A Generalised Hadamard Transform [PDF]
Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 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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Root-Hadamard transforms and complementary sequences [PDF]
arXiv, 2019 In this paper we define a new transform on (generalized) Boolean functions, which generalizes the Walsh-Hadamard, nega-Hadamard, $2^k$-Hadamard, consta-Hadamard and all $HN$-transforms.
Medina, Luis A. +3 more
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Fast Walsh-Hadamard Transform and Smooth-Thresholding Based Binary Layers in Deep Neural Networks [PDF]
2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2021 In this paper, we propose a novel layer based on fast Walsh-Hadamard transform (WHT) and smooth-thresholding to replace 1 × 1 convolution layers in deep neural networks. In the WHT domain, we denoise the transform domain coefficients using the new smooth-
Hongyi Pan, Diaa Dabawi, A. Enis Çetin
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ANALYSIS OF THE BASELINE DRIFT ARTIFACT IN HADAMARD TRANSFORM SEPARATION TECHNIQUES [PDF]
Química Nova, 2020 The baseline drift artifact (BDA), namely, the baseline bias between the Hadamard transform (HT) spectrum and the signal averaging (SA) spectrum was unfortunately found in the HT pulsed separation techniques, which makes the HT analytical chemistry face ...
Yan Hong +5 more
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An algorithm for discrete fractional Hadamard transform [PDF]
arXiv, 2015 We present a novel algorithm for calculating the discrete fractional Hadamard transform for data vectors whose size N is a power of two. A direct method for calculation of the discrete fractional Hadamard transform requires $N^2$ multiplications, while ...
Cariow, Aleksandr +1 more
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Detection of Focal and Non-Focal Electroencephalogram Signals Using Fast Walsh-Hadamard Transform and Artificial Neural Network [PDF]
Italian National Conference on Sensors, 2020 The discrimination of non-focal class (NFC) and focal class (FC), is vital in localizing the epileptogenic zone (EZ) during neurosurgery. In the conventional diagnosis method, the neurologist has to visually examine the long hour electroencephalogram ...
J. Prasanna +6 more
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Registration of Brain Images using Fast Walsh Hadamard Transform [PDF]
(IJCSIS) International Journal of Computer Science and Information
Security, Vol. 8, No. 2, May 2010, 2010 A lot of image registration techniques have been developed with great significance for data analysis in medicine, astrophotography, satellite imaging and few other areas.
Neelaveni, R., Sasikala, D.
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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
Tropp, Joel A.
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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 ...
Kim, Chanyul, O'Connor, Noel E.
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Cascaded, self-calibrated, single-pixel mid-infrared Hadamard transform spectrometer
Optics Express, 2021 In this paper, a single-pixel mid-infrared (mid-IR) Hadamard transform spectrometer is developed. The spectrometer's design, fabrication and experimental results are discussed.
Zi Heng Lim +5 more
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