Abstract
Iron-gall ink has been widely used ink in the production of documents and artworks since the fifth century C.E. Terahertz imaging is used to read characters written in such ink on stacked sheets of paper. Several contrast mechanisms including maximum/minimum of the reflected terahertz signal, signature frequency, Gaussian mixture model, and short-time Fourier transform are tested to compare the image quality of the buried text. The results show that the short-time Fourier transform mechanism outperforms other contrast mechanism and has the ability to extract clear images of buried text within paper stacks.
Original language | English |
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Title of host publication | IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage 2023 |
Publisher | International Measurement Confederation (IMEKO) |
Pages | 564-569 |
Number of pages | 6 |
ISBN (Electronic) | 9781713888345 |
DOIs | |
State | Published - 2023 |
Event | 2023 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage - Rome, Italy Duration: 19 Oct 2023 → 21 Oct 2023 |
Publication series
Name | IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage 2023 |
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Conference
Conference | 2023 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage |
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Country/Territory | Italy |
City | Rome |
Period | 19/10/23 → 21/10/23 |
Bibliographical note
Publisher Copyright:© 2023 IMEKO TC TC4. All rights reserved.