Table 1.
Different choices of feature F to construct the covariance descriptor.
| Feature VectorF | |
|---|---|
| F1(6 × 6) | [y x uυuxuy ] |
| F2(6 × 6) | [yxuυ υxυy ] |
| F3(8 × 8) | [y xuυuxuyυxυy ] |
| F4(12 × 12) | [y xuυuxuyυxυyuxxuyyυxxυyy ] |
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.