no code implementations • 15 Mar 2015 • Yu-Hui Chen, Dennis Wei, Gregory Newstadt, Marc DeGraef, Jeffrey Simmons, Alfred Hero
We treat the problem of estimation of orientation parameters whose values are invariant to transformations from a spherical symmetry group.
no code implementations • 26 Feb 2015 • Yu-Hui Chen, Se Un Park, Dennis Wei, Gregory Newstadt, Michael Jackson, Jeff P. Simmons, Marc De Graef, Alfred O. Hero
We discretize the domain of the forward model onto a dense grid of Euler angles and for each measured pattern we identify the most similar patterns in the dictionary.
no code implementations • 26 Feb 2015 • Yu-Hui Chen, Dennis Wei, Gregory Newstadt, Jeffrey Simmons, Alfred Hero
We propose a coercive approach to simultaneously register and segment multi-modal images which share similar spatial structure.
no code implementations • 10 Nov 2014 • Yu-Hui Chen, Dennis Wei, Gregory Newstadt, Marc DeGraef, Jeffrey Simmons, Alfred Hero
This paper considers statistical estimation problems where the probability distribution of the observed random variable is invariant with respect to actions of a finite topological group.