3D Scanning of Semitransparent Amber with and without Inclusions

Kaczmarek, Adam L.; Lebiedź, Jacek; Jaroszewicz, J. L.; Święszkowski, Wojciech

doi:10.24132/csrn.2021.3101.16

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…Previous research methodologies regarding amber have focused on gathering information about its properties, volume analysis, hardness and optical parameters, They provided general descriptions of the studied material and served as a source of information to support the decision-making process regarding its processing. Over time, additional methods and tools were used for general assessment (for example, the Mohs scale for the quick approximation of mineral hardness) and for a detailed evaluation of this property (sclerometers) [22,23] alongside refractometers to determine refractive index [24,25]) and an intense assessment of materials (tomographs and equal baseline camera array for voxel grid creation corresponding to density and inclusion distribution [8]). Complete gemstone identification typically requires multiple tests and techniques, such as spectroscopy, density measurement and the observation of microscopic features.…”

Section: Traditional Methods Of Examining Amber Structurementioning

confidence: 99%

“…However, with the advancement of computer-aided design and scanning devices, a breakthrough has occurred, enabling the use of tools that were once only within the realm of designers' dreams. Three-dimensional scanning technology allows for the acquisition of virtual models that reflect the shapes of gemstones, allowing work with models in virtual space [8,9]. The use of virtual gemstone and jewellery models reduces costs (financial investments) in producing a particular item by minimising material losses during the grinding process [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimising Amber Processing Using 3D Scanning: New Perspectives in Cultural Heritage

Korga,

Dziedzic,

Skulimowski

et al. 2023

Applied Sciences

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This article aims to present the practical and functional application of advanced 3D scanning technologies in the process of designing products made of amber. The processing of amber is complex and expensive because mass or serial production is not possible. Moreover, processing is challenging because each product is treated as unique and requires individual handling. The optimisation process is illustrated using the example of amber blocks that were scanned to obtain virtual 3D models. The scope of this work includes the characterisation of three-dimensional jewellery design processes, along with a description of a wide range of methods and functions used in computer-aided jewellery design. The use of computer-aided design software for developing virtual models of decorative products used in goldsmithing is described in this paper. The obtained sets of models underwent engineering analysis using Boolean algebra and data science calculations. In this way, a design methodology was developed regarding the selection of input material as the unprocessed stone for jewellery modelling. The developed method allows for the minimisation of material waste, which is associated with reducing costs in the processing of amber. This article also describes the differences between previous traditional methods and the authors’ proprietary method. The proposed methodology can be implemented in jewellery workshops specialising in the processing of materials.

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Section: Traditional Methods Of Examining Amber Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimising Amber Processing Using 3D Scanning: New Perspectives in Cultural Heritage

Korga,

Dziedzic,

Skulimowski

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Some the best of them are deployed over time in the university's didactics and become qualified candidates to convert them to the fully immersive, interactive and high-performance CAVE applications. There are also individual cases of building dedicated applications for research in the field of computer graphics, such as ray tracing in heterogeneous environments for example [Kacz21a]. I3DVL also receives ocassionally a small number of candidate applications developed by the third parties (mostly co-operating SMEs) with a request to deploy them in the bigCAVE.…”

Section: Production Stages and Product Decisionsmentioning

confidence: 99%

Featured based CAVE software factory

Lebiedź¹,

Wiszniewski²

2022

CSRN

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In the paper we convey the lessons learned along the path we have gone through several years since establishing a room-sized CAVE installation at our university, from craft manufacturing and ad-hoc software reuse of VR soft- ware products to the robust feature driven software product line (SPL) implementing the Product Line Engineering (PLE) factory paradigm. With that we can serve all our departments and other entities from the region by rapidly instantiating different VR products based on a standard set of core assets and driven by a set of common features of VR applications destined to be deployed in the same target CAVE system – with the minimal budget and time to market requirements. A comprehensive survey of the most representative CAVE applications created in Gdansk Tech Immersive 3D Visualization Lab (I3DVL) according to PLE paradigm presented in the paper provides evi- dence supporting this claim.

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Equal Baseline Camera Array—Calibration, Testbed and Applications

Kaczmarek

Blaschitz

2021

Applied Sciences

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This paper presents research on 3D scanning by taking advantage of a camera array consisting of up to five adjacent cameras. Such an array makes it possible to make a disparity map with a higher precision than a stereo camera, however it preserves the advantages of a stereo camera such as a possibility to operate in wide range of distances and in highly illuminated areas. In an outdoor environment, the array is a competitive alternative to other 3D imaging equipment such as Structured-light 3D scanners or Light Detection and Ranging (LIDAR). The considered kinds of arrays are called Equal Baseline Camera Array (EBCA). This paper presents a novel approach to calibrating the array based on the use of self-calibration methods. This paper also introduces a testbed which makes it possible to develop new algorithms for obtaining 3D data from images taken by the array. The testbed was released under open-source. Moreover, this paper shows new results of using these arrays with different stereo matching algorithms including an algorithm based on a convolutional neural network and deep learning technology.

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3D Scanning of Semitransparent Amber with and without Inclusions

Cited by 3 publications

References 17 publications

Optimising Amber Processing Using 3D Scanning: New Perspectives in Cultural Heritage

Optimising Amber Processing Using 3D Scanning: New Perspectives in Cultural Heritage

Featured based CAVE software factory

Equal Baseline Camera Array—Calibration, Testbed and Applications

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