Background covariance matrix

Background error covariance

background error covariance matrix

covariance matrix of background errors

Background field and Background value

Academic background

accountant in the background of computer age

adapative background subtraction

adaptive background adjusting

adaptive background mixture models

Adaptive Background Model

Adaptive background modeling

Adaptive Background Subtraction

Adaptive Background Suppression

adaptive background update

Adaptive Background Update Rate

adaptive background updating

Adaptive Background-Division

Agricultural geological background

Agriculture geologic background