Zobrazeno 1 - 10
of 4 142
pro vyhledávání: '"Hartley transform"'
Autor:
Marina Polyakova, Aleksandr Cariow
Publikováno v:
Applied Sciences, Vol 14, Iss 22, p 10719 (2024)
This paper presents the type-II fast discrete Hartley transform (DHT-II) algorithms for input data sequences of lengths from 2 to 8. The starting point for developing the eight algorithms is the representation of DHT-II as a matrix–vector product.
Externí odkaz:
https://doaj.org/article/e33efb380437492b864c365baf39c202
Autor:
Raviraja M Holla, D Suma
Publikováno v:
Cogent Engineering, Vol 10, Iss 2 (2023)
AbstractThis paper introduces a highly efficient approach for progressive image secret sharing through the Discrete Hartley Transform (DHT), offering distinct advantages over existing methods. Leveraging DHT in the color domain, our approach achieves
Externí odkaz:
https://doaj.org/article/92d7cf00227f4ee1bc3a078a3e9bdc5c
Publikováno v:
IEEE Access, Vol 11, Pp 142734-142747 (2023)
In future mobility, robust obstacle detection is imperative for autonomous vehicles, fostering a reliance on vision-based data and the emergence of light detection and ranging (LiDAR) as a pivotal sensor. Despite challenges of cost and novelty, LiDAR
Externí odkaz:
https://doaj.org/article/c0c026e56b634ffd9bd661cf8e529744
Autor:
Vasant Gaikwad
Publikováno v:
Baghdad Science Journal, Vol 20, Iss 1(SI) (2023)
The Hartley transform generalizes to the fractional Hartley transform (FRHT) which gives various uses in different fields of image encryption. Unfortunately, the available literature of fractional Hartley transform is unable to provide its inversion
Externí odkaz:
https://doaj.org/article/ebf26722b98a4da3993df68f945297a0
Akademický článek
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Publikováno v:
Journal of King Saud University: Computer and Information Sciences, Vol 34, Iss 8, Pp 5883-5897 (2022)
The paper proposes a robust color image encryption scheme based on a real fractional Hartley transform with chaotic transform orders. The multilayer scheme comprises of a PWLCM (piecewise linear chaotic map) based circular blending of color component
Externí odkaz:
https://doaj.org/article/a0fd5424dd834b11b007b2759c6aa390
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 3, Pp 1-10 (2022)
This paper investigates optical orthogonal frequency division multiplexing (O-OFDM) systems with index modulation (IM) based on discrete Hartley transform (DHT) for visible light communications (VLC). An interesting trade-off between spectral efficie
Externí odkaz:
https://doaj.org/article/efe6f7a6785c41caa97dd8f5c419fa75
Autor:
Osama S. Faragallah, Hala S. El-Sayed
Publikováno v:
IEEE Access, Vol 9, Pp 25437-25449 (2021)
This research paper proposes a secure opto-audio cryptosystem using XORing mask and Hartley transform (HT). The digital one dimensional (1D) plainaudio data is converted into two dimensional plainaudio map (2D PAM) and after that, the 2D PAM is divid
Externí odkaz:
https://doaj.org/article/0ec7209dc4234df284e50f422f1a6f74
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-14 (2020)
In this paper, a novel 3D vector decomposition is proposed for color-image encryption, in which a 3D vector is decomposed into two 3D vectors with random size in a random plane for providing a reliable security constraint. The technique of 3D vector
Externí odkaz:
https://doaj.org/article/9f264abfb16b40ddbaf3763603d4f6b8
Akademický článek
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