An Expectation Maximisation Algorithm for Behaviour Analysis in Video

Isupova, Olga; Mihaylova, Lyudmila; Kuzin, Danil; Markarian, Garik; Septier, Francois

Document type :

Communication dans un congrès avec actes

Title :

An Expectation Maximisation Algorithm for Behaviour Analysis in Video

Author(s) :

Isupova, Olga [Auteur]
University of Sheffield [Sheffield]
Mihaylova, Lyudmila [Auteur]
University of Sheffield [Sheffield]
Kuzin, Danil [Auteur]
University of Sheffield [Sheffield]
Markarian, Garik [Auteur]
Lancaster University
Septier, Francois [Auteur]
Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]

Conference title :

Int. Conf. on Information Fusion (FUSION)

City :

Washington D.C.

Country :

Etats-Unis d'Amérique

Start date of the conference :

2015-07-06

Publication date :

2015-07-06

HAL domain(s) :

Sciences de l'ingénieur [physics]/Traitement du signal et de l'image [eess.SP]

English abstract : [en]

Surveillance systems require advanced algorithms able to make decisions without a human operator or with minimal assistance from human operators. In this paper we propose a novel approach for dynamic topic modeling to ...
Show more >Surveillance systems require advanced algorithms able to make decisions without a human operator or with minimal assistance from human operators. In this paper we propose a novel approach for dynamic topic modeling to detect abnormal behaviour in video sequences. The topic model de- scribes activities and behaviours in the scene assuming behaviour temporal dynamics. The new inference scheme based on an Expectation-Maximisation algorithm is implemented without an approximation at intermediate stages. The proposed approach for behaviour analysis is compared with a Gibbs sampling inference scheme. The experiments both on synthetic and real data show that the model, based on Expectation-Maximisation approach, outperforms the one, based on Gibbs sampling scheme.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL

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