Raman Binary Mapping of Iron Age Ostracon in an Unknown Material Composition and High-Fluorescence Setting—A Proof of Concept


Journal Article

© 2018 University of Oxford The textual evidence from ancient Judah is mainly limited to ostraca, ink-on-clay inscriptions. Their facsimiles (binary depictions) are indispensable for further analysis. Previous attempts at mechanizing the creation of facsimiles have been problematic. Here, we present a proof of concept of objective binary image acquisition, via Raman mapping. Our method is based on a new peak detection transform, handling the challenging fluorescence of the clay, and circumventing preparatory ink composition analysis. A sequence of binary mappings (signifying the peaks) is created for each wavelength; their legibility reflects the prominence of Raman lines. Applied to a biblical-period ostracon, the method exhibits high statistical significance.

Full Text

Duke Authors

Cited Authors

  • Shaus, A; Sober, B; Tzang, O; Ioffe, Z; Cheshnovsky, O; Finkelstein, I; Piasetzky, E

Published Date

  • April 1, 2019

Published In

Volume / Issue

  • 61 / 2

Start / End Page

  • 459 - 469

Electronic International Standard Serial Number (EISSN)

  • 1475-4754

International Standard Serial Number (ISSN)

  • 0003-813X

Digital Object Identifier (DOI)

  • 10.1111/arcm.12419

Citation Source

  • Scopus