A Remarkable Tornado Photo

"The Lede: A Remarkable Tornado Photo"

An Iowa woman snaps a stunning close-up of a looming funnel cloud.

Kalman filters

Consider these for noise rejection, especially when moving to continuous-time data.

Link: tricks/techniques to accelerate normalized cross-correlation for image analysis

http://www.cs.ubc.ca/research/deaton/remarks_ncc.html