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- W2088946548 abstract "This paper describes a modified version of classical regularization techniques. Instead of using regularization in order to reduce the measurement noise effect of cancelling the inverse filter singularities, and to restore the original signal, a prefiltering is performed before the regularization. This prefiltering is obtained by using a Wiener filter based on a particular modelization of the signal to be restored. This new procedure is illustrated by the restoration of the Hubble Space Telescope (HST) images. Dieser Beitrag stellt eine modifizierte Version von klassischen Regularisierungstechniken vor. Regularisierung wird nicht zur Reduktion von Meßrauschen durch Entfernen der Singularitäten des inversen Filters durchgeführt und um das ursprüngliche Signal wiederherzustellen; stattdessen wird eine Vorfilterung vor der Regularisierung durchgeführt. Diese Vorfilterung wird mittels eines Wienerfilters, welches auf einer speziellen Modellierung des wiederherzustellenden Signals basiert, bewerkstelligt. Unser neues Verfahren wird durch die Restoration von Bildern des Hubble Teleskopes (HST) illustriert. Cet article décrit une version modifiée des techniques classiques de régularisation. Au lieu d'utiliser la régularisation afin de réduire l'effet du bruit de mesure en annulant les singularités des filtres inverses et de restaurer le signal original, un préfiltrage est opéré avant la régularisation. Ce préfiltrage est obtenu en utilisant un filtre de Wiener basé sur une modélisation particulière du signal à restaurer. Cette nouvelle procédure est illustrée par la restauration des images du télescope spatial Hubble." @default.
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- W2088946548 title "A deconvolution technique using optimal Wiener filtering and regularization" @default.
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- W2088946548 doi "https://doi.org/10.1016/s0165-1684(98)00161-3" @default.
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