Papers by Aurore Mathys
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ZooKeys, 2014
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2013 Digital Heritage International Congress (DigitalHeritage), 2013
ABSTRACT We tested five 3D digitization systems and one method of 2D+ recording on one object: a ... more ABSTRACT We tested five 3D digitization systems and one method of 2D+ recording on one object: a human skull from the Royal Belgian Institute of Natural Sciences collection (RBINS). We chose a skull because it has both simple and complex structures and different materials such as bone and enamel within the same object. ISBN: 978-1-4799-3169-9 IEEE Catalog Number: CFP1308W-USB The results obtained with the different technologies were compared for 3D shape accuracy, texture quality, digitization and processing time and finally price. Our results show that the structured light scanner provided the best results to record external structures, CT was found to be the best to record internal structures and is also the best for recording reflecting material such as enamel. Photogrammetry is a very good compromise between portability, price and quality. RTI is a method of 2D+ recording and is a complementary technique, using the same equipment than photogrammetry, which can capture small morphological features that are not easily digitized with the 3D techniques.
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In the framework of the Belgian BELSPO AGORA 3D and DIGIT03 programs, we have been evaluating the... more In the framework of the Belgian BELSPO AGORA 3D and DIGIT03 programs, we have been evaluating the 3D digitising technologies regarding the quality of the acquisition, the capacities and limitations of each technique, but also the direct cost of the different 3D digitisation processes. It is on this latest topic that we focused for this paper.
In order to evaluate the cost of 3D digitisation, we are considering the time for the digitisation, the cost of the equipment and the cost of the staff.
Our preliminary results show that the real cost by specimen depends on the amount of specimens to digitise. Techniques that appear low-cost can be the most expensive in the framework of massive digitization programs, while a more expensive equipment can be more efficient in the long term. Therefore low-cost equipment’s are mainly recommended for occasional digitisation or small series.
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Conference Presentations by Aurore Mathys
Documentation of material cultural heritage is a core common interest to the participants of the ... more Documentation of material cultural heritage is a core common interest to the participants of the network ‘Colour and Space in Cultural Heritage’ (www.COSCH.info), supported by the European Cooperation in Science and Technology (COST) between 2012 and 2016. Although COSCH is a trans-domain Action in Materials, Physics and Nanosciences (TD1201) many of the over 200 participants are not scientists. Perspectives on the material cultural object are many within this diverse, interdisciplinary group. Despite this kind of collaborative research being well established, defining research questions of common interest and basic terms of communication is far from easy. This paper shares some observations drawn upon the COSCH experience and looks at the issues of colour and space in cultural heritage in six dimensions: disciplines and digital technology involved, data, documentation, development, and diffusion. To highlight the danger of assumed understanding, the term ‘dimensions’ is used here both as a mathematical term, indicating results of measurement, as well as figuratively, as a multitude of perspectives or views. The paper introduces a case study of ancient Roman coins, being undertaken by a group of ten researchers from different academic institutions, museums, and scientific laboratories in eight countries. The novelty of this exploratory study lies in the breadth of approaches and examination methods, applied to the same objects for effective comparison and evaluation. The paper does not present the results of the study, still in progress at the time of writing. The authors aim instead to highlight the challenge of articulating and understanding the multiplicity of interdisciplinary questions involved.
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Papers by Aurore Mathys
In order to evaluate the cost of 3D digitisation, we are considering the time for the digitisation, the cost of the equipment and the cost of the staff.
Our preliminary results show that the real cost by specimen depends on the amount of specimens to digitise. Techniques that appear low-cost can be the most expensive in the framework of massive digitization programs, while a more expensive equipment can be more efficient in the long term. Therefore low-cost equipment’s are mainly recommended for occasional digitisation or small series.
Conference Presentations by Aurore Mathys
In order to evaluate the cost of 3D digitisation, we are considering the time for the digitisation, the cost of the equipment and the cost of the staff.
Our preliminary results show that the real cost by specimen depends on the amount of specimens to digitise. Techniques that appear low-cost can be the most expensive in the framework of massive digitization programs, while a more expensive equipment can be more efficient in the long term. Therefore low-cost equipment’s are mainly recommended for occasional digitisation or small series.