Title :
Localisation of Geometric Anisotropy
Author :
Olhede, Sofia C.
Author_Institution :
Univ. Coll. London, London
fDate :
5/1/2008 12:00:00 AM
Abstract :
The class of 2-D nonseparable geometrically anisotropic localization operators is defined, from the representation of a function via a family of coherent states, by restricting the states in the reconstruction formula. The eigensystem of operators in a set family is determined, this specifying optimally localized anisotropic functions, and their degree of localization. These functions are suitable for analysis of inhomogeneous anisotropic random fields.
Keywords :
eigenvalues and eigenfunctions; geometry; mathematical operators; 2D nonseparable geometrically anisotropic localization operators; geometric anisotropy; inhomogeneous anisotropic random fields; localisation; operators eigensystem; optimally localized anisotropic functions; reconstruction formula; Localization operator; time-frequency analysis; wavelet transform;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2007.912894