ICASSP
2011
IEEE
13 years 3 months ago
2011
IEEE
This work considers the independent component analysis (ICA) of quaternion random vectors. In particular, we focus on the Gaussian case, and therefore the ICA problem is solved by...
TSP
2010
13 years 6 months ago
2010
A quaternion widely linear (QWL) model for quaternion valued mean-squared-error (MSE) estimation is proposed. The augmented statistics are first introduced into the field of quater...
TSP
2011
13 years 6 months ago
2011
—This paper addresses the independent component analysis (ICA) of quaternion random vectors. In particular, we focus on the Gaussian case and therefore only consider the quaterni...
ICASSP
2010
IEEE
13 years 11 months ago
2010
IEEE
In this paper the two main definitions of quaternion properness (or second order circularity) are reviewed, showing their connection with the structure of the optimal quaternion ...
VISUALIZATION
1998
IEEE
14 years 3 months ago
1998
IEEE
We propose a general paradigm for computing optimal coordinate frame fields that may be exploited to visualize curves and surfaces. Parallel-transport framings, which work well fo...
ICRA
2009
IEEE
14 years 6 months ago
2009
IEEE
— In a wide range of applications the orientation of a rigid body does not need to be restricted to one given orientation, but can be given as a continuous set of frames. We addr...