Extracting Dynamics from Multi-dimensional Time-evolving Data using a Bag of Higher-order Linear Dynamical Systems

Kosmas Dimitropoulos, Panagiotis Barmpoutis, Alexandors Kitsikidis, Nikos Grammalidis

2016

Abstract

In this paper we address the problem of extracting dynamics from multi-dimensional time-evolving data. To this end, we propose a linear dynamical model (LDS), which is based on the higher order decomposition of the observation data. In this way, we are able to extract a new descriptor for analyzing data of multiple elements coming from of the same or different data sources. Each sequence of data is modeled as a collection of higher order LDS descriptors (h-LDSs), which are estimated in equally sized temporal segments of data. Finally, each sequence is represented as a term frequency histogram following a bag-of-systems approach, in which h-LDSs are used as feature descriptors. For evaluating the performance of the proposed methodology to extract dynamics from time evolving multidimensional data and using them for classification purposes in various applications, in this paper we consider two different cases: dynamic texture analysis and human motion recognition. Experimental results with two datasets for dynamic texture analysis and two datasets for human action recognition demonstrate the great potential of the proposed method.

Paper Citation

in Harvard Style

Dimitropoulos K., Barmpoutis P., Kitsikidis A. and Grammalidis N. (2016). Extracting Dynamics from Multi-dimensional Time-evolving Data using a Bag of Higher-order Linear Dynamical Systems . In Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: RGB-SpectralImaging, (VISIGRAPP 2016) ISBN 978-989-758-175-5, pages 683-688. DOI: 10.5220/0005844006830688

in Bibtex Style

@conference{rgb-spectralimaging16,
author={Kosmas Dimitropoulos and Panagiotis Barmpoutis and Alexandors Kitsikidis and Nikos Grammalidis},
title={Extracting Dynamics from Multi-dimensional Time-evolving Data using a Bag of Higher-order Linear Dynamical Systems},
booktitle={Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: RGB-SpectralImaging, (VISIGRAPP 2016)},
year={2016},
pages={683-688},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005844006830688},
isbn={978-989-758-175-5},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: RGB-SpectralImaging, (VISIGRAPP 2016)
TI - Extracting Dynamics from Multi-dimensional Time-evolving Data using a Bag of Higher-order Linear Dynamical Systems
SN - 978-989-758-175-5
AU - Dimitropoulos K.
AU - Barmpoutis P.
AU - Kitsikidis A.
AU - Grammalidis N.
PY - 2016
SP - 683
EP - 688
DO - 10.5220/0005844006830688