Figure 3.
A slice of 3D GCM of PET. (a) Original image, (b) gradient magnitude map, (c) gradient phase map, (d) GCM (Δρ = 1/16, Δφ = π/8, Δθ = π/8, and Th = 0.16).
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.