Detection

Ship detection

Using synthetic aperture radar data (which is available wet or fine, day or night), ship presence, ship size, direction of travel, and an estimate of speed can be made.
These data are useful for search and rescue, surveillance, and monitoring round-the-world races.

Edge detection

Automated detection and extraction of edges, or boundaries, in an image can make map-updating faster and more cost effective. Here, clearfell areas are mapped for exotic forest inventory.
Image is 2 x 2 km.
Aerial photography by Air Logistics. Sample of edge detection work courtesy of Fletcher Challenge Forests.

Change detection