Title :
Simulation of image time series from dynamical fractional brownian fields
Author :
Atto, Abdourrahmane M. ; Fillatre, Lionel ; Antonini, Marc ; Nikiforov, Igor
Author_Institution :
LISTIC, Univ. of Savoy, Annecy-le-Vieux, France
Abstract :
The paper addresses random field time series analysis and simulation. The analysis constrains a spatial isotropic fractional Brownian field to a dynamic temporal behavior from separable time varying Hurst parameters. The constrained dynamic applies by embedding the wavelet packet spectrum of the input random field into different spectra associated with the same random family (exponential spectrum decay). The paper highlights the relevance of the approach for representing and simulating isotropic light source and cloud dynamics.
Keywords :
image processing; time series; wavelet transforms; cloud dynamics; dynamic temporal behavior; dynamical fractional Brownian fields; exponential spectrum decay; image time series simulation; isotropic light source; random field time series analysis; spatial isotropic fractional Brownian field; time varying Hurst parameters; wavelet packet spectrum; Abstracts; Time series analysis; Wavelet domain; Wavelet packets; Dynamic Fractional Brownian Field; Dynamic textures; Image Time Series; Spatio-Temporal Field Simulation; Stochastic fields;
Conference_Titel :
Image Processing (ICIP), 2014 IEEE International Conference on
Conference_Location :
Paris
DOI :
10.1109/ICIP.2014.7026228