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Method for restoration of images which are affected by imperfections, device for implementation of this, and the corresponding applications

Authors: De la Portilla Muelas, Javier; Dorronsoro, Carlos; Guerrero Colón, José Antonio;

Method for restoration of images which are affected by imperfections, device for implementation of this, and the corresponding applications

Abstract

El método para restablecer imágenes obtuvo con los dispositivos imagen-que capturaban, comenzando con la caracterización de retroceder de las imágenes por medio de la función de la dispersión de un punto (PSF) en unas o más posiciones en el plano del objeto, y, opcionalmente, para unas o más posiciones que se enfocaban, también la densidad espectral de la potencia (PSD) del ruido. El método se aplica en dos etapas: (1) pre-filtración del pequeño error cuadrático para la compensación de velar causado por el PSF y eliminación (de 2) del ruido. El bote de la optimización se realice de acuerdo con un modelo del error del método para la eliminación del ruido (2), o, en la ausencia de un modelo, empírico con un filtro, el parámetro libre de el cual se optimiza para un conjunto de pares de original/retrocedió imágenes del entrenamiento, y de las pares (PSF/PSD) de ruido.

Method for restoring images obtained with image-capturing devices, starting with the characterisation of the downgrading of the images by means of the function of dispersion of a point (PSF) at one or more positions on the object plane, and, optionally, for one or more focussing positions, also the power spectral density (PSD) of the noise. The method is applied in two steps: (1) pre-filtering of quadratic minimum error for compensation of the blurring caused by the PSF; and (2) elimination of noise. The optimisation can be carried out in accordance with an error model of the method for elimination of noise (2), or, in the absence of a model, empirically with a filter, the free parameter of which is optimised for a set of pairs of original/downgraded training images, and of pairs (PSF/PSD) of noise.

Fecha de solicitud: 21/02/2008.- Titular: Consejo Superior de Investigaciones Científicas (CSIC)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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