IEEE Trans Image Process - Example-driven manifold priors for image deconvolution.

Tópicos

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Resumo

Image restoration methods that exploit prior information about images to be estimated have been extensively studied, typically using the Bayesian framework. In this paper, we consider the role of prior knowledge of the object class in the form of a patch manifold to address the deconvolution problem. Specifically, we incorporate unlabeled image data of the object class, say natural images, in the form of a patch-manifold prior for the object class. The manifold prior is implicitly estimated from the given unlabeled data. We show how the patch-manifold prior effectively exploits the available sample class data for regularizing the deblurring problem. Furthermore, we derive a generalized cross-validation (GCV) function to automatically determine the regularization parameter at each iteration without explicitly knowing the noise variance. Extensive experiments show that this method performs better than many competitive image deconvolution methods.

Resumo Limpo

imag restor method exploit prior inform imag estim extens studi typic use bayesian framework paper consid role prior knowledg object class form patch manifold address deconvolut problem specif incorpor unlabel imag data object class say natur imag form patchmanifold prior object class manifold prior implicit estim given unlabel data show patchmanifold prior effect exploit avail sampl class data regular deblur problem furthermor deriv general crossvalid gcv function automat determin regular paramet iter without explicit know nois varianc extens experi show method perform better mani competit imag deconvolut method

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