M Harandi, M Salzmann - Proceedings of the IEEE Conference on …, 2015 - cv-foundation.org
While sparse coding on non-flat Riemannian manifolds has recently become increasingly popular, existing solutions either are dedicated to specific manifolds, or rely on optimization …
Sparsity-based representations have recently led to notable results in various visual recognition tasks. In a separate line of research, Riemannian manifolds have been shown …
Z Uykan - IEEE Transactions on Neural Networks and Learning …, 2021 - ieeexplore.ieee.org
This article extends the expectation-maximization (EM) formulation for the Gaussian mixture model (GMM) with a novel weighted dissimilarity loss. This extension results in the fusion of …
Computational methods are crucial for the analysis of diffusion magnetic resonance imaging (MRI) of the brain. Computational diffusion MRI can provide rich information at many size …
A Ben Tanfous, H Drira… - Proceedings of the IEEE …, 2018 - openaccess.thecvf.com
Suitable shape representations as well as their temporal evolution, termed trajectories, often lie to non-linear manifolds. This puts an additional constraint (ie, non-linearity) in using …
Characterizing brain changes in Alzheimer's disease (AD) is important for patient prognosis and for assessing brain deterioration in clinical trials. In this diffusion weighted imaging …
AB Tanfous, H Drira, BB Amor - IEEE transactions on pattern …, 2019 - ieeexplore.ieee.org
The detection and tracking of human landmarks in video streams has gained in reliability partly due to the availability of affordable RGB-D sensors. The analysis of such time-varying …
This article studies the large-scale subspace clustering (LS 2 C) problem with millions of data points. Many popular subspace clustering methods cannot directly handle the LS 2 C …
White matter characterization studies use the information provided by diffusion magnetic resonance imaging (dMRI) to draw cross-population inferences. However, the structure …