2nd International Conference on GeoComputation

Image Registration Issues for Change Detection Studies

Steven A. Israel and Roger A. Carman

University of Otago
Department of Surveying
PO Box 56, Dunedin, New Zealand

Email: israel@spheroid.otago.ac.nz

Michael J. Duggin

State University of New York - College of Environmental
Science and Forestry
Faculty of Forest Engineering
Syracuse, New York 13210, USA

Michael R. Helfert

Southeast US Regional Climate Center
South Carolina Department of Natural Resources
1201 Main Street Suite 1100
Columbia, South Carolina 29201, USA

Presented at the second annual conference of GeoComputation 97 & SIRC 97, University of Otago, New Zealand, 26-29 August 1997


Change detection studies require that all spatial informa-tion be registered to a common coordinate frame. A pre-vious image-to-map rectification study was performed by registering pixel locations to map positions in a local coor-dinate frame for all images in the time series. However, the precision of this study was unable to be quantified due to the uncertainty of the map generalisation (Israel et al. 1996). A better technique is to register a single image to the coordinate frame either by using conventional survey techniques, such as GPS, or by having known camera posi-tion and orientation parameters (internal and external control). The geocoded image becomes the base map. The other images are then registered to the image base map. In this case study, we have used the North Basin of the Dead Sea as our study area. We compared our results to those found by multiple image-to-map registrations.