Call for papers: CAA 2016, section 6, Computer tools for depicting shape and detail in 3D archaeological models. Deadline for paper submission 25 October 2015. Communications, posters and audio-visual material will be accepted, especially those that deal with new computer techniques, to depict shape and detail in 3D archaeological models.
by M. Carrero-Pazos, A. Vázquez-Martínez
B. Vilas-Estévez, M. Miguel Busto-Zapico
Computer tools for depicting shape
and detail in 3D archaeological models
CAA 2016, section 6 – call for papers
deadline for paper submission 25 October 2015
Archaeology has been long characterized by the interdisciplinarity and the transversality of their approaches and methodologies. In this context, we strongly believe that a proposal of a session that considers the use of the New Technologies (NNTT) on the fields that deal with computer tools for depict shape and detail in 3D archaeological models, and their application in archaeology is necessary. At the same time, we might see the impact that other sciences could have into Archaeology and how it is seen through them.
In the field of archaeological research, the use of the NNTT are widely spread due to their technical profits, as quicker methodologies to obtain archaeological data or carrying out some analysis that will be impossible to conduct manually. We should not forget that the use of these techniques allow us to get greater objectification of the archaeological record.
From this perspective, the possibilities of the application of the NNTT to Archaeology are almost unlimited. In this sense, since its beginning, Processual and Post-processual Archaeology has been joining the benefits of the computer science advancements. Therefore, we are able to consider a strong consolidated research field.
Since the beginning of Informatics’ Era, different branches of archaeological research have been arisen. One of them has been the representation and study of archaeological elements by their virtual reconstruction (3D). From this view, different approaches have appeared, especially since the turn of the century, which put the attention on the development of visual techniques to implement archaeological 3D models.
That is particularly the case regarding the Polynomial Texture Mapping technique, from RTI methodology -Reflection Transformation Imaging- (Malzbender, et al., 2001). Or its counterpart, the virtual RTI, which combines reflection transformation techniques with photogrammetry and no intrusive digitalization, in order to create an advanced level of interaction with the 3D model, and to enhance the topographic surface (Earl, Beale, Martínez, Pagi, 2010). Moreover, the Morphological Residual Model (MRM), a recent technique (currently inaccessible) which also enables a better visualization of 3D model details has to be denoted (Caninas, et al. 2011; Pires, et al., 2014; Correia Santos, et al., 2014; Correia Santos, et al., 2015; Pires, et al., 2015).
On the other hand, with the development of free and open access software like Meshlab, it has been multiplied the contributions to the creation of rendering plugins (or shaders), which analyse some characteristics of the 3D model to enhance them. Perhaps one of the most relevant is the Radiance Scaling (Vergne, et al., 2010), an expressive rendering which enhance the 3D model concavities and convexities.
The application of these techniques to the study of archaeological objects and structures is not new, but it has been steadily increasing since the last decade.
Everything that has been said before show us the framework or context in which our session will take place. Our aim is to show different examples of 3D visual techniques, which have been planned or developed to use with computer tools. In this sense, we will be able to reflect about the advantages and the challenges of the interdisciplinarity and the transversality of our discipline and the use of NNTT in Archaeology.
Nowadays the NNTT are a fundamental part of the development of the archaeological research. In many cases, the future of our discipline is to adapt and absorb new methods and models developed in other scientific fields. The purpose of our meeting will be to learn from those so heterogeneous experiences, and show how the use of other techniques can help Archaeology to plan and resolve different archaeological problems.
Communications, posters and audio-visual material will be accepted, especially those that deal with new computer techniques, to depict shape and detail in 3D archaeological models.
Miguel Carrero-Pazos, Alia Vázquez-Martínez
Department of History I, University of Santiago de Compostela, Spain
Department of Cultural Astronomy and Astrology, University of Wales Trinity Saint David, United Kingdom
Department of Art History and Musicology, University of Oviedo, Spain
CANINAS, J. C., HENRIQUES, F., BATISTA, Á., PIRES, H., 2011, “Pedra das Cruzinhas: notícia de um monólito gravado na fronteira entre os concelhos do Sabugal e da Guarda”, Sabucale, 3, pp. 35-56.
CORREIA SANTOS, M. J., PIRES, H., SOUSA, O., 2014, “Nuevas lecturas de las inscripciones del santuario de Panóias (Vila Real, Portugal)”, Sylloge Epigraphica Barcinonensis (SEBarc) XII, Barcelona, pp. 197-224.
CORREIA SANTOS, M. J., SOUSA, O., PIRES, H., FONTE, J., GONÇALVES-SECO, L., 2015, “Travelling back in Time to Recapture Old Texts. The use of Morphological Residual Model (M.R.M.) for epigraphic reading: four case studies (CIL 02, 02395a, CIL 02, 02395c, CIL 02, 02476, CIL 02, 05607)”, In Acts of Information Technologies for Epigraphy and Cultural Heritage. Proceedings of the first EAGLE International Conference, Europeana Eagle project. Studi umanistici- Antichistica, Sapienza Universitá Editrice, pp. 437-450.
EARL, G., BEALE, G., MARTINEZ, K., PAGI, H., 2010, “Polynomial Texture Mapping and Related Imaging Technologies for the Recording, Analysis and Presentation of Archaeological Materials”. In International Society for Photogrammetry and Remote Sensing, vol. XXXVIII, Part 5, pp. 218-223.
MALZBENDER, T., WILBURN, B., GELB, D., AMBRISCO, B., 2006, “Surface enhancement using real-time photogrammetric stereo and reflectance transformation”. In Eurographics Symposium on Rendering, pp. 245-250.
PIRES, H., FONTE, J., GONÇALVES-SECO, L., CORREIA SANTOS, M. J., SOUSA, O., 2014, Morphological Residual Model. A Tool for Enhancing Epigraphic Readings of Highly Erosioned Surfaces, EAGLE- Information Technologies for Epigraphy and Cultural Heritage in the Ancient World. Paris, pp. 133-144.
PIRES, H., MARTÍNEZ RUBIO, J., ELORZA ARANA, A., 2015, “Techniques for revealing 3D hidden archaeological features: morphological residual models as a virtual-polynomial texture maps”, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, volumen XL-5/W4, 2015 3D Virtual Reconstruction and Visualization of Complex Arquitectures, 25-27 February 2015, Avila, Spain, pp. 415-421.
VERGNE, R., VANDERHAEGUE, D., CHEN, J., BARLA, P., GRANIER, X., SCHILICK, C., 2011, “Implicit brushes for stylized line-based rendering”, Computer Graphics Forum, 30 (2), pp. 513-522.