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.
Quantitative image quality metrics.
| Quantitative Metric | Abbreviation | Citation |
|---|---|---|
| Signal-to-noise ratio | SNR | Magnotta and Friedman, 2006 |
| Contrast-to-noise ratio | CNR | Magnotta and Friedman, 2006 |
| Foreground-to-background energy ratio | FBER | NA |
| Quality index 1 | Qi1 | Mortamet et al., 2009 |
| Image smoothness | FWHM | Friedman et al., 2006 |
| Entropy focus criterion | EFC | Atkinson et al., 1997 |
| Euler number | Euler | Dale et al., 1999 |
