Combination of 3D Scanning, Modeling and Analyzing Methods around the Castle of Coatfrec Reconstitution

International audienceThe castle of Coatfrec is a medieval castle in Brittany constituting merely a few remaining ruins currently in the process of restoration. Beyond its great archeological interest, it has become, over the course of the last few years, the subject of experimentation in digital archeology. Methods of 3D scanning were implored in order to gauge comparisons between the remaining structures and their absent hypothetical ones, resulting in the first quantitative results of its kind. This paper seeks to introduce the methods which carried out said research, as well as to present the subsequent results obtained using these new digital tools

3D DIGITISATION AND RECONSTRUCTION OF A CAPITAL IN NORTHWESTERN GAUL: INTERIM RESULTS ON THE CITY OF ALET

[EN] The City of Alet is an important archaeological site in Brittany because it was in the late Iron Age the capital of the Coriosolites. The remains, scattered today in a neighbourhood of Saint-Malo, are highly heterogeneous. Because of its great archeological interest, it has become since 2015 the subject of experimentation in digital archeology. From 3D scanning and Ground Penetrating Radar experimentation, we started a 3D reconstruction of city including several levels of uncertainty and fuelling archaeological thoughts, the results of which are still in discussion.Bernard, Y.; Barreau, J.; Bizien-Jaglin, C.; Quesnel, L.; Langouët, L.; Daire, M. (2016). 3D DIGITISATION AND RECONSTRUCTION OF A CAPITAL IN NORTHWESTERN GAUL: INTERIM RESULTS ON THE CITY OF ALET. En 8th International congress on archaeology, computer graphics, cultural heritage and innovation. Editorial Universitat Politècnica de València. 438-440. https://doi.org/10.4995/arqueologica8.2015.4151OCS43844

Modelado en 3D de una puerta de la ciudad de Rennes del siglo XV: Portes Mordelaises

[EN] The Portes Mordelaises, remnants of the medieval city walls of Rennes, France, has been the subject of several archaeological excavations until 2017. From these excavations, we created a three-dimensional (3D) model of the site reconstructed as it would have appeared during the 15th century, including the surrounding plus the interiors of its famed towers. Once our efforts and results were officially recognised as being of national interest by the French Ministry of Culture and Communication, Department of Heritage and the National Museum Service of France, we presented our virtual model reconstruction in an exhibition curated by the Museum of Bretagne, entitled "Rennes, les vies d'une ville" (Rennes, the Lives of a City). This approach to 3D reconstruction of the site served to further study Rennes’ origins, its construction, organisation, as well as its historic relationship to surrounding territories. The main objective of this work was to investigate, using of a significant and com[ES] Las Portes Mordelaises, restos de las murallas medievales de la ciudad de Rennes, Francia, han sido objeto de varias excavaciones arqueológicas hasta el año 2017. A partir de estas excavaciones, pudimos crear un modelo tridimensional (3D) del sitio reconstruido tal y como habría aparecido durante el siglo XV, incluyendo los terrenos circundantes así como los interiores de sus famosas torres. Una vez que nuestros esfuerzos y resultados fueron reconocidos oficialmente como de interés nacional por el Ministerio de Cultura y Comunicación de Francia, el Departamento de Patrimonio así como el Servicio Nacional de Museos de Francia, presentamos nuestra reconstrucción del modelo virtual en una exposición gestionada por el Museo de Bretaña titulada "Rennes, las vidas de una ciudad”. Este enfoque de la reconstrucción en 3D del sitio sirvió para profundizar en el estudio de los orígenes de Rennes, su construcción, su organización, así como su relación histórica con los territorios circundantes. EBarreau, J.; Esnault, E.; Foucher, J.; Six, M.; Le Faou, C. (2020). 3D modelling of a 15th century city gate of Rennes: Portes Mordelaises. Virtual Archaeology Review. 11(22):41-55. https://doi.org/10.4995/var.2020.12653OJS41551122Ahmad, T., Afzal, M., Hayat, F., Asif, H. S., Ahsan, S., & Saleem, Y. (2012). Need for software design methodology for remote sensing applications. Life Sci Journal, 9(3), 2152-2156.Al-Baghdadi, M. A. S. (2017). 3D printing and 3D scanning of our ancient history: Preservation and protection of our cultural heritage and identity. International Journal of Energy and Environment, 8(5), 441-456.Alix, C., Carron, D., Roux-Capron, E., & Josserand, L. (2016). La porte Bannier, entrée principale de la ville d'Orléans aux XIVe-XVe siècles. Archeologie medievale, (46), 91-122. https://doi.org/10.4000/archeomed.2781Athanasoulis, D., Georgiou, A., Simou, X., Sfika, A., Klotsa, V., Zirogianni, T., Theodoropoulos, C., & Deligianni, E.-O. (2015). Bridging monuments through digital repository and graphic reconstruction methodologies. The Digital Enhancement Project of Argolid, Arcadia and Corinthia castles, Greece. In 2015 Digital Heritage, Vol. 1, (pp. 107- 110). Granada, Spain. https://doi.org/10.1109/digitalheritage.2015.7413846Auer, C. (2017). L'archéologie high tech - xenius arte. Retrieved February 16, 2017, from www.cnrs.fr/CNRSHebdo/bretagne-paysdeloire/actus.php?numero=11666Banfi, F., Brumana, R., & Stanga, C. (2019). Extended reality and informative models for the architectural heritage: from scan-to-BIM process to virtual and augmented reality. Virtual Archaeology Review, 10(21), 14-30. https://doi.org/10.4995/var.2019.11923Barreau, J. B. (2017). Techniques de production, d'exploration et d'analyse d'environnements archéologiques virtuels.(Production, exploration and analysis techniques of virtual archaeological environments) (Doctoral dissertation, INSA de Rennes, France). Retrieved from https://tel.archives-ouvertes.fr/tel-01633811/documentBarreau, J.-B., Bernard, Y., Petit, Q., Beuchet, L., Petit, E., Platen, V., Gaugne, R., Le Rumeur, J., & Gouranton, V. (2014). Combination of 3D scanning, modeling and analyzing methods around the castle of Coatfrec reconstitution. In Digital Heritage. Progress in Cultural Heritage: Documentation, Preservation, and Protection. EuroMed 2014 (pp. 418-426). Limassol, Cyprus. https://doi.org/10.1007/978-3-319-13695-0_40Barreau, J.-B., Gaugne, R., Bernard, Y., Le Cloirec, G., & Gouranton, V. (2013). The West Digital Conservatory of Archaelogical Heritage project. In 2013 Digital Heritage (pp. 1-8). Marseille, France. https://doi.org/10.1109/digitalheritage.2013.6743795Barreau, J.-B., Lanoe, E., & Gaugne, R. (2020). 3D sketching of the fortified entrance of the citadel of Aleppo from a few sightseeing photos. In Kremers H. (Ed.), Digital Cultural Heritage (pp. 359-371). Cham: Springer International Publishing. https://doi.org/10.1007/978-3-030-15200-0_24Barrera-Vera, J. A. (2005). Generation of virtual models of historical tapial walls in Seville (Spain). In VSMM 2005: proceedings of the eleventh International Conference on Virtual Systems and Multimedia: Virtual reality at work in the 21st century: impact on society. Ghent, Belgium.Bayraktar, C. (2016). V-RAY 3.3. Istanbul: Kodlab Yayin Dağitim Yazilim Ltd.şti.Boochs, F., Hoffmann, A., Huxhagen, U., & Welter, D. (2006). Digital reconstruction of archeological objects using hybrid sensing techniques-The example Porta Nigra at Trier. Bar International Series, 1568, 395-400.Bosser, A. G. (2004). 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8th. International congress on archaeology computer graphica. Cultural heritage and innovation

El lema del Congreso es: 'Documentación 3D avanzada, modelado y reconstrucción de objetos patrimoniales, monumentos y sitios.Invitamos a investigadores, profesores, arqueólogos, arquitectos, ingenieros, historiadores de arte... que se ocupan del patrimonio cultural desde la arqueología, la informática gráfica y la geomática, a compartir conocimientos y experiencias en el campo de la Arqueología Virtual. La participación de investigadores y empresas de prestigio será muy apreciada. Se ha preparado un atractivo e interesante programa para participantes y visitantes.Lerma García, JL. (2016). 8th. International congress on archaeology computer graphica. Cultural heritage and innovation. Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/73708EDITORIA