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Video-Based Feedback for Assisting Physical Activity
Baptista, Renato; Goncalves Almeida Antunes, Michel; Aouada, Djamila et al.
2017In 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)
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Keywords :
Template Action; Temporal Alignment; Feedback; Sroke
Abstract :
[en] In this paper, we explore the concept of providing feedback to a user moving in front of a depth camera so that he is able to replicate a specific template action. This can be used as a home based rehabilitation system for stroke survivors, where the objective is for patients to practice and improve their daily life activities. Patients are guided in how to correctly perform an action by following feedback proposals. These proposals are presented in a human interpretable way. In order to align an action that was performed with the template action, we explore two different approaches, namely, Subsequence Dynamic Time Warping and Temporal Commonality Discovery. The first method aims to find the temporal alignment and the second one discovers the interval of the subsequence that shares similar content, after which standard Dynamic Time Warping can be used for the temporal alignment. Then, feedback proposals can be provided in order to correct the user with respect to the template action. Experimental results show that both methods have similar accuracy rate and the computational time is a decisive factor, where Subsequence Dynamic Time Warping achieves faster results.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Disciplines :
Computer science
Author, co-author :
Baptista, Renato ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Goncalves Almeida Antunes, Michel ;  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 :
Video-Based Feedback for Assisting Physical Activity
Publication date :
2017
Event name :
12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)
Event date :
February 27-March 01, 2017
Main work title :
12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)
Peer reviewed :
Peer reviewed
European Projects :
H2020 - 689947 - STARR - Decision SupporT and self-mAnagement system for stRoke survivoRs
FnR Project :
FNR10415355 - 3d Action Recognition Using Refinement And Invariance Strategies For Reliable Surveillance, 2015 (01/06/2016-31/05/2019) - Bjorn Ottersten
Funders :
CE - Commission Européenne [BE]
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