Title :
An application of stereomatching to the problem of geo-referencing historical air-photos
Author :
O´Dwyer, S. ; Lewis, P. ; Muller, J-P.
Author_Institution :
Univ. Coll. London, UK
Abstract :
This paper describes the application of a stereomatching algorithm to the problem of geo-rectifying a set of declassified military air photos over Cat Tien National Park, Vietnam. A disparity model, related to topographic features, is first built and then co-registered to a geo-referenced elevation model to provide the transformation required to correct the air-photos. Accuracy of results is assessed through correlation coefficients between retrieved disparities and known elevations.
Keywords :
image matching; stereo image processing; terrain mapping; vegetation mapping; Cat Tien National Park; Vietnam; aerial photographs; correlation coefficients; declassified military air photos; digital elevation model; disparity model; georeferenced elevation model; military air photo; stereomatching algorithm; topographic features; Data mining; Databases; Digital elevation models; Educational institutions; Information resources; Military satellites; Photography; Remote sensing; Spatial resolution; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293713
