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Title of Journal: J Med Syst

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Abbravation: Journal of Medical Systems

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Springer US

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DOI

10.1006/ndsh.1994.1026

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1573-689X

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A secure steganography for privacy protection in h

Authors: Jing Liu Guangming Tang Yifeng Sun
Publish Date: 2013/01/15
Volume: 37, Issue: 2, Pages: 9918-
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Abstract

Private data in healthcare system require confidentiality protection while transmitting Steganography is the art of concealing data into a cover media for conveying messages confidentially In this paper we propose a steganographic method which can provide private data in medical system with very secure protection In our method a cover image is first mapped into a 1D pixels sequence by Hilbert filling curve and then divided into nonoverlapping embedding units with three consecutive pixels We use adaptive pixel pair match APPM method to embed digits in the pixel value differences PVD of the three pixels and the base of embedded digits is dependent on the differences among the three pixels By solving an optimization problem minimal distortion of the pixel ternaries caused by data embedding can be obtained The experimental results show our method is more suitable to privacy protection of healthcare system than prior steganographic worksThis work is partially supported by National Natural Science Foundation of China under the grant number 61101112 and Postdoctoral Science Foundation of China under the grant number 2011M500775 The authors would like to thank Prof Hong at Yu Da University Taiwan for providing us the source code in 10

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