SFM Photogrammetry as a Tool for the Conservation of the Cultural Heritage of Bogotá (Colombia), Within the Framework of the Adopt a Monument Program

Abstract

Abstract. As stated by the UNESCO, cultural heritage is both a product and a process that provides societies with a wealth of resources that are inherited from the past, they are currently created present and transmitted to future generations for their benefit. According to its needs each country has regulated and taken actions aimed at preserving its heritage (UNESCO,2017). In the case of the city of Bogotá, different regulations have been enacted seeking to protect and preserve the cultural heritage. Recently, the Instituto Distrital de Patrimonio Cultural (IDPC) (District Institute of Cultural Heritage), with the Secretaria de Planeación Distrital and the Instituto de Desarrollo Urbano, began developing work of an inventory and valuation of the sculptures and monuments found in the public space of Bogotá. In this context, this project seeks to contribute, from the academy, in the virtualization of the cultural heritage of the city by using the Photogrammetry SfM. For this purpose, two emblematic monuments of the city have been selected in order to reconstruct them three-dimensionally and therefore contribute to their conservation as a heritage. The chosen monuments correspond to a replica of the sculpture of San Agustín No. 28 which represents the God of War of that culture and the Rebeca, first nude located in public place in Bogota. Several images were taken from each monument, using different device and software’s. The product obtained meets the initial expectation of three-dimensional reconstruction and establishes a workflow to be applied to other monuments in the city or anywhere.

Low Cost 3d Reconstruction of Cave Paintings for the Conservation of Colombian Historical Memory: Case Study Indigenous Rock Art of the Sacred Place “Piedras De Tunjo”

“…The pictographs on the rock are now believed to date back more than 12,000 years. Although there are multiple images and videos of the site, this project seeks to approach the 3D reconstruction of an area of the park through SfM photogrammetry (Structure-from-Motion -Westoby, 2012) with a low-cost and easy-to-implement methodology (Santagati et al, 2017;Tavera et al, 2019) to promote historical conservation and Colombian cultural heritage in an indigenous sacred place to democratize it. This work documents different experiments and their results, of the 3D reconstruction using different data sources and software that will allow it to be an input in archeology to better understand the indigenous history of the area that was deteriorated in the 20th century.…”