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Interview Preparedness
Published in G.K. Awari, C.S. Thorat, Vishwjeet Ambade, D.P. Kothari, Additive Manufacturing and 3D Printing Technology, 2021
G.K. Awari, C.S. Thorat, Vishwjeet Ambade, D.P. Kothari
Response:Yes, but the results will be different. Also, it really depends on the scanning method chosen. Many 3D scanning machines use a series of 2D photos to develop or create a substantive 3D model of the object.Also, most of the 3D-printed figures are prepared from a multitude of 2D pictures that are stitched together.“Scandi” is an app that allows users to take 360° perspective drawings. Images can then be printed in 3D color in the mode of a sphere. This allows for a greater mesmerizing photo viewing experience. Apps also permit the users to take 3D photos to design 3D models of people, animals or objects and if 3D model to be developed, Scandi will print it.
Data fusion and shape retrieval methods for 3D geometric structures
Published in Paulo Jorge Bártolo, Artur Jorge Mateus, Fernando da Conceição Batista, Henrique Amorim Almeida, João Manuel Matias, Joel Correia Vasco, Jorge Brites Gaspar, Mário António Correia, Nuno Carpinteiro André, Nuno Fernandes Alves, Paulo Parente Novo, Pedro Gonçalves Martinho, Rui Adriano Carvalho, Virtual and Rapid Manufacturing, 2007
This paper has investigated existing non-contact scanning methods and processes used in industry and research centers for product development, design and manufacture. The research offers the following conclusions: (a) Part geometry has become complex. As a result, thousands or even millions of points are required to accurately model geometrically complex parts. CMM technology is not suitable for such parts; (b) New materials are constantly being introduced in today’s products. Measuring the surface of flexible or fragile parts with a CMM can lead to indentation, thus reducing the overall accuracy or damaging the part. (c) Currently, there are two major applications for 3D scanning technology, reverse engineering and redesign. Gradually, however, the focus is being shifted to the inspection and tele-manufacturing fields. (d) The use of diverse data is hardly noticeable, though it is available via non-contact technologies.
A morphological comparison between physical and digital model generated by 3D scanning
Published in Fernando Moreira da Silva, Helena Bártolo, Paulo Bártolo, Rita Almendra, Filipa Roseta, Henrique Amorim Almeida, Ana Cristina Lemos, Challenges for Technology Innovation: An Agenda for the Future, 2017
R. Barbosa, L. Mateus, V. Ferreira, J. Beirão
The 3D scanning is the process of capturing the shape of an object to transform it into a three-dimensional digital drawing, which is virtually represented as a point cloud. The position of points in space is obtained by the triangulation of the radiation emitted by the equipment and reflected by the surfaces upon which it was incident, having as base the distance between the emitter and receiver. In this research case we used a Next-Engine laser scanner.
Morphological Box Classification Framework for supporting 3D scanner selection
Published in Virtual and Physical Prototyping, 2018
W. L. K. Nguyen, A. Aprilia, A. Khairyanto, W. C. Pang, G. G. L. Seet, S. B. Tor
3-Dimensional (3D) scanning is defined as ‘a method of acquiring the shape and size of an object as a 3-Dimensional representation by recording x,y,z coordinates on the object’s surface, and through software, the collection of points is converted into digital data’ (ASTM 2015). The input is a physical article, while the output is the digital spatial information of the article. 3D scanning evolves from ranging technologies. The traditional applications of 3D scanning include inspection and reverse engineering (RE) purposes, to create new designs, modify existing designs, design large items, and repair worn parts (Motavalli and Bidanda 1991). The Computer aided design (CAD) model created by 3D scanners can be further used for structural analysis using finite element analysis, and for designing for structural optimisation (Deng and Suresh 2016, 2017a, 2017b). Non-engineering applications of 3D scanning have also been emerging, from clothes fitting (Paquette 1996), identifying facial expressions (Stuyck et al. 2014), to collection of biometric data (Viana et al. 2016), and sporting applications (Friel et al. 2015). The increased utilisation of 3D scanning would give rise to the development of new 3D scanning techniques, such as the 12-camera close-range photogrammetry (Pesce et al. 2016), magnetic angular rate gravity (MARG) sensor alignment and distortion compensation methodology (Grivon et al. 2013), small-angle X-ray scattering (SAXS) method (Georgiadis et al. 2015), and dip transformation (Aberman et al. 2017).
Foot morphological variations between different ethnicities and sex: a systematic review
Published in Footwear Science, 2023
Caoimhe Hoey, Albert Wang, Roshan Jonash Raymond, Ashwin Ulagenthian, Katrine Okholm Kryger
Although 3D scanning is not without intra and inter-observer errors (Kouchi & Mochimaru, 2011), it should be used when collecting foot morphological data in future research. 3D scanning is more reliable, accurate and has a reduced incidence of human error (Lee et al., 2014; Telfer & Woodburn, 2010). Future studies should aim to report their inter/intra-rater reliability and equipment accuracy level and validity when carrying out measurements of the foot and indeed the entire body.