Number of the records: 1
Quality Improvement of Multispectral Images for Ancient Document Analysis
- 1.
SYSNO ASEP 0349637 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Quality Improvement of Multispectral Images for Ancient Document Analysis Author(s) Bianco, G. (IT)
Bruno, F. (IT)
Salerno, E. (IT)
Tonazzini, A. (IT)
Zitová, Barbara (UTIA-B) RID, ORCID
Šroubek, Filip (UTIA-B) RID, ORCIDNumber of authors 6 Source Title EUROMED 2010, 3rd International Conference dedicated on Digital Heritage. - Budapest : ARCHAEOLINGUA, 2010 / Ioannides M. ; Fellner D. ; Georgopoulos A. ; Hadjimitsis D. - ISBN 978-963-9911-16-1 Pages s. 29-34 Number of pages 6 s. Action 3rd International Conference dedicated on Digital Heritage Event date 08.11.2010-13.11.2010 VEvent location Limasol Country CY - Cyprus Event type WRD Language eng - English Country HU - Hungary Keywords document analysis ; deblurring ; image registration ; multispectral imaging ; blind source deconvolution Subject RIV JD - Computer Applications, Robotics R&D Projects 1M0572 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA102/08/1593 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10750506 - UTIA-B (2005-2011) Annotation In this paper we will present a methodology to preliminarily register multispectral images od ancient documents in order to correct geometrical misalignments, and apply deblurring techniques to improve image quality for further document analysis, where sharper images are needed. Deblurring is performed with a multichannel approach, adapted to the case of multispectral acquisition. Statistical techniques of decorrelation are applied to improve the legibility of documents or to restore degraded features, extract individual context parts of the document, separate patterns as the main text from the background, or attenuate interferences due to the seeping of ink from verso-to-recto. Workplace Institute of Information Theory and Automation Contact Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201. Year of Publishing 2011
Number of the records: 1