A local spectral inversion of a linearized TV model for denoising and deblurring.
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- Record sourced from PubMed, PMID 18237955.
- Also identified by DOI 10.1109/TIP.2003.812760.
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Abstract
In this paper, we propose a model for denoising and deblurring consisting of a system of linear partial differential equations with locally constant coefficients, obtained as a local linearization of the total variation models. The keypoint of our model is to get the local inversion of the Laplacian operator, which will be done via the Fast Fourier Transform (FFT). Two local schemes will be developed: a pointwise and a piecewise one. We will analyze both, their advantages and their limitations.