http://www.cnr.it/ontology/cnr/individuo/prodotto/ID217220

Restoration of historical RGB manuscripts via correlated component analysis. (Contributo in atti di convegno)

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Restoration of historical RGB manuscripts via correlated component analysis. (Contributo in atti di convegno) (literal)

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Bedini L., Tonazzini A. (2012)
Restoration of historical RGB manuscripts via correlated component analysis.
in 5th International Congress on "Science and Technology for the Safeguard of Cultural Heritage in the Mediterranean Basin", Istanbul, Turkey, 22-25 November 2011
(literal)

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Progetto: Multispectral acquisition, enhancement, indexing and retrieval of artworks Acronimo: AMMIRA Tipo Progetto: NC (literal)

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Titolo

Restoration of historical RGB manuscripts via correlated component analysis. (literal)

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Abstract

In this paper, we consider the problem of removing interferences from pairs of recto-verso RGB documents affected by the see-through effect, due to either transparency or seeping of ink from the reverse side of the page. We formulate the problem as one of separating two individual texts, overlapped in the maps of the colour channels through an unknown linear mixing operator, and exploit statistical techniques of blind source separation. We show that recently proposed Correlated Component Analysis techniques overcome the already satisfactory performance of Independent Component Analysis techniques and colour decorrelation, when the two texts are even sensibly correlated. (literal)

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