Integration of Hybrid Outdoor and Indoor Surveying. A Case Study in Spanish Renaissance Style Towers

Abstract

The fusion of different image- and range-based techniques is acknowledged as the best option for threedimensional surveying of objects displaying a complicated geometry at different scales and/or resolutions. A special case deserving still several challenges involves to towers which represent a compendium of constructive elements and, consequently, a large amount of problems related to conservation or maintenance interventions. In this work, we display an extended photogrametric approach which includes elements information systems in Architecture with a special regard to structural analysis and some aspects of materials analysis. We illustrate our approach with several examples regarding a hybrid surveying of architectural Renaissance towers which have been constructed in several agrarian zones of the kingdom of Castilla (Spain) along 16th and 17th centuries.