Learning Log-Determinant Divergences for Positive Definite Matrices

no code implementations • 13 Apr 2021 • Anoop Cherian, Panagiotis Stanitsas, Jue Wang, Mehrtash Harandi, Vassilios Morellas, Nikolaos Papanikolopoulos

There exist several similarity measures for comparing SPD matrices with documented benefits.

Clustering Dictionary Learning

Learning Discriminative ab-Divergences for Positive Definite Matrices

no code implementations • ICCV 2017 • Anoop Cherian, Panagiotis Stanitsas, Mehrtash Harandi, Vassilios Morellas, Nikolaos Papanikolopoulos

Symmetric positive definite (SPD) matrices are useful for capturing second-order statistics of visual data.

Dictionary Learning Metric Learning +1

Learning Discriminative Alpha-Beta-divergence for Positive Definite Matrices (Extended Version)

no code implementations • 5 Aug 2017 • Anoop Cherian, Panagiotis Stanitsas, Mehrtash Harandi, Vassilios Morellas, Nikolaos Papanikolopoulos

Symmetric positive definite (SPD) matrices are useful for capturing second-order statistics of visual data.

Dictionary Learning Metric Learning +1

Video Human Segmentation using Fuzzy Object Models and its Application to Body Pose Estimation of Toddlers for Behavior Studies

no code implementations • 29 May 2013 • Thiago V. Spina, Mariano Tepper, Amy Esler, Vassilios Morellas, Nikolaos Papanikolopoulos, Alexandre X. Falcão, Guillermo Sapiro

Video object segmentation is a challenging problem due to the presence of deformable, connected, and articulated objects, intra- and inter-object occlusions, object motion, and poor lighting.

Object Pose Estimation +4