Istituto di Scienza e Tecnologie dell'Informazione     
Tonazzini A., Bianco G., Salerno E. Registration and enhancement of double-sided degraded manuscripts acquired in multispectral modality. In: ICDAR 2009 - 10th International Conference on Document Analysis and Recognition (Barcelona, Spagna, 26-29 luglio 2009). Proceedings, pp. 546 - 550. Oriol Ramos, Dimosthenis Karatzas (eds.). IEEE Computer Society, 2009.
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 co-registration, and this is difficult for recto-verso pairs since the relevant information is often very sparse.
URL: http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=5277472&isYear=2009&count=288&page=4&ResultStart=100
DOI: 10.1109/ICDAR.2009.131
Subject Image enhancement
Image registration
Ancient documents
I.4.3 Enhancement. Registration
I.4.4 Restoration

Icona documento 1) Download Document PDF

Icona documento Open access Icona documento Restricted Icona documento Private


Per ulteriori informazioni, contattare: Librarian http://puma.isti.cnr.it

Valid HTML 4.0 Transitional