Reading closed historical manuscripts using dual-source dual-energy X-Ray tomography
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F18%3A00485987" target="_blank" >RIV/68378297:_____/18:00485987 - isvavai.cz</a>
Result on the web
<a href="http://www.ndt.net/?id=21947" target="_blank" >http://www.ndt.net/?id=21947</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Reading closed historical manuscripts using dual-source dual-energy X-Ray tomography
Original language description
In this paper, we employ dual-source dual-energy X-ray micro-tomography (DS/DECT) as a tool for historical handwritten documents reading. The aim to digitize historical documents with progressed degradation faces the question how to read the text and illuminations in manuscripts while preserving them in their original form. Using of standard optical methods may cause irreversible mechanical damage, such as tearing during opening and separation of individual sheets. X-ray computed tomography allows to get page-by-page information non-invasively, as the standard writing and drawing ink used in Europe from about the 5th century to the 19th century usually contained heavy elements (iron) and thus produce sufficient X-ray attenuation contrast. Results of a standard cone beam X-ray tomography are affected by (often very distinctive) structure of used paper. This structure reduces the contrast to such an extent that the places where less amount of the ink (thin lines) or the ink with a lower content of iron was used are masked by the paper structure and might be illegible. These problems can be successfully resolved utilizing the dual-energy computed tomography method typically used for the material decomposition of complex objects. Proposed methodology improves contrast of the written structures and illuminations, while paper structure is significantly suppressed in the images.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/LO1219" target="_blank" >LO1219: Sustainable advanced development of CET</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
iCT conference 2018. 8th Conference on Industrial Computed Tomography, Wels, Austria (iCT 2018)
ISBN
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ISSN
1435-4934
e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
NDT.net
Place of publication
Bad Breisig
Event location
Wels
Event date
Feb 6, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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