Archaeological investigations with TLS and GPR surveys and geomatics techniques

This study is part of an interdisciplinary project aimed to define a religious path characterized by identification and definition of places of artistic, religious and cultural history. We conducted some archaeological surveys with the help of the GPR (Ground Penetrating Radar) techniques and TLS (Terrestrial Laser Scanner). Both these techniques are increasingly used, over the years, in the field of archaeological applications, with the ability to provide non-invasive, however, characterizing the objects or places of interest both spatially (with the TLS) providing information on the morphology of the ground, both in their internal structure, investigating in the material (with the GPR). However, with the GPR, to obtain highly accurate information from raw images (B-Scan) and easier to use and understanding in the field of archaeology, it is often necessary to improve their quality. Typically, this is possible with the aid of appropriate treatment of the raw image called focusing techniques. We tested various approaches of these techniques; starting from the raw data acquired through equipment georadar, were carried out numerical processing times of application of algorithms pre-processing of the image, for its improvement, and focusing developed. For the TLS were carried elaborations in post processing algorithms and tested best-fitting for the shape recognition. All the surveys are made with GPS measurements that carry out all the tracks. Laser scanner and GPR allow to make three-dimensional surveys of archaeological features and then everything is canalized in a WebGIS that allows the user to view the results.