An official website of the United States government
Here's how you know
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.
Images demonstrating segmentation due to: A) core method, B) core method with the addition of the grayscale erosion and rolling ball filters, and C) complete method. Note the anterior right lung region present in A and C, but lost in B due to the rolling ball (ovals).