Zobrazeno 1 - 10
of 1 157
pro vyhledávání: '"Walsh Hadamard"'
Publikováno v:
Problems of the Regional Energetics, Vol 62, Iss 2, Pp 121-137 (2024)
Modern energy systems are often used as a medium for information transmission, including confidential information, which makes relevant the task of ensuring its security, which today is solved using not only cryptographic but also steganographic mean
Externí odkaz:
https://doaj.org/article/096f865dc690436981e201e23d475377
Autor:
Xin-Qi Liao, Yih-Min Chen
Publikováno v:
IEEE Access, Vol 12, Pp 41727-41733 (2024)
The Digital Video Broadcasting–Satellite Second Generation (DVB-S2) standard enhances coding and modulation techniques beyond those of DVB-S. It provides a spectrum of coding and modulation options (MODCOD) to suit diverse communication environment
Externí odkaz:
https://doaj.org/article/4e315f6a1b3d4a1ea39b77cdb6bb7c34
Publikováno v:
Biosensors, Vol 14, Iss 10, p 482 (2024)
The autofluorescence of erythrocyte porphyrins has emerged as a potential method for multi-cancer early detection (MCED). With this method’s dependence on research-grade spectrofluorometers, significant improvements in instrumentation are necessary
Externí odkaz:
https://doaj.org/article/ef9ffe2f768d4f22b87cd148a377b5f9
Publikováno v:
Axioms, Vol 13, Iss 8, p 495 (2024)
In this paper, three discrete transforms related to vector spaces over finite fields are studied. For our purposes, and according to the properties of the finite fields, the most suitable transforms are as follows: for binary fields, this is the Wals
Externí odkaz:
https://doaj.org/article/97dfb821bbe549aebfc1766eadedb620
Autor:
KVSV Trinadh Reddy, S. Narayana Reddy
Publikováno v:
Symmetry, Vol 16, Iss 7, p 877 (2024)
This paper introduces an effective blind watermarking algorithm for double-color images utilizing the Walsh–Hadamard Transform (WHT) with symmetric embedding locations to enhance imperceptibility. The proposed algorithm leverages the energy accumul
Externí odkaz:
https://doaj.org/article/8c9f1b43b45b4a25aa02886445ba45ab
Autor:
Assiya Sarinova, Alexandr Neftissov, Leyla Rzayeva, Lalita Kirichenko, Sanzhar Kusdavletov, Ilyas Kazambayev
Publikováno v:
Scientific Journal of Astana IT University, Pp 111-124 (2023)
This paper proposes a preprocessing algorithm for aerospace hyperspectral images based on a mathematical apparatus effectively applied in pre-compression transformation problems. In particular, several methods have been analyzed for hyperspectral ima
Externí odkaz:
https://doaj.org/article/7385f5d32b61450dadd95ac64f39d6b0
Publikováno v:
Applied Computing and Informatics, Vol 19, Iss 3/4, Pp 239-264 (2023)
This paper introduces an audio encryption algorithm based on permutation of audio samples using discrete modified Henon map followed by substitution operation with keystream generated from the modified Lorenz-Hyperchaotic system. In this work, the au
Externí odkaz:
https://doaj.org/article/bc11e4dbd206495b9790dbcefae50531
Publikováno v:
Cybernetics and Information Technologies, Vol 23, Iss 1, Pp 110-124 (2023)
Embedding the watermark is still a challenge in image watermarking. The watermark should not reduce the visual quality of the image being watermarked and hard to distinguish from its original. Embedding a watermark of a small size might be a good sol
Externí odkaz:
https://doaj.org/article/4de6831458eb40048af409d3892aa054
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.