Results 31 to 40 of about 70,200 (300)
Data Validation System Using QR Code and Meaningless Reversible Degradation [PDF]
QR Codes are used as information channel on several cryptographic architectures due to their technical properties, such as data capacity and retrieval reliability.
Freitas, Lucas F. +5 more
core +1 more source
A Family of Reversible BCH Codes
Cyclic codes are an interesting class of linear codes due to their efficient encoding and decoding algorithms as well as their theoretical importance. BCH codes form a subclass of cyclic codes and are very important in both theory and practice as they have good error-correcting capability and are widely used in communication systems, storage devices ...
Shuxing Li, Cunsheng Ding, Hao Liu 0011
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On the code reverse engineering problem [PDF]
— This article deals with the problem of quantifying how many noisy codewords have to be eavesdropped in order to reverse engineer a code. The main result of this paper is a lower bound on this quantity and the proof that this number is logarithmic in the length for LDPC codes.
Cluzeau, Mathieu, Tillich, Jean-Pierre
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Optimal structural similarity constraint for reversible data hiding
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,Wei-ming ZHANG,Rui-qi JIANG,Neng-hai YU,Xiao-cheng HU
doaj +3 more sources
Efficient Reversible Data Hiding Scheme for AMBTC-Compressed Images
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
Reverse–Complement Similarity Codes
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.
Arkadii G. D'yachkov +3 more
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Reversible cyclic codes over finite chain rings [PDF]
In this paper, necessary and sufficient conditions for the reversibility of a cyclic code of arbitrary length over a finite commutative chain ring have been derived.
Sehmi, Ranjeet +2 more
core +1 more source
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
Reversible Data Hiding in Encrypted DICOM Images Using Cyclic Binary Golay (23, 12) Code
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
A unary error correction code for the near-capacity joint source and channel coding of symbol values from an infinite set [PDF]
A novel Joint Source and Channel Code (JSCC) is proposed, which we refer to as the Unary Error Correction (UEC) code. Unlike existing JSCCs, our UEC facilitates the practical encoding of symbol values that are selected from a set having an infinite ...
Wang, T. +3 more
core +1 more source

