Conf Proc IEEE Eng Med Biol Soc. 2011;2011:8195-8.

Lossless watermarking of categorical attributes for verifying medical data base integrity.

Coatrieux G, Chazard E, Beuscart R, Roux C.

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Institut Telecom, TelecomBretagne; Unite INSERM 650 Latim, Technopole Brest-Iroise, CS 83818,29238 Brest Cedex 3, France. gouenou.coatrieux@telecom-bretagne.eu

Abstract

In this article, we propose a new lossless or reversible watermarking approach that allows the embedding of a message within categorical data of relational database. The reversibility property of our scheme is achieved by adapting the well known histogram shifting modulation. Based on this algorithm we derive a system for verifying the integrity of the database content, it means detecting addition, removal or modification of any t-uples or attributes. Such a content integrity check is independent of the manner the database is stored or structured. We illustrate the overall capability of our method and its constraints of deployment considering one medical database of inpatient hospital stay records. Especially, we reversibly watermark ICD-10 diagnostic codes.

PMID:: 22256244; [PubMed - indexed for MEDLINE]

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Lossless watermarking of categorical attributes for verifying medical data base integrity.

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