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Computational Intelligence and Neuroscience - Volume 2016 2016, Article ID 4351435, 14 pages -

Research ArticleDipartimento di Ingegneria dell’Informazione, Università Politecnica delle Marche, 60131 Ancona, Italy

Received 3 December 2015; Revised 3 February 2016; Accepted 18 February 2016

Academic Editor: Robertas Damaševičius

Copyright © 2016 Enea Cippitelli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of Active and Assisted Living is to develop tools to promote the ageing in place of elderly people, and human activity recognition algorithms can help to monitor aged people in home environments. Different types of sensors can be used to address this task and the RGBD sensors, especially the ones used for gaming, are cost-effective and provide much information about the environment. This work aims to propose an activity recognition algorithm exploiting skeleton data extracted by RGBD sensors. The system is based on the extraction of key poses to compose a feature vector, and a multiclass Support Vector Machine to perform classification. Computation and association of key poses are carried out using a clustering algorithm, without the need of a learning algorithm. The proposed approach is evaluated on five publicly available datasets for activity recognition, showing promising results especially when applied for the recognition of AAL related actions. Finally, the current applicability of this solution in AAL scenarios and the future improvements needed are discussed.





Author: Enea Cippitelli, Samuele Gasparrini, Ennio Gambi, and Susanna Spinsante

Source: https://www.hindawi.com/



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