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ORCIDStephen J. Sangwine
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Journal Articles
- 2018
[j13]Shagufta Yasmin
, Stephen J. Sangwine:
Multi-directional colour edge detector using LQS convolution. IET Image Process. 12(7): 1111-1116 (2018)- 2017
- [j12]Eckhard Hitzer, Stephen J. Sangwine:
Multivector and multivector matrix inverses in real Clifford algebras. Appl. Math. Comput. 311: 375-389 (2017) - [j11]Peter Fletcher, Stephen J. Sangwine:
The development of the quaternion wavelet transform. Signal Process. 136: 2-15 (2017) - 2015
- [j10]Hendrik De Bie, Nele De Schepper, Todd A. Ell, K. Rubrecht, Stephen J. Sangwine:
Connecting spatial and frequency domains for the quaternion Fourier transform. Appl. Math. Comput. 271: 581-593 (2015) - [j9]Stephen J. Sangwine:
Comments on 'A structure-preserving method for the quaternion LU decomposition in quaternionic quantum theory' by Minghui Wang and Wenhao Ma. Comput. Phys. Commun. 188: 128-130 (2015) - 2014
- [j8]Nicolas Le Bihan, Stephen J. Sangwine, Todd A. Ell:
Instantaneous frequency and amplitude of orthocomplex modulated signals based on quaternion Fourier transform. Signal Process. 94: 308-318 (2014) - 2012
- [j7]Stephen J. Sangwine, Todd A. Ell:
Complex and hypercomplex discrete Fourier transforms based on matrix exponential form of Euler's formula. Appl. Math. Comput. 219(2): 644-655 (2012) - 2008
- [j6]Salem Said, Nicolas Le Bihan, Stephen J. Sangwine:
Fast Complexified Quaternion Fourier Transform. IEEE Trans. Signal Process. 56(4): 1522-1531 (2008) - 2007
- [j5]Nicolas Le Bihan, Stephen J. Sangwine:
Jacobi method for quaternion matrix singular value decomposition. Appl. Math. Comput. 187(2): 1265-1271 (2007) - [j4]Todd A. Ell, Stephen J. Sangwine:
Quaternion involutions and anti-involutions. Comput. Math. Appl. 53(1): 137-143 (2007) - [j3]Todd A. Ell, Stephen J. Sangwine:
Hypercomplex Fourier Transforms of Color Images. IEEE Trans. Image Process. 16(1): 22-35 (2007) - 2006
- [j2]Stephen J. Sangwine, Nicolas Le Bihan:
Quaternion singular value decomposition based on bidiagonalization to a real or complex matrix using quaternion Householder transformations. Appl. Math. Comput. 182(1): 727-738 (2006) - 2003
- [j1]C. Eddie Moxey, Stephen J. Sangwine, Todd A. Ell:
Hypercomplex correlation techniques for vector images. IEEE Trans. Signal Process. 51(7): 1941-1953 (2003)
Conference and Workshop Papers
- 2016
- [c26]Shagufta Yasmin, Stephen J. Sangwine:
Quaternion Linear Color Edge-Glowing Filter Using Genetic Algorithm. ACIVS 2016: 616-625 - [c25]Shagufta Yasmin, Stephen J. Sangwine:
Quaternion linear colour edge-sharpening filter using genetic algorithm. CEEC 2016: 124-129 - 2008
- [c24]Nicolas Le Bihan, Stephen J. Sangwine:
The ℍ-analytic signal. EUSIPCO 2008: 1-5 - [c23]Todd A. Ell, Stephen J. Sangwine:
Projective-space colour filters using quaternion algebra. EUSIPCO 2008: 1-5 - [c22]Todd A. Ell, Stephen J. Sangwine:
Theory of vector filters based on linear quaternion functions. EUSIPCO 2008: 1-5 - 2007
- [c21]Stephen J. Sangwine, Nicolas Le Bihan:
Hypercomplex analytic signals : Extension of the analytic signal concept to complex signals. EUSIPCO 2007: 621-624 - [c20]Daniel J. Alfsmann, Heinz G. Göckler, Stephen J. Sangwine, Todd A. Ell:
Hypercomplex algebras in digital signal processing: Benefits and drawbacks. EUSIPCO 2007: 1322-1326 - [c19]Salem Said, Nicolas Courty, Nicolas Le Bihan, Stephen J. Sangwine:
Exact Principal Geodesic Analysis for data on SO(3). EUSIPCO 2007: 1701-1705 - 2004
- [c18]Stephen J. Sangwine, Todd A. Ell:
Gray-centered RGB color space. CGIV 2004: 183-186 - [c17]Stephen J. Sangwine, Todd A. Ell, Barnabas N. Gatsheni:
Colour-dependent linear vector image filtering. EUSIPCO 2004: 585-588 - 2003
- [c16]Stephen J. Sangwine, Barnabas N. Gatsheni, Todd A. Ell:
Vector amplification for color-dependent image filtering. ICIP (2) 2003: 129-132 - [c15]Nicolas Le Bihan, Stephen J. Sangwine:
Quaternion principal component analysis of color images. ICIP (1) 2003: 809-812 - 2002
- [c14]C. Eddie Moxey, Todd A. Ell, Stephen J. Sangwine:
Vector Correlation of Color Images. CGIV 2002: 343-347 - [c13]Stephen J. Sangwine:
Mathematical Approaches to Linear Vector Filtering of Color Images. CGIV 2002: 348-351 - [c12]C. Eddie Moxey, Todd A. Ell, Stephen J. Sangwine:
Hypercomplex operators and vector correlation. EUSIPCO 2002: 1-4 - [c11]Stephen J. Sangwine, Barnabas N. Gatsheni, Todd A. Ell:
Linear colour-dependent image filtering based on vector decomposition. EUSIPCO 2002: 1-4 - [c10]Todd A. Ell, Stephen J. Sangwine:
Vector zone plates as test patterns for linear vector filters. ICIP (2) 2002: 361-364 - [c9]C. Eddie Moxey, Stephen J. Sangwine, Todd A. Ell:
Color-grayscale image registration using hypercomplex phase correlation. ICIP (2) 2002: 385-388 - 2001
- [c8]Todd A. Ell, Stephen J. Sangwine:
Hypercomplex Fourier transforms of color images. ICIP (1) 2001: 137-140 - 2000
- [c7]Anthony J. Bardos, Stephen J. Sangwine:
Virtual reality tool for visualising RGB colour space using VRML. EUSIPCO 2000: 1-4 - [c6]Todd A. Ell, Stephen J. Sangwine:
Decomposition of 2D Hypercomplex Fourier transforms into pairs of complex fourier transforms. EUSIPCO 2000: 1-4 - [c5]Carolyn J. Evans, Stephen J. Sangwine, Todd A. Ell:
Colour-sensitive edge detection using hypercomplex filters. EUSIPCO 2000: 1-4 - [c4]Carolyn J. Evans, Stephen J. Sangwine, Todd A. Ell:
Hypercomplex Color-Sensitive Smoothing Filters. ICIP 2000: 541-544 - [c3]Todd A. Ell, Stephen J. Sangwine:
Hypercomplex Wiener-Khintchine Theorem with Application to Color Image Correlation. ICIP 2000: 792-795 - 1999
- [c2]Stephen J. Sangwine, Todd A. Ell:
Hypercomplex Auto-And-Cross-Correlation of Color Images. ICIP (4) 1999: 319-322 - 1998
- [c1]Stephen J. Sangwine:
The Problem of Defining the Fourier Transform of a Colour Image. ICIP (1) 1998: 171-175
Informal and Other Publications
- 2013
- [i1]Eckhard Hitzer, Stephen J. Sangwine:
The Orthogonal 2D Planes Split of Quaternions and Steerable Quaternion Fourier Transformations. CoRR abs/1306.2157 (2013)
Coauthor Index
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