Title :
Metropogis: a city information system
Author :
Karner, K. ; Bauer, J. ; Klaus, A. ; Schindler, K.
Author_Institution :
VRVis Res. Center, Graz, Austria
Abstract :
We report on a new system to augment a 3D block model of a real city obtained from aerial photogrammetry or aerial laser scanning with geo-referenced terrestrial data of the facades. The terrestrial images are acquired by a hand-held digital consumer camera. The relative orientation of the photographs is calculated automatically and fitted towards the 3D block model with minimized human input using vanishing points. The extraction of 3D primitives on the facades is based on line matching over multiple oriented images. The introduced city information system delivers a fully 3D geographic information data set and is called MetropoGIS.
Keywords :
feature extraction; geographic information systems; image matching; image sequences; 3D block model; 3D geographic information data set; 3D primitives extraction; MetropoGIS; aerial laser scanning; aerial photogrammetry; city information system; geo-referenced terrestrial data; hand-held digital consumer camera; image sequences; line matching; photograph orientation; terrestrial images; vanishing points; virtual city models; Cities and towns; Data mining; Digital cameras; Humans; Image edge detection; Image segmentation; Information systems; Laser modes; Traffic control; Usability;
Conference_Titel :
Image Processing. 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7622-6
DOI :
10.1109/ICIP.2002.1039025
