Abstract
Abstract. The proper control of built heritage entails many challenges related to the complexity of heritage elements and the extent of the area to be managed, for which the available resources must be efficiently used. In this scenario, the preventive conservation approach, based on the concept that prevent is better than cure, emerges as a strategy to avoid the progressive and imminent loss of monuments and heritage sites. Regular monitoring appears as a key tool to identify timely changes in heritage assets. This research demonstrates that the supervised learning model (Support Vector Machines – SVM) is an ideal tool that supports the monitoring process detecting visible elements in aerial images such as roofs structures, vegetation and pavements. The linear, gaussian and polynomial kernel functions were tested; the lineal function provided better results over the other functions. It is important to mention that due to the high level of segmentation generated by the classification procedure, it was necessary to apply a generalization process through opening a mathematical morphological operation, which simplified the over classification for the monitored elements.
Highlights
The proper control of built heritage entails many challenges related to the complexity of heritage elements and the extent of the area to be managed, for which the available resources must be efficiently used
(2011) mentions, preventive conservation in cultural heritage aims to avoid or mitigate the damages to a heritage property by understanding its risks and harmonizing the responsibility among actors and involved stakeholders. It promotes maintenance as a preservation strategy based on continuous monitoring of the heritage site
For the case of the city of Cuenca located in the southern Andes of Ecuador at 2500 ma.s.l.; which offers unique landscapes, fusion of different cultures and architectural qualities that have deserved its recognition as WHS in 1999 by the UNESCO
Summary
The proper control of built heritage entails many challenges related to the complexity of heritage elements and the extent of the area to be managed, for which the available resources must be efficiently used. As Van Balen (2011) mentions, preventive conservation in cultural heritage aims to avoid or mitigate the damages to a heritage property by understanding its risks and harmonizing the responsibility among actors and involved stakeholders It promotes maintenance as a preservation strategy based on continuous monitoring of the heritage site. Different architectural styles and traditional building typologies are still present in some of their aesthetic qualities such as: balconies, traditional windows or doors carpentries, roof structures, colonial courtyards, orchards and inner gardens Some of these elements can be recognized from guided visits through the historic centre. Measures to strengthen the control to follow up the changes over time and establish successful management strategies were suggested and implemented through processes of reactive and periodic monitoring
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