Results 21 to 30 of about 5,165 (219)
A Generalised Hadamard Transform [PDF]
, 2005 A Generalised Hadamard Transform for multi-phase or multilevel signals is introduced, which includes the Fourier, Generalised, Discrete Fourier, Walsh-Hadamard and Reverse Jacket Transforms.
Horadam, K. J.
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Complexity adaptation in H.264/AVC video coder for static cameras [PDF]
, 2009 H.264/AVC uses variable block size motion estimation (VBSME) to improve coding gain. However, its complexity is significant and fixed regardless of the required quality or of the scene characteristics. In this paper, we propose an adaptive complexity
Kim, Chanyul, O'Connor, Noel E.
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Walsh–Hadamard Kernel Feature-Based Image Compression Using DCT with Bi-Level Quantization
Computers, 2022 To meet the high bit rate requirements in many multimedia applications, a lossy image compression algorithm based on Walsh–Hadamard kernel-based feature extraction, discrete cosine transform (DCT), and bi-level quantization is proposed in this paper. The
Dibyalekha Nayak +3 more
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Robust Steganographic Method with Code-Controlled Information Embedding [PDF]
Problems of the Regional Energetics, 2021 In view of the fact that most images are compressed when transmitted through telecommunica-tion systems and telecommunication systems in the energetics, from the point of view of the practical use of steganographic algorithms in real information security
Kobozeva A.A. , Sokolov A.V
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IMAGE COMPRESSION BY USING WALSH AND FRAMELET TRANSFORM
Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2019 In this paper, Framelet and Walsh transform are proposed for transformation, and then using arithmetic coding for compress an image. The goal is to achieve higher compression ratio by applying two levels Framelet transform (FLT), and then apply 2D Walsh ...
Nora H. Sultan
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Visible Light Communication: An Investigation of LED Non-Linearity Effects on VLC Utilising C-OFDM
Photonics, 2022 The electro-optic output of light-emitting diodes commonly used in visible light communication systems is generally nonlinear in nature. It is particularly problematic when using advanced modulation formats, such as orthogonal frequency-division ...
Jummah Abdulwali, Said Boussakta
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Low computational complexity variable block size (VBS) partitioning for motion estimation using the Walsh Hadamard transform (WHT) [PDF]
, 2009 Variable Block Size (VBS) based motion estimation has been adapted in state of the art video coding, such as H.264/AVC, VC-1. However, a low complexity H.264/AVC encoder cannot take advantage of VBS due to its power consumption requirements.
Kim, Chanyul, O'Connor, Noel E.
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Cache miss analysis of WHT algorithms [PDF]
Discrete Mathematics & Theoretical Computer Science, 2005 On modern computers memory access patterns and cache utilization are as important, if not more important, than operation count in obtaining high-performance implementations of algorithms.
Mihai Furis +2 more
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Quantum computers can search rapidly by using almost any transformation [PDF]
, 1997 A quantum computer has a clear advantage over a classical computer for exhaustive search. The quantum mechanical algorithm for exhaustive search was originally derived by using subtle properties of a particular quantum mechanical operation called the ...
C. H. Bennett +11 more
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New fast Walsh–Hadamard–Hartley transform algorithm
International Journal of Electrical and Computer Engineering (IJECE), 2023 <span lang="EN-US">This paper presents an efficient fast Walsh–Hadamard–Hartley transform (FWHT) algorithm that incorporates the computation of the Walsh-Hadamard transform (WHT) with the discrete Hartley transform (DHT) into an orthogonal, unitary single fast transform possesses the block diagonal structure. The proposed algorithm is implemented
Suha Suliman Mardan, Mounir Taha Hamood
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