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.
Small amplitude motion is calculated by comparing strips of data between consecutive frames. This works well when the motion between frames is small (such as between frame Fr and Fn. However, this fails when the between frame motion is large (such as between frame Fr and frame Fn + 1).
