| Hypercomplex Fourier transforms of color images TA Ell, SJ Sangwine IEEE Transactions on image processing 16 (1), 22-35, 2006 | 721 | 2006 |
| Quaternion-Fourier transforms for analysis of two-dimensional linear time-invariant partial differential systems TA Ell Proceedings of 32nd IEEE Conference on Decision and Control, 1830-1841, 1993 | 332 | 1993 |
| Hypercomplex correlation techniques for vector images CE Moxey, SJ Sangwine, TA Ell IEEE Transactions on Signal Processing 51 (7), 1941-1953, 2003 | 264 | 2003 |
| Quaternion Fourier Transforms for Signal and Image Processing T Ell, N Le Bihan, S Sangwine London, and Hoboken, NJ: Wiley-ISTE, 2014 | 205 | 2014 |
| Colour image filters based on hypercomplex convolution SJ Sangwine, TA Ell IEE Proceedings-Vision, Image and Signal Processing 147 (2), 89-93, 2000 | 171 | 2000 |
| Quaternion involutions and anti-involutions TA Ell, SJ Sangwine Computers & Mathematics with Applications 53 (1), 137-143, 2007 | 153 | 2007 |
| The discrete Fourier transform of a colour image SJ Sangwine, TA Ell, JM Blackledge, MJ Turner Image Processing II Mathematical Methods, Algorithms and Applications 430441, 2000 | 138 | 2000 |
| Hypercomplex spectral transformations TA Ell University of Minnesota, 1992 | 115 | 1992 |
| Hypercomplex Fourier transforms of color images SJ Sangwine, TA Ell Proceedings 2001 International Conference on Image Processing (Cat. No …, 2001 | 112 | 2001 |
| Hypercomplex auto-and cross-correlation of color images SJ Sangwine, T Ell Proceedings 1999 International Conference on Image Processing (Cat …, 1999 | 107 | 1999 |
| Hypercomplex algebras in digital signal processing: Benefits and drawbacks D Alfsmann, HG Göckler, SJ Sangwine, TA Ell 2007 15th European Signal Processing Conference, 1322-1326, 2007 | 84 | 2007 |
| Colour-sensitive edge detection using hypercomplex filters CJ Evans, SJ Sangwine, TA Ell 2000 10th European Signal Processing Conference, 1-4, 2000 | 80 | 2000 |
| Decomposition of 2D hypercomplex Fourier transforms into pairs of complex Fourier transforms TA Ell, SJ Sangwine 2000 10th European Signal Processing Conference, 1-4, 2000 | 68 | 2000 |
| Hypercomplex Wiener-Khintchine theorem with application to color image correlation TA Ell, SJ Sangwine Proceedings 2000 International Conference on Image Processing (Cat. No …, 2000 | 67 | 2000 |
| Vector phase correlation SJ Sangwine, TA Eli, CE Moxey Electronics Letters 37 (25), 1, 2001 | 59 | 2001 |
| Fundamental representations and algebraic properties of biquaternions or complexified quaternions SJ Sangwine, TA Ell, N Le Bihan Advances in Applied Clifford Algebras 21, 607-636, 2011 | 58 | 2011 |
| Hypercomplex color-sensitive smoothing filters CJ Evans, SJ Sangwine, TA Ell Proceedings 2000 International Conference on Image Processing (Cat. No …, 2000 | 57 | 2000 |
| Hypercomplex spectral transforms TA Ell Ph. D. dissertation, Univ. Minnesota, 1992 | 56 | 1992 |
| Instantaneous frequency and amplitude of orthocomplex modulated signals based on quaternion Fourier transform N Le Bihan, SJ Sangwine, TA Ell Signal Processing 94, 308-318, 2014 | 41 | 2014 |
| Color-grayscale image registration using hypercomplex phase correlation CE Moxey, SJ Sangwine, TA Ell Proceedings. International Conference on Image Processing 2, II-Ii, 2002 | 37 | 2002 |
Stephen SangwineSenior Lecturer (Retired), University of EssexVerified email at essex.ac.uk
