IMPROVED ANALYSIS OF THE SUBSAMPLED RANDOMIZED HADAMARD TRANSFORM [PDF]
, 2011 This paper presents an improved analysis of a structured dimension-reduction map called the subsampled randomized Hadamard transform. This argument demonstrates that the map preserves the Euclidean geometry of an entire subspace of vectors. The new proof
Joel A. Tropp
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USING THE DISCRETE HADAMARD TRANSFORM TO DETECT MOVING OBJECTS IN SURVEILLANCE VIDEO [PDF]
, 2009 In this paper we present an approach to object detection in surveillance video based on detecting moving edges using the Hadamard transform. The proposed method is characterized by robustness to illumination changes and ghosting effects and provides ...
Chanyul Kim, Noel E. O’Connor
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Pauli decomposition via the fast Walsh-Hadamard transform
New Journal of PhysicsThe decomposition of a square matrix into a sum of Pauli strings is a classical pre-processing step required to realize many quantum algorithms. Such a decomposition requires significant computational resources for large matrices. We present an exact and
Timothy N Georges +3 more
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The Sufficient Condition for Ensuring the Reliability of Perception of the Steganographic Message in the Walsh-Hadamard Transform Domain [PDF]
Problems of the Regional Energetics, 2022 In view of the high compatibility of the Walsh-Hadamard transform to the architecture of mod-ern computing facilities, it is sensible to use it in methods of steganography and steganalysis.
Kobozeva A.A., Sokolov A.V.
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A novel blockchain-watermarking mechanism utilizing interplanetary file system and fast walsh hadamard transform. [PDF]
iScienceLiu T, Lai SN, Yuan X, Liu Y, Lam CT.
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Efficient Coding of the Embedded Signal in Steganographic Systems with Multiple Access [PDF]
Problems of the Regional Energetics, 2021 Today, steganographic systems with multiple access are of considerable importance. In such sys-tems, the orthogonal Walsh-Hadamard transform is most often used for multiplexing and divid-ing channels, which leads to the need for efficient coding of the ...
Kobozeva A.A., Kobozeva A.A.,
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Design of Grover’s Algorithm over 2, 3 and 4-Qubit Systems in Quantum Programming Studio [PDF]
International Journal of Electronics and Telecommunications, 2022 In this paper, we design and analyse the Circuit for Grover’s Quantum Search Algorithm on 2, 3 and 4-qubit systems, in terms of number of gates, representation of state vectors and measurement probability for the state vectors.
Diana Jingle +4 more
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Lyapunov Direct Method for Nonlinear Hadamard-Type Fractional Order Systems
Fractal and Fractional, 2022 In this paper, a rigorous Lyapunov direct method (LDM) is proposed to analyze the stability of fractional non-linear systems involving Hadamard or Caputo–Hadamard derivatives.
Changping Dai, Weiyuan Ma
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Watermark Embedding Scheme with Variance of Chromatic Components
Engineering Proceedings, 2023 This paper contains the idea of inserting a watermark with the variance of color components of the image. The color image is converted into CIE color space.
Dur-e-Jabeen +5 more
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Reversible Hadamard transforms [PDF]
Facta universitatis - series: Electronics and Energetics, 2007 A coding method which reconstruct an original digital image without distortion is called "reversible coding". In case of the classical block transform coding (Cosine, Hadamard, Haar and etc) we have to make the number of levels of the transform coefficient very large in order to reconstruct the input signal with no distortion.
Jaakko Astola +3 more
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