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Fast Walsh–Hadamard transform

Known as: FWT, Fast Hadamard transform, Fast Walsh transform 
In computational mathematics, the Hadamard ordered fast Walsh–Hadamard transform (FWHTh) is an efficient algorithm to compute the Walsh–Hadamard… 
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Related topics

Related topics

5 relations
AlgorithmComputational complexity theoryFast Fourier transformRecursion

Broader (1)

Digital signal processing

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2017
2017
Computationally Efficient Robust Color Image Watermarking Using Fast Walsh Hadamard Transform
Watermark is the copy deterrence mechanism used in the multimedia signal that is to be protected from hacking and piracy such a… 
2016
2016
Optimized fast Walsh-Hadamard transform on OpenCL-GPU and OpenCL-CPU
The Walsh-Hadamard transform plays a major role in many image and video coding algorithms. In one hand, its intensive use in… 
2015
2015
DWT-based face recognition using fast walsh hadamard transform and chiral image superimposition as pre-processing techniques
One of the major challenges encountered by current Face Recognition (FR) techniques lies in the difficulties of handling varying… 
2011
2011
Performance analysis of brain image registration technique using fast walsh hadamard transform and modified adaptive polar transform
This study proposes a medical image registration method using two algorithms [Fast Walsh Hadamard transform (FWHT) and Modified… 
2001
2001
An FPGA based Walsh Hadamard transforms
The Walsh-Hadamard transforms are important in many image processing applications including compression, filtering and code… 
2000
2000
Performance analysis of a wireless multirate direct-sequence CDMA using fast Walsh transform and decorrelating detection
We analyze the performance of a flexible multirate scheme for direct-sequence code division multiple-access (CDMA) mobile radio… 
1996
1996
Fast decoding of non-binary first order Reed-Muller codes
A minimum distance decoding algorithm for non-binary first order Reed-Muller codes is described. Suggested decoding is based on a… 
1992
1992
Using M-sequences for determining the impulse responses of LTI-systems
1988
1988
Microprocessor implementation of fast Walsh-Hadamard transform for calculation of symmetrical components
A microprocessor-based algorithm for the calculation of symmetrical components of a three-phase system is presented. The… 
Highly Cited
1970
Highly Cited
1970
A Generalized Technique for Spectral Analysis
A technique is presented to implement a class of orthogonal transformations on the order of pN logp N operations. The technique… 
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