Title
Covariance Matrices Encoding Based on the Log-Euclidean and Affine Invariant Riemannian Metrics.
Abstract
This paper presents coding methods used to encode a set of covariance matrices. Starting from a Gaussian mixture model adapted to the log-Euclidean or affine invariant Riemannian metric, we propose a Fisher Vector (FV) descriptor adapted to each of these metrics: the log Euclidean FV (LE FV) and the Riemannian Fisher Vector (RFV). An experiment is conducted on four conventional texture databases to compare these two metrics and to illustrate the potential of these FV based descriptors compared to state-of-the-art BoW and VLAD based descriptors. A focus is also done to illustrate the advantage of using the Fisher information matrix during the derivation of the FV.
Year
DOI
Venue
2018
10.1109/CVPRW.2018.00080
IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
Field
DocType
ISSN
Discrete mathematics,Histogram,Pattern recognition,Matrix (mathematics),Computer science,Feature extraction,Fisher information,Artificial intelligence,Euclidean geometry,Mixture model,Covariance,Encoding (memory)
Conference
2160-7508
Citations 
PageRank 
References 
1
0.36
0
Authors
4
Name
Order
Citations
PageRank
Ioana Ilea192.91
Lionel Bombrun215020.59
Salem Said35912.54
Y. Berthoumieu438951.66