http://dx.doi.org/10.1016/j.imavis.2009.07.009">
 

Document Type

Journal Article

Department/Unit

Department of Computer Science

Title

Human action recognition using boosted EigenActions

Language

English

Abstract

This paper proposes a boosting EigenActions algorithm for human action recognition. A spatio-temporal Information Saliency Map (ISM) is calculated from a video sequence by estimating pixel density function. A continuous human action is segmented into a set of primitive periodic motion cycles from information saliency curve. Each cycle of motion is represented by a Salient Action Unit (SAU), which is used to determine the EigenAction using principle component analysis. A human action classifier is developed using multi-class Adaboost algorithm with Bayesian hypothesis as the weak classifier. Given a human action video sequence, the proposed method effectively locates the SAUs in the video, and recognizes the human actions by categorizing the SAUs. Two publicly available human action databases, namely KTH and Weizmann, are selected for evaluation. The average recognition accuracy are 81.5% and 98.3% for KTH and Weizmann databases, respectively. Comparative results with two recent methods and robustness test results are also reported. © 2009 Elsevier B.V. All rights reserved.

Keywords

Adaboost, Human action recognition, Salient action unit

Publication Date

2010

Source Publication Title

Image and Vision Computing

Volume

28

Issue

5

Start Page

825

End Page

835

Publisher

Elsevier

ISSN (print)

02628856

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