Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme

Privacy in image and video data has become an important subject since cameras are being installed in an increasing number of public and private spaces. Specifically, in assisted living, intelligent monitoring based on computer vision can allow one to provide risk detection and support services that...

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Main Authors: José Ramón Padilla-López, Alexandros Andre Chaaraoui, Feng Gu, Francisco Flórez-Revuelta
Format: Article
Language:English
Published: MDPI AG 2015-06-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/15/6/12959
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author José Ramón Padilla-López
Alexandros Andre Chaaraoui
Feng Gu
Francisco Flórez-Revuelta
author_facet José Ramón Padilla-López
Alexandros Andre Chaaraoui
Feng Gu
Francisco Flórez-Revuelta
author_sort José Ramón Padilla-López
collection DOAJ
description Privacy in image and video data has become an important subject since cameras are being installed in an increasing number of public and private spaces. Specifically, in assisted living, intelligent monitoring based on computer vision can allow one to provide risk detection and support services that increase people’s autonomy at home. In the present work, a level-based visualisation scheme is proposed to provide visual privacy when human intervention is necessary, such as at telerehabilitation and safety assessment applications. Visualisation levels are dynamically selected based on the previously modelled context. In this way, different levels of protection can be provided, maintaining the necessary intelligibility required for the applications. Furthermore, a case study of a living room, where a top-view camera is installed, is presented. Finally, the performed survey-based evaluation indicates the degree of protection provided by the different visualisation models, as well as the personal privacy preferences and valuations of the users.
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spelling doaj.art-aab56e1a56d344b19a54817a1b70aafe2022-12-22T02:53:20ZengMDPI AGSensors1424-82202015-06-01156129591298210.3390/s150612959s150612959Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation SchemeJosé Ramón Padilla-López0Alexandros Andre Chaaraoui1Feng Gu2Francisco Flórez-Revuelta3Department of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, SpainDepartment of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, SpainFaculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, KT1 2EE Kingston upon Thames, UKDepartment of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, SpainPrivacy in image and video data has become an important subject since cameras are being installed in an increasing number of public and private spaces. Specifically, in assisted living, intelligent monitoring based on computer vision can allow one to provide risk detection and support services that increase people’s autonomy at home. In the present work, a level-based visualisation scheme is proposed to provide visual privacy when human intervention is necessary, such as at telerehabilitation and safety assessment applications. Visualisation levels are dynamically selected based on the previously modelled context. In this way, different levels of protection can be provided, maintaining the necessary intelligibility required for the applications. Furthermore, a case study of a living room, where a top-view camera is installed, is presented. Finally, the performed survey-based evaluation indicates the degree of protection provided by the different visualisation models, as well as the personal privacy preferences and valuations of the users.http://www.mdpi.com/1424-8220/15/6/12959privacycontextintelligent monitoringambient-assisted living
spellingShingle José Ramón Padilla-López
Alexandros Andre Chaaraoui
Feng Gu
Francisco Flórez-Revuelta
Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
Sensors
privacy
context
intelligent monitoring
ambient-assisted living
title Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
title_full Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
title_fullStr Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
title_full_unstemmed Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
title_short Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
title_sort visual privacy by context proposal and evaluation of a level based visualisation scheme
topic privacy
context
intelligent monitoring
ambient-assisted living
url http://www.mdpi.com/1424-8220/15/6/12959
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