Exploring a Byzantine Crypt Through a High-Resolution Texture Mapped 3D Model: Combining Range Data and Photogrammetry

In recent years, high-resolution recording of heritage sites has stimulated a lot of research in fields like photogrammetry, computer vision, and computer graphics. Numerous algorithms and methodologies have been proposed in the literature. In practice, what a 3D photographer needs is a commercially available solution to this so-called as-built documentation. In this paper, we present an effective approach for photo-realistic 3D model building from the combination of photogrammetry and 3D range data. The method is applied to the virtualization of a Byzantine Crypt where geometrically correct texture mapping is essential to render the environment accurately in order to produce enticing virtual visits, apply virtual restoration techniques on the frescoes and remove architectural elements that have been added over the years so that the site can then be viewed in the correct historical context. A movie entitled "CARPINIANA" was created in order to demonstrate the results.Au cours des derni\ue8res ann\ue9es, l'enregistrement d'images haute r\ue9solution de sites historiques a stimul\ue9 beaucoup de recherches dans des domaines comme la photogramm\ue9trie, la visionique et l'infographie. Bon nombre d'algorithmes et de m\ue9thodologies ont \ue9t\ue9 propos\ue9s dans la documentation. En pratique, un photographe d'images 3D a besoin d'une solution commerciale fond\ue9e sur ces soi-disant documents conformes \ue0 l'ex\ue9cution. Dans le pr\ue9sent document, nous pr\ue9sentons une m\ue9thode efficace permettant de cr\ue9er un mod\ue8le 3D photo-r\ue9aliste en combinant la photogramm\ue9trie et des donn\ue9es 3D. Cette m\ue9thode est appliqu\ue9e \ue0 la virtualisation d'une crypte byzantine qui n\ue9cessite un mappage de texture g\ue9om\ue9triquement correct afin d'obtenir un rendu pr\ue9cis de l'environnement et de permettre des visites virtuelles attrayantes, d'appliquer les techniques de restauration aux fresques et de retirer les \ue9l\ue9ments architecturaux qui ont \ue9t\ue9 ajout\ue9s au fil des ans afin que le site puisse \ueatre interpr\ue9t\ue9 dans le contexte historique appropri\ue9. Un film intitul\ue9 "CARPINIANA" a \ue9t\ue9 cr\ue9\ue9 pour d\ue9montrer les r\ue9sultats.NRC publication: Ye