BUILDING A NORMALITY SPACE OF EVENTS - A PCA Approach to Event Detection

Angelo Cenedese, Ruggero Frezza, Enrico Campana, Giambattista Gennari, Giorgio Raccanelli

2008

Abstract

The detection of events in video streams is a central task in the automatic vision paradigm, and spans heterogeneous fields of application from the surveillance of the environment, to the analysis of scientific data. Actually, although well captured by intuition, the definition itself of event is somewhat hazy and depending on the specific application of interest. In this work, the approach to the problem of event detection is different in nature. Instead of defining the event and searching for it within the data, a normality space of the scene is built from a chosen learning sequence The event detection algorithm works by projecting any newly acquired image onto the normality space so as to calculate a distance from it that represents the innovation of the new frame, and defines the metric for triggering an event alert.

Paper Citation

in Harvard Style

Cenedese A., Frezza R., Campana E., Gennari G. and Raccanelli G. (2008). BUILDING A NORMALITY SPACE OF EVENTS - A PCA Approach to Event Detection . In Proceedings of the Third International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2008) ISBN 978-989-8111-21-0, pages 551-554. DOI: 10.5220/0001085905510554

in Bibtex Style

@conference{visapp08,
author={Angelo Cenedese and Ruggero Frezza and Enrico Campana and Giambattista Gennari and Giorgio Raccanelli},
title={BUILDING A NORMALITY SPACE OF EVENTS - A PCA Approach to Event Detection},
booktitle={Proceedings of the Third International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2008)},
year={2008},
pages={551-554},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001085905510554},
isbn={978-989-8111-21-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, (VISIGRAPP 2008)
TI - BUILDING A NORMALITY SPACE OF EVENTS - A PCA Approach to Event Detection
SN - 978-989-8111-21-0
AU - Cenedese A.
AU - Frezza R.
AU - Campana E.
AU - Gennari G.
AU - Raccanelli G.
PY - 2008
SP - 551
EP - 554
DO - 10.5220/0001085905510554