Stephen J. Sangwine

40 papers B 3Journal 14Unranked 23
YearRankTypeTitle / Venue / Authors
2018 J jnl
Multi-directional colour edge detector using LQS convolution.
IET Image Process.
Shagufta Yasmin, Stephen J. Sangwine
2017 J jnl
Multivector and multivector matrix inverses in real Clifford algebras.
Appl. Math. Comput.
Eckhard Hitzer, Stephen J. Sangwine
2017 J jnl
The development of the quaternion wavelet transform.
Signal Process.
Peter Fletcher, Stephen J. Sangwine
2016 B conf
Quaternion Linear Color Edge-Glowing Filter Using Genetic Algorithm.
ACIVS
Shagufta Yasmin, Stephen J. Sangwine
2016 — conf
Quaternion linear colour edge-sharpening filter using genetic algorithm.
CEEC
Shagufta Yasmin, Stephen J. Sangwine
2015 J jnl
Comments on 'A structure-preserving method for the quaternion LU decomposition in quaternionic quantum theory' by Minghui Wang and Wenhao Ma.
Comput. Phys. Commun.
Stephen J. Sangwine
2015 J jnl
Connecting spatial and frequency domains for the quaternion Fourier transform.
Appl. Math. Comput.
Hendrik De Bie, Nele De Schepper, Todd A. Ell, K. Rubrecht, Stephen J. Sangwine
2014 J jnl
Instantaneous frequency and amplitude of orthocomplex modulated signals based on quaternion Fourier transform.
Signal Process.
Nicolas Le Bihan, Stephen J. Sangwine, Todd A. Ell
2013 J jnl
The Orthogonal 2D Planes Split of Quaternions and Steerable Quaternion Fourier Transformations.
CoRR
Eckhard Hitzer, Stephen J. Sangwine
2012 J jnl
Complex and hypercomplex discrete Fourier transforms based on matrix exponential form of Euler's formula.
Appl. Math. Comput.
Stephen J. Sangwine, Todd A. Ell
2008 J jnl
Fast Complexified Quaternion Fourier Transform.
IEEE Trans. Signal Process.
Salem Said, Nicolas Le Bihan, Stephen J. Sangwine
2008 — conf
Projective-space colour filters using quaternion algebra.
EUSIPCO
Todd A. Ell, Stephen J. Sangwine
2008 — conf
The ℍ-analytic signal.
EUSIPCO
Nicolas Le Bihan, Stephen J. Sangwine
2008 — conf
Theory of vector filters based on linear quaternion functions.
EUSIPCO
Todd A. Ell, Stephen J. Sangwine
2007 — conf
Exact Principal Geodesic Analysis for data on SO(3).
EUSIPCO
Salem Said, Nicolas Courty, Nicolas Le Bihan, Stephen J. Sangwine
2007 J jnl
Hypercomplex Fourier Transforms of Color Images.
IEEE Trans. Image Process.
Todd A. Ell, Stephen J. Sangwine
2007 — conf
Hypercomplex algebras in digital signal processing: Benefits and drawbacks.
EUSIPCO
Daniel J. Alfsmann, Heinz G. Göckler, Stephen J. Sangwine, Todd A. Ell
2007 — conf
Hypercomplex analytic signals : Extension of the analytic signal concept to complex signals.
EUSIPCO
Stephen J. Sangwine, Nicolas Le Bihan
2007 J jnl
Jacobi method for quaternion matrix singular value decomposition.
Appl. Math. Comput.
Nicolas Le Bihan, Stephen J. Sangwine
2007 J jnl
Quaternion involutions and anti-involutions.
Comput. Math. Appl.
Todd A. Ell, Stephen J. Sangwine
2006 J jnl
Quaternion singular value decomposition based on bidiagonalization to a real or complex matrix using quaternion Householder transformations.
Appl. Math. Comput.
Stephen J. Sangwine, Nicolas Le Bihan
2004 — conf
Colour-dependent linear vector image filtering.
EUSIPCO
Stephen J. Sangwine, Todd A. Ell, Barnabas N. Gatsheni
2004 — conf
Gray-centered RGB color space.
CGIV
Stephen J. Sangwine, Todd A. Ell
2003 J jnl
Hypercomplex correlation techniques for vector images.
IEEE Trans. Signal Process.
C. Eddie Moxey, Stephen J. Sangwine, Todd A. Ell
2003 — conf
Quaternion principal component analysis of color images.
ICIP (1)
Nicolas Le Bihan, Stephen J. Sangwine
2003 — conf
Vector amplification for color-dependent image filtering.
ICIP (2)
Stephen J. Sangwine, Barnabas N. Gatsheni, Todd A. Ell
2002 — conf
Color-grayscale image registration using hypercomplex phase correlation.
ICIP (2)
C. Eddie Moxey, Stephen J. Sangwine, Todd A. Ell
2002 — conf
Hypercomplex operators and vector correlation.
EUSIPCO
C. Eddie Moxey, Todd A. Ell, Stephen J. Sangwine
2002 — conf
Linear colour-dependent image filtering based on vector decomposition.
EUSIPCO
Stephen J. Sangwine, Barnabas N. Gatsheni, Todd A. Ell
2002 — conf
Mathematical Approaches to Linear Vector Filtering of Color Images.
CGIV
Stephen J. Sangwine
2002 — conf
Vector Correlation of Color Images.
CGIV
C. Eddie Moxey, Todd A. Ell, Stephen J. Sangwine
2002 — conf
Vector zone plates as test patterns for linear vector filters.
ICIP (2)
Todd A. Ell, Stephen J. Sangwine
2001 — conf
Hypercomplex Fourier transforms of color images.
ICIP (1)
Todd A. Ell, Stephen J. Sangwine
2000 — conf
Colour-sensitive edge detection using hypercomplex filters.
EUSIPCO
Carolyn J. Evans, Stephen J. Sangwine, Todd A. Ell
2000 — conf
Decomposition of 2D Hypercomplex Fourier transforms into pairs of complex fourier transforms.
EUSIPCO
Todd A. Ell, Stephen J. Sangwine
2000 B conf
Hypercomplex Color-Sensitive Smoothing Filters.
ICIP
Carolyn J. Evans, Stephen J. Sangwine, Todd A. Ell
2000 B conf
Hypercomplex Wiener-Khintchine Theorem with Application to Color Image Correlation.
ICIP
Todd A. Ell, Stephen J. Sangwine
2000 — conf
Virtual reality tool for visualising RGB colour space using VRML.
EUSIPCO
Anthony J. Bardos, Stephen J. Sangwine
1999 — conf
Hypercomplex Auto-And-Cross-Correlation of Color Images.
ICIP (4)
Stephen J. Sangwine, Todd A. Ell
1998 — conf
The Problem of Defining the Fourier Transform of a Colour Image.
ICIP (1)
Stephen J. Sangwine