Sparsity and “Something Else”: An Approach to Encrypted Image Folding

James Bowley, Laura Rebollo-neira

Research output: Contribution to journalArticle

Abstract

A property of sparse representations in relation to their capacity for information storage is discussed. It is shown that this feature can be used for an application that we term Encrypted Image Folding. The proposed procedure is realizable through any suitable transformation. In particular, in this paper we illustrate the approach by recourse to the Discrete Cosine Transform and a combination of redundant Cosine and Dirac dictionaries. The main advantage of the proposed technique is that both storage and encryption can be achieved simultaneously using simple processing steps.
Original languageEnglish
Article number5688290
Pages (from-to)189-192
Number of pages4
JournalIEEE Signal Processing Letters
Volume18
Issue number3
DOIs
Publication statusPublished - 17 Jan 2011

Fingerprint

Discrete cosine transforms
Glossaries
Folding
Sparsity
Cryptography
Data storage equipment
Discrete Cosine Transform
Sparse Representation
Processing
Encryption
Paul Adrien Maurice Dirac
Term
Dictionary

Bibliographical note

© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

  • cryptography
  • dictionaries
  • discrete cosine transforms
  • phase shift keying
  • recurrent neural networks
  • encrypted image folding
  • mixed dictionaries
  • sparse representations

Cite this

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Sparsity and “Something Else”: An Approach to Encrypted Image Folding. / Bowley, James; Rebollo-neira, Laura.

In: IEEE Signal Processing Letters, Vol. 18, No. 3, 5688290, 17.01.2011, p. 189-192.

Research output: Contribution to journalArticle

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