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ICDAR
2009
IEEE

Registration and Enhancement of Double-Sided Degraded Manuscripts Acquired in Multispectral Modality

10 years 11 months ago
Registration and Enhancement of Double-Sided Degraded Manuscripts Acquired in Multispectral Modality
We propose a system to process multispectral scans of double-sided documents. It can co-register any number of recto and verso channel maps, and reduce the bleed-through/show-through distortions by exploiting blind source separation. From RGB scans, it is also able to recover the original colors, thus improving the readability of a document while maintaining its original appearance. The recto and verso patterns obtained can then be further analyzed. Many approaches to this problem are based on single-channel or multichannel recto-verso scans. In any case, getting rid of the unwanted interferences is a challenging problem. All the methods relying on pixel intensities, such as the one presented here, need a very accurate coregistration, and this is difficult for recto-verso pairs since the relevant information is often very sparse.
Anna Tonazzini, Gianfranco Bianco, Emanuele Salern
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Where ICDAR
Authors Anna Tonazzini, Gianfranco Bianco, Emanuele Salerno
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