Computer imaging techniques are commonly used to preserve and share readable manuscripts, but capturing writing locked away in ancient, deteriorated documents poses an entirely different challenge. This software pipeline—referred to as “virtual unwrapping”—allows textual artifacts to be read completely and noninvasively. The systematic digital analysis of the extremely fragile En-Gedi scroll (the oldest Pentateuchal scroll in Hebrew outside of the Dead Sea Scrolls) reveals the writing hidden on its untouchable, disintegrating sheets. Our approach for recovering substantial ink-based text from a damaged object results in readable columns at such high quality that serious critical textual analysis can occur. Hence, this work creates a new pathway for subsequent textual discoveries buried within the confines of damaged materials.
Digital Object Identifier (DOI)
W.B.S. acknowledges funding from the NSF (awards IIS-0535003 and IIS-1422039).
W.B.S. acknowledges funding from Google and support from S. Crossan (Founding Director of the Google Cultural Institute).
All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors. All scan data and results from this paper are archived at the Department of Computer Science, University of Kentucky (Lexington, KY) and are available at http://vis.uky.edu/virtual-unwrapping/engedi2016/.
Supplementary material for this article is available at http://advances.sciencemag.org/cgi/content/full/2/9/e1601247/DC1
Seales, W. Brent; Parker, Clifford S.; Segal, Michael; Tov, Emanuel; Shor, Pnina; and Porath, Yosef, "From Damage to Discovery Via Virtual Unwrapping: Reading the Scroll from En-Gedi" (2016). Computer Science Faculty Publications. 11.
Fig. 1 The charred scroll from En-Gedi.
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Fig. 2 Completed virtual unwrapping for the En-Gedi scroll.
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Fig. 3 Segmentation challenges in the En-Gedi scroll, based on examples in the slice view.
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Fig. 4 A portion of the segmented surface and how it intersects the volume.
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Fig. 5 The importance of accurate surface localization on the final generated texture.
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Fig. 6 The geometric parameters for directional texturing.
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Fig. 7 The effect of directional texturing to improve ink response.
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Fig. 8 Demonstration of stored provenance chain.
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Fig. 9 Partial transcription and translation of recovered text.
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Fig. 10 Timeline placing the En-Gedi scroll within the context of other biblical discoveries.
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table S1. Radiocarbon dating results of the En-Gedi scroll (25).