Generalized Method for Sampling Spatially Correlated Heterogeneous Speckled Imagery.

Autor: Bustos, Oscar H., Flesia, Ana G., Frery, Alejandro C.
Předmět:
Zdroj: EURASIP Journal on Applied Signal Processing; Jan2001, Vol. 2001 Issue 2, p89-99, 11p, 7 Black and White Photographs, 1 Chart, 2 Graphs
Abstrakt: This paper presents a general result for the simulation of correlated heterogeneous targets, which are present in images corrupted by speckle noise. This technique is based on the use of a correlation mask and Gaussian random variables, in order to obtain spatially dependent Gamma deviates. These Gamma random variables, in turn, allow the obtainment of correlated K deviates with specified correlation structure. The theoretical properties of the procedure are presented, along with the corresponding algorithm. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index