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.
Diagram of a 2-level decomposition: (A) original MR brain image; (B) one-level decomposition subband; (C) two-level decomposition subband; (D) Wavelet entropy (WE) vector. (B,C) are in wavelet coefficient domain. L, low-frequency subband; H, high-frequency subband; digits after L/H represents the decomposition level, E, entropy; WE, wavelet entropy.
