Results 21 to 30 of about 245,521 (284)

Efficient Reversible Data Hiding Scheme for AMBTC-Compressed Images

open access: yesApplied Sciences, 2021
Reversible data hiding has attracted significant attention from researchers because it can extract an embedded secret message correctly and recover a cover image without distortion.
Chia-Chen Lin   +3 more
doaj   +1 more source

Elementary gates for quantum computation [PDF]

open access: yes, 1995
We show that a set of gates that consists of all one-bit quantum gates (U(2)) and the two-bit exclusive-or gate (that maps Boolean values $(x,y)$ to $(x,x \oplus y)$) is universal in the sense that all unitary operations on arbitrarily many bits $n$ (U ...
A. C. C. Yao   +33 more
core   +10 more sources

Reversible Data Hiding in Encrypted DICOM Images Using Cyclic Binary Golay (23, 12) Code

open access: yesIEEE Access, 2021
In this paper, a novel reversible data hiding method for encrypted images (RDHEI) is proposed. An efficient coding scheme based on cyclic binary Golay (23, 12) code is designed to embed additional data into the least significant bits (LSBs) of the ...
Mariusz Dzwonkowski, Roman Rykaczewski
doaj   +1 more source

Decoding Cyclic Codes up to a New Bound on the Minimum Distance [PDF]

open access: yes, 2012
A new lower bound on the minimum distance of q-ary cyclic codes is proposed. This bound improves upon the Bose-Chaudhuri-Hocquenghem (BCH) bound and, for some codes, upon the Hartmann-Tzeng (HT) bound. Several Boston bounds are special cases of our bound.
Bezzateev, Sergey   +2 more
core   +2 more sources

Self dual, reversible and complementary duals constacyclic codes over finite local Frobenius non-chain rings of length 5 and nilpotency index 4.

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
Over finite local Frobenius non-chain rings of length 5 and nilpotency index 4 and when the length of the code is relatively prime to the characteristic of the residue field of the ring, the structure of the dual of γ-constacyclic codes is established ...
Castillo-Guillén C. A.   +1 more
doaj   +1 more source

Information-theoretic approach to quantum error correction and reversible measurement [PDF]

open access: yes, 1997
Quantum operations provide a general description of the state changes allowed by quantum mechanics. The reversal of quantum operations is important for quantum error-correcting codes, teleportation, and reversing quantum measurements.
Benjamin Schumacher   +4 more
core   +4 more sources

Reverse–Complement Similarity Codes

open access: yesElectronic Notes in Discrete Mathematics, 2005
Abstract We discuss a general notion of similarity function between two sequences which is based on their common subsequences. This notion arises in some applications of molecular biology [A.G. D'yachkov, P.L. Erdos, A.J. Macula, V.V. Rykov, D.C. Torney, C.-S. Tung, P.A. Vilenkin, and P.S.
A. D’yachkov   +3 more
openaire   +1 more source

Optimal structural similarity constraint for reversible data hiding

open access: yes网络与信息安全学报, 2016
Most reversible data hiding (RDH) techniques have been evaluated by PSNR,which is based on MSE.Unfortunately,MSE turns out to be an extremely poor measure when the purpose is to predict perceived signal fidel-ity or quality.The structural similarity ...
Jia-jia XU   +4 more
doaj   +3 more sources

Reversible Self-Dual Codes over Finite Field

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi
Reversible self-dual code is a linear code which combine the properties from self-dual code and reversible code. Previous research shows that reversible self-dual codes have only been developed over field of order 2 and order 4.
Ardi Nur Hidayat   +2 more
doaj   +1 more source

On Reversibility and Self-Duality for Some Classes of Quasi-Cyclic Codes

open access: yesIEEE Access, 2020
In this work, we study two classes of quasi-cyclic (QC) codes and examine how several properties can be combined into the codes of these classes. We start with the class of QC codes generated by diagonal generator polynomial matrices; a QC code in this ...
Ramy Taki Eldin, Hajime Matsui
doaj   +1 more source

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