Advances in digital photogrammetry and mapping from space

Advances in space sensor technology have radically transformed the capabilities of our cartographic institutions. Space sensors are imaging the Earth’s surface with higher resolution year after year. Algorithms for sensor modeling are becoming more accurate. Some researchers even claim that the use of space images instead of traditional aerial photographs reduces the costs of map production on some scales. Additionally, imagery from space has major advantages for the cartography of large countries, the creation of general map products and the automation of cartographic production. Recent evaluations of space photogrammetric techniques indicate the revolution in cartography is just beginning.