PG and resulting models are compared against a master model of each artefact. Results indicate that both systems are able to reconstruct the majority of each artefact's geometry within 0.1mm of the master, however, overall SLS demonstrated superior performance, both in terms of completion time and model quality. Additionally, the quality of PG models was far more influenced by the effort and expertise of the user compared to SLS.

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