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.

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]

SALVATORE BARBA;
2016

Abstract

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.
Los continuos avances en los últimos años de equipos de levantamiento tridimensional han aumentado el abanico de posibilidades para el registro, documentación y difusión del patrimonio. Pero, y desde esta hipótesis partimos, aún existen obstáculos para la creación de modelos 3D fotorrealísticos y fidedignos en algunos ámbitos geométricos y radiométricos. Estos aparecen cuando las características de las piezas son adversas para su digitalización, es decir, la geometría del objeto carece de aristas definidas y/o su acabado no permite su registro, bien por su color, uniformidad, reflectancia, etc. Este estudio plantea y presenta resultados de un modelo fotorrealístico aplicado al levantamiento de una escultura de Jorge Oteiza. Obra caracterizada por una geometría y textura desfavorables a las ideales para su digitalización. La solución planteada pasa por una metodología fundamentada en la combinación de técnicas: modelos capturados mediante escáner óptico de triangulación Artec con el apoyo del software fotogramétrico PhotoScan en la fase de texturización.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4654620
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