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.
Global and local SPF function sign and result comparison. (a) Initial contour; (b) global SPF function; (c) segmentation result with active contour method using global SPF function; (d) local SPF function; (e) segmentation result with active contour method using local SPF function.
