Browsing by Author "Montero Palacios, Oscar Daniel"

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Estudio de las metodologías para el análisis de transformaciones urbano-morfológicas alrededor del río Tomebamba y de su primera línea edificada mediante la reconstrucción tridimensional en base a la fotogrametría y escáner LIDAR, del tramo comprendido entre el puente del Centenario hasta el puente de Todos Santos
(2017) Montero Palacios, Oscar Daniel; Sardi Barzallo, Juan Sebastián; Hermida Palacios, María Augusta
With current technological advances, have been developed diverse tools for geographical, topographical, morphological, and archaeolo¬gical information that have contributed to the study of urban morphological transformations as well as its documentation and protection for human patrimonial structures. This study analyzes the use, benefit, and efficiency of some of these tools: digital ‘photo¬grametrics’ done through the use of unmanned air vehicles (UAV’s), conventional digital came¬ras, and LIDAR scanners. Through specialized software we concluded temporary comparative analysis between tridimensional models compo¬sed by clouds of points to identify morphological transformations in one sector of Tomebamba River. The advantage of use in these tools lays in the hyper realism and position to modifica¬te and alter each model. The main challenges are focused on the organization of the compiled data, the compatibility of each format, and the accessibility to these tools and try dimensional models. These last challenges should be priori¬tized in institutions which decide upon the archi¬tecture of the region itself.
Posibilidades de la reconstrucción tridimensional de zonas patrimoniales en base a fotogrametría y escáner LIDAR . El Barranco de la ciudad de Cuenca como caso de estudio
(2017) Sardi Barzallo, Juan Sebastián; Montero Palacios, Oscar Daniel; Hermida Palacios, María Augusta
The emerging need for up-to-date information, coupled with the lack of adequate documentation of historical city sectors, as well as the accelerated technological development of the time, has led to the creation of several tools for surveying geographic, topographic and archaeological information that may contribute to the study of urban-morphological transformations and to the documentation and protection of built heritage. With this background, the study aimed to validate a methodology for the identification and analysis of built heritage alterations. A detailed survey was carried out using aerial and terrestrial photogrammetry, based on the use of tools that generate two-dimensional data such as Drone DJI Phantom 4, Nikon D5300 camera, GoPro Hero 3 Black Edition camera, and an Iphone 7 Smartphone. In the same way, this study was complemented with a three-dimensional method, based on a LIDAR laser scanner. The data was obtained based on orthogonal drone flights, which were complemented by partial documentation of facades of some of the buildings in El Barranco de Cuenca, Ecuador, obtained through the before mentioned two and three-dimensional tools. This process was carried out twice, with an interval of 4 months, to identify changes. When completing the data processing, two cases were found where the buildings were altered in different magnitude. In addition, the research served to establish the most versatile instruments for the three-dimensional reconstruction of point clouds in the historical city of Cuenca. In this sense, the LIDAR technique is the tool that provided the best results, however, the survey took more time and was more expensive; on the other hand, considering the quality-price ratio, the DJI Phantom 4 drone turned out to be the most recommended device for this type of studies.