Modeling of two-dimensional covariance functions with application to image restoration
S. Powell, Leonard M. Silverman · IEEE Transactions on Automatic Control · 1974
Exact models are derived for the horizontal line scan of monochromatic pictorial images whose light intensity at each point can be represented by a class of two-dimensional homogeneous random fields. Recursive restoration schemes are presented for images of this type whose degradation can be represented by additive white noise.