A Comparison of Structured Light Scanning and Photogrammetry for the Digitisation of Physical Prototypes

Gebler, Owen Freeman; Goudswaard, Mark; Hicks, Ben; Jones, David; Nassehi, Aydin; Snider, Chris; Yon, Jason

doi:10.1017/pds.2021.2

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…As expected from previous cases reported in the literature [44][45][46], the SfM model derived from photographs taken using a 20.2 Megapixel sensor produced less detail and more distortion in the mesh than that obtained using SLS. However, this does not necessarily mean that an image-based method cannot produce similar data density and geometric accuracy.…”

Section: Discussionsupporting

confidence: 83%

The Use of Virtual Reflectance Transformation Imaging (V-RTI) in the Field of Cultural Heritage: Approaching the Materiality of an Ancient Egyptian Rock-Cut Chapel

Di Iorio,

Es Sebar,

Croci

et al. 2024

Applied Sciences

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Recent progress in the realm of imaging technologies has swiftly disseminated fresh methodologies for representing objects, broadening the horizons for scholars such as art historians, archaeologists, conservators, and conservation scientists. Reflectance Transformation Imaging (RTI) and three-dimensional (3D) modeling via Structure from Motion (SfM) have rapidly gained popularity and are being employed by a wide range of users, expanding the possibilities for understanding objects of material cultural heritage from different perspectives. This paper explores the outcomes achieved through the application of these techniques to gain deeper insights into the surface of a bas-relief within a confined space. This methodology enhanced our understanding of the original sandstone surfaces of the bas-relief by integrating RTI and 3D visualization, thereby acquiring a novel investigative tool with enhanced illumination possibilities. A data fusion approach is proposed using photogrammetry to produce a Virtual RTI (V-RTI). In the case study reported in this paper, focusing on one inner wall of the chapel of Ellesiya at the Museo Egizio of Turin, V-RTI was employed to obtain useful surface information in a context where conventional RTI would have been impossible to achieve. Finally, the study compares the different techniques through direct qualitative and quantitative analysis, highlighting possible future developments from both instrumental and methodological points of view.

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Section: Discussionsupporting

confidence: 83%

The Use of Virtual Reflectance Transformation Imaging (V-RTI) in the Field of Cultural Heritage: Approaching the Materiality of an Ancient Egyptian Rock-Cut Chapel

Di Iorio,

Es Sebar,

Croci

et al. 2024

Applied Sciences

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“…Unfortunately, information on the accuracy of the obtained model is available for only a few systems belonging to this group. However, from the comparative analysis presented in [26], no worse results can be expected to be obtained with this technique than from the photogrammetry technique. For example, the Twinstant Mobile by Twindom system, costing $26,995, allows a resolution of 0.7 [mm].…”

Section: State Of the Art Reviewmentioning

confidence: 97%

Mechatronic Design and Experimental Research of an Automated Photogrammetry-Based Human Body Scanner

Trojnacki¹,

Dąbek

Jaroszek³

2023

Sensors

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The article concerns the mechatronic design and experimental investigations of the HUBO automated human body scanning system. Functional problems that should be solved by using the developed scanning system are defined. These include reducing the number of sensors used while eliminating the need to rotate a human and ensuring the automation of the scanning process. Research problems that should be the subject of experimental research are defined. The current state of the art in the field of systems and techniques for scanning the human figure is described. The functional and technical assumptions for the HUBO scanning system are formulated. The mechanical design of the scanner, the hardware and information system architectures as well as the user’s mobile application are presented. The method of operation of the scanning system and its innovative features are discussed. It is demonstrated that the developed solution of the scanning system allows the identified problems to be overcome. The methodology of the experimental research of the scanning system based on the photogrammetry technique is described. The results of laboratory studies with the use of dummies and experimental research with human participation are presented. The scope of the research carried out allows answers to the identified research problems related to the scanning of the human figure using the photogrammetry technique to be obtained. As part of laboratory tests using a measuring dummy, a mean error of 0.65 mm and standard deviation of the mean of 0.65 mm were obtained for the best scanner configuration. Research with human participation was carried out for the scanner version, in which the scanning time was 30 s, with the possibility of its reduction to 15 s. The results of studies using realistic dummies and with human participation were compared using the root mean square error parameter (RMSE) provided by the AliceVision framework, which was available for all analyzed objects. As a result, it was observed that these results are comparable, i.e., the RMSE parameter is equal to about 1 px.

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Pursuing perfect 2D and 3D photography in neuroanatomy: a new paradigm for staying up to date with digital technology

Vigo²,

Klein³

et al. 2022

Journal of Neurosurgery

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A Comparison of Structured Light Scanning and Photogrammetry for the Digitisation of Physical Prototypes

Cited by 3 publications

References 13 publications

The Use of Virtual Reflectance Transformation Imaging (V-RTI) in the Field of Cultural Heritage: Approaching the Materiality of an Ancient Egyptian Rock-Cut Chapel

The Use of Virtual Reflectance Transformation Imaging (V-RTI) in the Field of Cultural Heritage: Approaching the Materiality of an Ancient Egyptian Rock-Cut Chapel

Mechatronic Design and Experimental Research of an Automated Photogrammetry-Based Human Body Scanner

Pursuing perfect 2D and 3D photography in neuroanatomy: a new paradigm for staying up to date with digital technology

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