Mr. Jeff Breidenbach Profile

Jeff Breidenbach

Principal at Argus LLC

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Proceedings Article | 22 June 2004 Paper

Collocated Dataglyphs for large-message storage and retrieval

Rakhi Motwani, Jeff Breidenbach, John Black

Proceedings Volume 5306, (2004) https://doi.org/10.1117/12.527150

KEYWORDS: Computer programming, Printing, Binary data, Data modeling, Error control coding, Visualization, Image compression, Forward error correction, Remote sensing, Computer security

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In contrast to the security and integrity of electronic files, printed documents are vulnerable to damage and forgery due to their physical nature. Researchers at Palo Alto Research Center utilize DataGlyph technology to render digital characteristics to printed documents, which provides them with the facility of tamper-proof authentication and damage resistance. This DataGlyph document is known as GlyphSeal. Limited DataGlyph carrying capacity per printed page restricted the application of this technology to a domain of graphically simple and small-sized single-paged documents. In this paper the authors design a protocol motivated by techniques from the networking domain and back-up strategies, which extends the GlyphSeal technology to larger-sized, graphically complex, multi-page documents. This protocol provides fragmentation, sequencing and data loss recovery. The Collocated DataGlyph Protocol renders large glyph messages onto multiple printed pages and recovers the glyph data from rescanned versions of the multi-page documents, even when pages are missing, reordered or damaged. The novelty of this protocol is the application of ideas from RAID to the domain of DataGlyphs. The current revision of this protocol is capable of generating at most 255 pages, if page recovery is desired and does not provide enough data density to store highly detailed images in a reasonable amount of page space.

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