Non linear temporal textures synthesis: a monte carlo approach

Authors:
Andrea Masiero;Alessandro Chiuso
Affiliations:
Department of Information Engineering, University of Padova, Padova, Italy;Department of Information Engineering, University of Padova, Padova, Italy
Venue:
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part II
Year:
2006

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Abstract

In this paper we consider the problem of temporal texture modeling and synthesis. A temporal texture (or dynamic texture) is seen as the output of a dynamical system driven by white noise. Experimental evidence shows that linear models such as those introduced in earlier work are sometimes inadequate to fully describe the time evolution of the dynamic scene. Extending upon recent work which is available in the literature, we tackle the synthesis using non-linear dynamical models. The non-linear model is never given explicitly but rather we describe a methodology to generate samples from the model. The method requires estimating the “state” distribution and a linear dynamical model from the original clip which are then used respectively as target distribution and proposal mechanism in a rejection sampling step. We also report extensive experimental results comparing the proposed approach with the results obtained using linear models (Doretto et al.) and the “closed-loop” approach presented at ECCV 2004 by Yuan et al.