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The Poisson equation for image texture modelling
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DOI：10.1016/S0167-8655(02)00396-3.png)
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The Poisson equation is a class of partial differential equations which describe a steady-state temperature distribution in a bounded object. This paper applies this equation to the modelling of image textures by constructing specific heat source functions and boundary conditions. The heat source function can be considered as an image transform function such that a set of texture features at different frequencies and orientations can be extracted from the transformed image, in conjunction with using a Gabor wavelet filer bank. Better performance of image texture retrieval by these features is achieved than using the features extracted directly from the original image texture. (C) 2002 Elsevier Science B.V. All rights reserved.
Keyword:
Poisson equation
image texture modelling
texture synthesis
image retrieval
heat source function
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