Updating Large Scale Topographic Databases in Italian Urban Areas with Submeter QuickBird Images

摘要

This paper presents some tests for the updating of the Italian Raster Regional Technical Map (RRTM) at 1: 10000 scale and of the Italian Vector Technical Map (VTM) at 1: 5000 scale using a submeter Quickbird imagery collected in a near flat urban area of the Northern Italy. Results show that the updating of the 1: 10000 scale cartography was always possible, while a rigorous updatingudof 1: 5000 scale cartography was possible only in few situations. Results are discussed with reference to the specifications requiredudfor the 1: 10000 scale and 1: 5000 scale topographic databases (DBs) production of the Lombardia Region, which is a reference for metric mapping purposes in Italy.