Aplicación de la fotogrametría automatizada y de técnicas de iluminación con herramientas SIG para la visualización y el análisis de una piedra con relieves antropomorfos

Abstract

Lo más destacado: Representación y análisis de relieves y grabados sobre elementos pétreos mediante virtualización con fotogrametría y obtención de modelos digitales. Aplicación de herramientas de visualización y SIG para el estudio de microtopografías en patrimonio cultural de pequeño tamaño. Necesidad de desarrollar metodologías para el estudio y puesta en valor del patrimonio así como la reinterpretación del patrimonio ya estudiado. Extended Abstract:We present a methodological approach for the representation, visualisation and analysis of three-dimensional (3D) models of meaningful details in stone reliefs provided by digital documentation tools and subsequent processing. For this aim, anthropomorphous shapes engraved on a flat stone slab found in Sierra de Fontcalent (Alicante) are studied. The object under consideration was located near two archaeological sites, Cova del Fum -a cave with presence of the Chalcolithic material (López, 2010)-and the archaeological site of Fontcalent, with remains from different phases of occupation spanning from 7 th -6 th BC to the 20 th century (Ximénez, 2012).In the last few years, the use of digital tools provided by new technologies and software development has left traditional work methodology behind (De Reu et al., 2014) while enabling the development of new approaches to both minimise heritage alteration and provide objective and accurate information (Lopez-Menchero, Marchante, Vincent, Cárdenas, & Onrubia, 2017). 3D documentation allows recording of cultural heritage at a reasonable cost with precision and quality through digital photography and SfM (Structure from Motion) photogrammetry with specialised software (De Reu et al., 2013).

Andean pre-Hispanic pottery forming 3D analysis: a pilot study from Quebrada de Humahuaca (Argentina) using digital methods

“…The use of V-RTI appears as a very promising technique (Min et al, 2021) for the study of use-alteration traces in pottery (the Archaeological Computing Research Group of the University of Southampton provided very interesting examples of RTI on pottery), therefore, further studies must be conducted, using different techniques of acquisition and software. In this regard, not only testing MRM and V-RTI analyses in other archaeological vessels and sherds will allow refining digital pottery studies, but also different GIS or LiDAR tools that have provided promising results on other types of archaeological materials, such as DEM (Cabrelles, Lerma & Villaverde, 2020), hillshading, or LRM (Torregrosa-Fuentes et al, 2018), must be considered. Future studies in pottery collections from Quebrada de Humahuaca will incorporate larger samples of sherds and complete vessels, as well as other 2D and 3D digital methods.…”

Multi-light photogrammetric survey applied to the complex documentation of engravings in Palaeolithic rock art: the Cova de les Meravelles (Gandia, Valencia, Spain)

“…Thus, both RTI and highlight-RTI (H-RTI) were rejected. In addition, as the tiny engravings do not allow for the high-resolution 3D modelling of them, but the whole panel, virtual RTI (V-RTI) as well as other enhancing tools such as morphological relief models and visualisation effects (hill shading, sky-view factor, high-pass filtering…) might have been considered to be applied on the virtual 3D models [25][26][27].…”

La recuperación de los punzones de rúbrica de la terra sigillata hispánica del alfar romano de Isturgi (Los Villares de Andújar, Jaén) a partir de su digitalización, reconstrucción e impresión 3D

“…En este sentido, el V-RTI permite superar las limitaciones físicas derivadas de la metodología tradicional de esta técnica, al tiempo que su aplicación aumenta considerablemente las posibilidades de análisis y visualización de un modelo fotogramétrico bruto con una mínima inversión de tiempo adicional (Caine, Maggen & Altaratz, 2019;Carrero-Pazos, Vázquez-Martínez & Vilas-Estévez, 2016;Maldonado, 2020;Torregrosa-Fuentes, Spairani, Huesca, Cuevas & Torregrosa-Fuentes, 2018).…”