2Claus B. Towards fully automatic generation of city models [ A ]. In: International Archives of Photogrammetry and Remote Sensing [ C ]. Amsterdam: XIX. 2000.
3Jong-Hyeok JEONG, Masataka TAKAGI. Extraction Of Bridge Positions From Ikonos Images For Accuracy Control of Bridge Database [EB/OL]. http: //www. gisdevelopment. net/aars/acrs/2002/vhr/172. pdf