期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-5/C53
出版社：Copernicus Publications
摘要：In the archaeological area of Augusta Bagiennorum different tests have been performed since 1990, in order to support the archaeological scientists using geomatics techniques. Photogrammetric aerial surveys (both helicopter and aircraft platforms were used) for large scale mapping, implementation of Geographic Information System devoted to archaeological investigations and Lidar surveys have been performed. This archaeological scenario is an optimal test site to test the performances of the UAV prototype developed for ITHACA (Information Technology for Humanitarian Assistance, Cooperation and Action), a Centre of Excellence created by Politecnico di Torino (DITAG) and Si.T.I. (Istituto Superiore sui Sistemi Territoriali per l'Innovazione) to support the UN WFP (Word Food Programme) activities. The main goal of the UAV project is to support disaster management through an innovative and effective tool for rapid mapping purposes in the early impact stage. The UAV is easily transportable on normal aircrafts and usable on the field, autonomously, by a couple of operators. The platform is equipped with the autopilot MP2128 g , which allows an autonomous flight except for take-off and landing, and with digital sensors characterised by geometric and radiometric resolutions suitable for digital photogrammetry. The Augusta Bagiennorum archaeological area was surveyed using the Ricoh GR commercial digital camera. The camera was mounted on a pod mounted on the belly of the fuselage and allows to have a GSD (Ground Sample Distance) of about 75 mm, a 257 m side coverage and a shooting time interval of about 4,5 s flying at an altitude of 200 m with an average speed of 15 m/s. The availability of stereo pairs allow to rapidly update existing maps, and to perform a 3D feature extraction devoted to the identification of areas that requires further investigations The main objectives of the tests are: - the evaluation of the 3D mapping accuracy in order to state the suitability for archaeological purposes; - the analysis of the information content, in order to verify if the required map entities are easily recognisable on the images
