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DESIGN OF HIGH SPEED STEGOSYSTEM BASED ON TRELLIS CODES JOINTLY WITH GENERALISED VITERBI ALGORITHM.

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Title: DESIGN OF HIGH SPEED STEGOSYSTEM BASED ON TRELLIS CODES JOINTLY WITH GENERALISED VITERBI ALGORITHM.
Authors: KORZHIK, VALERY1 val-korzhik@yandex.ru, MORALES-LUNA, GUILLERMO2 gmorales@cs.cinvestav.mx, FEDYANIN, IVAN1 ivan.a.fedyanin@gmail.com
Source: International Journal of Computer Science & Applications. Jun2016, Vol. 13 Issue 2, p1-15. 15p.
Subjects: Trellis-coded modulation, Embedded computer systems, Viterbi decoding
Abstract: One of the most promising direction in the design of high speed stegosystem was project HUGO based on the use of trellis codes (TC) and Viterbi Algorithm(VA) in the embedding procedure. However the optimality of VA was kept still unclear because a generic purpose of VA is to correct errors. We prove that optimality of embedding can be achieved with the use of generalised Viterbi algorithm (GVA) proposed by one of the authors of this paper about 30 years ago. Optimisation of the trellis code check matrix based on the use of GVA is also considered. The second goal of the current paper is to consider to use TC jointly with GVA in order to provide both security of a stegosystem and simultaneously their ability to correct errors which can be induced by an attacker in order to remove embedded information even in the case if the attacker is unable to detect a presence of hidden information (blind attack). We consider also a trade off between security and error correction. Experimental results show that it is possible to build a stegosystem with acceptable error-correction capabilities together with minimization of the embedding impact. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Computer Science & Applications is the property of Technomathematics Research Foundation and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: DESIGN OF HIGH SPEED STEGOSYSTEM BASED ON TRELLIS CODES JOINTLY WITH GENERALISED VITERBI ALGORITHM.
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  Data: <searchLink fieldCode="AR" term="%22KORZHIK%2C+VALERY%22">KORZHIK, VALERY</searchLink><relatesTo>1</relatesTo><i> val-korzhik@yandex.ru</i><br /><searchLink fieldCode="AR" term="%22MORALES-LUNA%2C+GUILLERMO%22">MORALES-LUNA, GUILLERMO</searchLink><relatesTo>2</relatesTo><i> gmorales@cs.cinvestav.mx</i><br /><searchLink fieldCode="AR" term="%22FEDYANIN%2C+IVAN%22">FEDYANIN, IVAN</searchLink><relatesTo>1</relatesTo><i> ivan.a.fedyanin@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Computer+Science+%26+Applications%22">International Journal of Computer Science & Applications</searchLink>. Jun2016, Vol. 13 Issue 2, p1-15. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Trellis-coded+modulation%22">Trellis-coded modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Embedded+computer+systems%22">Embedded computer systems</searchLink><br /><searchLink fieldCode="DE" term="%22Viterbi+decoding%22">Viterbi decoding</searchLink>
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  Data: One of the most promising direction in the design of high speed stegosystem was project HUGO based on the use of trellis codes (TC) and Viterbi Algorithm(VA) in the embedding procedure. However the optimality of VA was kept still unclear because a generic purpose of VA is to correct errors. We prove that optimality of embedding can be achieved with the use of generalised Viterbi algorithm (GVA) proposed by one of the authors of this paper about 30 years ago. Optimisation of the trellis code check matrix based on the use of GVA is also considered. The second goal of the current paper is to consider to use TC jointly with GVA in order to provide both security of a stegosystem and simultaneously their ability to correct errors which can be induced by an attacker in order to remove embedded information even in the case if the attacker is unable to detect a presence of hidden information (blind attack). We consider also a trade off between security and error correction. Experimental results show that it is possible to build a stegosystem with acceptable error-correction capabilities together with minimization of the embedding impact. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Computer Science & Applications is the property of Technomathematics Research Foundation and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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      – SubjectFull: Trellis-coded modulation
        Type: general
      – SubjectFull: Embedded computer systems
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      – SubjectFull: Viterbi decoding
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      – TitleFull: DESIGN OF HIGH SPEED STEGOSYSTEM BASED ON TRELLIS CODES JOINTLY WITH GENERALISED VITERBI ALGORITHM.
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              M: 06
              Text: Jun2016
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