Documentación del patrimonio cultural. Método basado en la fusión de técnicas fotogramétricas y de escaneado óptico de triangulación [Cultural Heritage documentation. Method based on the fusion of optical scanning triangulation and photogrammetric techniques]

Continued progress in the last years of three-dimensional surveying equipment – software and hardware – have increased the range of possibilities for recording, documentation and dissemination of heritage. But, since this hypothesis left, there are still obstacles for creating photorealistic 3D models and accurate geometric and radiometric in some areas. These barriers arise when the characteristics of the pieces are adverse for scanning, i.e., object geometry lacks defined edges and / or finish does not permit registration or for its colour, uniformity, reflectance... whether sensors imaged-based or range-based. This study describes and presents results of a photorealistic model applied to the lifting of the sculptor Jorge Oteiza. Work characterized by unfavourable geometry and texture ideal for scanning. The solution proposed in this research involves a methodology based on a combination of techniques: models captured by optical triangulation scanner Artec supported photogrammetric software PhotoScan the texturing phase.