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

Figure 6

Simulation of 1 : 5000 scale Vector Technical Map updating in a dense urban area (category B): (a) 0.70 m QuickBird pan-sharpened orthorectified image, (b) digitization of buildings and roads, (c) 1 : 5000 scale Vector Technical Map of Cesano Maderno with some neighborhoods wiped out, (d) final map updating.

(a)

(b)

(c)

(d)