Stephen J. Sangwine - researchr alias

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Viewing Publication 1 - 39 from 39

2018

Multi-directional colour edge detector using LQS convolutionShagufta Yasmin, Stephen J. Sangwine. iet-ipr, 12(7):1111-1116, 2018. [doi]

2017

The development of the quaternion wavelet transformP. Fletcher, Stephen J. Sangwine. sigpro, 136:2-15, 2017. [doi]

Multivector and multivector matrix inverses in real Clifford algebrasEckhard Hitzer, Stephen J. Sangwine. amc, 311:375-389, 2017. [doi]

2016

Quaternion Linear Color Edge-Glowing Filter Using Genetic AlgorithmShagufta Yasmin, Stephen J. Sangwine. acivs 2016: 616-625 [doi]

Quaternion linear colour edge-sharpening filter using genetic algorithmShagufta Yasmin, Stephen J. Sangwine. ceec 2016: 124-129 [doi]

2015

Connecting spatial and frequency domains for the quaternion Fourier transformHendrik De Bie, Nele De Schepper, Todd A. Ell, K. Rubrecht, Stephen J. Sangwine. amc, 271:581-593, 2015. [doi]

Comments on 'A structure-preserving method for the quaternion LU decomposition in quaternionic quantum theory' by Minghui Wang and Wenhao MaStephen J. Sangwine. cphysics, 188:128-130, 2015. [doi]

2014

Instantaneous frequency and amplitude of orthocomplex modulated signals based on quaternion Fourier transformNicolas Le Bihan, Stephen J. Sangwine, Todd A. Ell. sigpro, 94:308-318, 2014. [doi]

2012

Complex and hypercomplex discrete Fourier transforms based on matrix exponential form of Euler's formulaStephen J. Sangwine, Todd A. Ell. amc, 219(2):644-655, 2012. [doi]

2008

2007

Hypercomplex algebras in digital signal processing: Benefits and drawbacksDaniel J. Alfsmann, Heinz G. Göckler, Stephen J. Sangwine, Todd A. Ell. eusipco 2007: 1322-1326 [doi]

Jacobi method for quaternion matrix singular value decompositionNicolas Le Bihan, Stephen J. Sangwine. amc, 187(2):1265-1271, 2007. [doi]

Hypercomplex Fourier Transforms of Color ImagesTodd A. Ell, Stephen J. Sangwine. TIP, 16(1):22-35, 2007. [doi]

Quaternion involutions and anti-involutionsTodd A. Ell, Stephen J. Sangwine. cma, 53(1):137-143, 2007. [doi]

Exact Principal Geodesic Analysis for data on SO(3)Salem Said, Nicolas Courty, Nicolas Le Bihan, Stephen J. Sangwine. eusipco 2007: 1701-1705 [doi]

Hypercomplex analytic signals : Extension of the analytic signal concept to complex signalsStephen J. Sangwine, Nicolas Le Bihan. eusipco 2007: 621-624 [doi]

2006

Quaternion singular value decomposition based on bidiagonalization to a real or complex matrix using quaternion Householder transformationsStephen J. Sangwine, Nicolas Le Bihan. amc, 182(1):727-738, 2006. [doi]

2004

Gray-centered RGB color spaceStephen J. Sangwine, Todd A. Ell. cgiv 2004: 183-186 [doi]

Colour-dependent linear vector image filteringStephen J. Sangwine, Todd A. Ell, Barnabas N. Gatsheni. eusipco 2004: 585-588 [doi]

2003

Quaternion principal component analysis of color imagesNicolas Le Bihan, Stephen J. Sangwine. icip 2003: 809-812

Hypercomplex correlation techniques for vector imagesC. Eddie Moxey, Stephen J. Sangwine, Todd A. Ell. tsp, 51(7):1941-1953, 2003. [doi]

Vector amplification for color-dependent image filteringStephen J. Sangwine, B. N. Gatsheni, Todd A. Ell. icip 2003: 129-132

2002

2001

Hypercomplex Fourier transforms of color imagesTodd A. Ell, Stephen J. Sangwine. icip 2001: 137-140 [doi]

2000

1999

Hypercomplex Auto-And-Cross-Correlation of Color ImagesStephen J. Sangwine, Todd A. Ell. icip 1999: 319-322

1998

The Problem of Defining the Fourier Transform of a Colour ImageStephen J. Sangwine. icip 1998: 171-175

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