Patrick R. Girard

Hyperquaternions: An Efficient Mathematical Formalism for Geometry

Patrick Clarysse, Philippe Delachartre, Robert Goutte, 2019, GSI.

Analytic signal phase-based myocardial motion estimation in tagged MRI sequences by a bilinear model and motion compensation

Patrick Clarysse, Adrian Basarab, Pierre Croisille, 2015, Medical Image Anal..

Differential Geometry Revisited by Biquaternion Clifford Algebra

Patrick Clarysse, Philippe Delachartre, Patrick R. Girard, 2014, Curves and Surfaces.

Quaternions, Clifford Algebras and Relativistic Physics

Patrick R. Girard, P. Girard, 2007 .

Analytic Video (2D + t) Signals Using Clifford–Fourier Transforms in Multiquaternion Grassmann–Hamilton–Clifford Algebras

Patrick Clarysse, Philippe Delachartre, Robert Goutte, 2013 .

Hyperquaternions: A New Tool for Physics

Patrick Clarysse, Philippe Delachartre, Robert Goutte, 2018, Advances in Applied Clifford Algebras.

Myocardial motion estimation using optical flow with multiple constraint equations

Patrick Clarysse, Pierre Croisille, Philippe Delachartre, 2014, 2014 12th International Conference on Signal Processing (ICSP).

3-D biquaternionic analytic signal and application to envelope detection in 3-D ultrasound imaging

Patrick Clarysse, Philippe Delachartre, Patrick R. Girard, 2012, 2012 International Conference on 3D Imaging (IC3D).

Einstein’s equations and Clifford algebra

Patrick R. Girard, P. Girard, 1999 .