Change Detection Using RADARSAT-1 Interferometry: Mine Site Monitoring
Abstract
This study examines the potential of using satellite repeat-pass interferometry for wide-area surveillance and change detection. Several RADARSAT-1 interferometric datasets were acquired in 2003 over active mines in South Australia and Saskatchewan, Canada. Three-colour ROB images derived from the various image magnitudes supplements and complements the interferometric coherence information for detecting even subtle scene changes. Together they were found to be a potentially valuable tool for wide area surveillance and long term site monitoring, providing potentially important contextual information. The limited resolution of RADARSAT-t did not permit conclusive assessment of changes detectable in the mine complex itself, and the lack of ground truth did not permit accurate terrain height estimation. The absence of ring-like phase patterns that characterize decimetre-level terrain subsidence implies that terrain subsidence was not present within the scene.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2004
- Accession Number
- ADA430740
Entities
People
- Karim E. Mattar
Organizations
- Defence Research and Development Canada