where w(x, y, z) represents the additive Gaussian noise. The background term is
omitted because it can be estimated and then removed. For the Poisson noise
model, the background term cannot be incorporated in a term that is independ-
ent of ( f (x, y, z)
*
h(x, y, z)) and thus must be explicitly defined. As explained
earlier, deconvolution recovers an estimate of fx, y, zðÞfrom gx, y, zðÞ, given
a knowledge of hx, y, zðÞ. The following section describes some of the com-
monly used algorithms for deconvolution.
14.4.3 Algorithms for Deblurring
and Restoration
On the basis of their mode of implementation (2-D or 3-D), deconvolution
algorithms can be broadly divided into two classes, deblurring and image restor-
ation. Algorithms that are applied sequentially ...