Title :
The ratio of the arithmetic to the geometric mean: a first-order statistical test for multilook SAR image homogeneity
Author :
Beauchemin, Mario ; Thomson, Keith P B ; Edwards, Geoffrey
Author_Institution :
Centre de Recherche en Geomatique, Laval Univ., Que., Canada
fDate :
3/1/1996 12:00:00 AM
Abstract :
The ratio of the arithmetic to the geometric mean is introduced as a general index to test SAR image homogeneity. Application to a multilook airborne SAR image shows that this first-order statistical measure compares advantageously and in some typical cases outperforms the coefficient of variation for the detection of random and structural heterogeneity
Keywords :
geophysical signal processing; geophysical techniques; radar applications; radar imaging; remote sensing by radar; synthetic aperture radar; airborne SAR; arithmetic; first-order statistical test; general index; geometric mean; geophysical measurement technique; land surface; multilook SAR image homogeneity; radar imaging; radar remote sensing; random heterogeneity; structural heterogeneity; synthetic aperture radar; terrain mapping; Arithmetic; Fading; Heart; Image analysis; Image recognition; Image segmentation; Layout; Rayleigh channels; Speckle; Testing;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
