3D modeling of large and complex site using multi-sensor integration and multi-resolution data

The article describes a multi-resolution approach developed for the 3D modeling of the entire Roman Forum in Pompeii, Italy. The archaeological area, approximately 150 x 80 m, contains more than 350 finds spread all over the Forum as well as larger mural structures of previous buildings and temples. The interdisciplinary 3D modeling work consists of a multi-scale image- and range-based digital documentation method developed to fulfil all the surveying and archaeological needs and exploit all the potentialities of the actual 3D modeling techniques. Data's resolution spans from few decimetres down to few millimetres, both in geometry and texture. The employed surveying methodologies have pros and cons which will be addressed and discussed. The first results of the integration of the different 3D data in a unique and seamless textured 3D model will be presented