Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Example of composite aerial view using Scheme 0 (top) and Scheme 2 (bottom). Notice how multiple versions of the same stripe features appear using Scheme 0, which makes the image difficult to intrepret. Scheme 2 results in an aerial view that is much better stitched.
