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Deformation-Based Abnormal Motion Detection using 3D Skeletons
Baptista, Renato; Demisse, Girum; Aouada, Djamila et al.
2018In IEEE International Conference on Image Processing Theory, Tools and Applications (IPTA)
Peer reviewed
 

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Keywords :
Temporal Analysis; Abnormal Detection; Deformation
Abstract :
[en] In this paper, we propose a system for abnormal motion detection using 3D skeleton information, where the abnormal motion is not known a priori. To that end, we present a curve-based representation of a sequence, based on few joints of a 3D skeleton, and a deformation-based distance function. We further introduce a time-variation model that is specifically designed for assessing the quality of a motion; we refer to a distance function that is based on such a model as~\emph{motion quality distance}. The overall advantages of the proposed approach are 1) lower dimensional yet representative sequence representation and 2) a distance function that emphasizes time variation, the motion quality distance, which is a particularly important property for quality assessment. We validate our approach using a publicly available dataset, SPHERE-StairCase2014 dataset. Qualitative and quantitative results show promising performance.
Disciplines :
Computer science
Author, co-author :
Baptista, Renato ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Demisse, Girum ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Aouada, Djamila  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Ottersten, Björn ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
no
Language :
English
Title :
Deformation-Based Abnormal Motion Detection using 3D Skeletons
Publication date :
November 2018
Event name :
IEEE International Conference on Image Processing Theory, Tools and Applications (IPTA)
Event organizer :
Northwestern Polytechnical University
Event place :
Xi'An, China
Event date :
November 07-10, 2018
Audience :
International
Main work title :
IEEE International Conference on Image Processing Theory, Tools and Applications (IPTA)
Peer reviewed :
Peer reviewed
European Projects :
H2020 - 689947 - STARR - Decision SupporT and self-mAnagement system for stRoke survivoRs
Funders :
CE - Commission Européenne [BE]
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