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

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Title: Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme
Authors: Padilla López, José Ramón | Chaaraoui, Alexandros Andre | Gu, Feng | Flórez-Revuelta, Francisco
Research Group/s: Informática Industrial y Redes de Computadores | Domótica y Ambientes Inteligentes
Center, Department or Service: Universidad de Alicante. Departamento de Tecnología Informática y Computación
Keywords: Privacy | Context | Intelligent monitoring | Ambient-assisted living
Knowledge Area: Arquitectura y Tecnología de Computadores
Issue Date: 4-Jun-2015
Publisher: MDPI
Citation: Padilla-López JR, Chaaraoui AA, Gu F, Flórez-Revuelta F. Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme. Sensors. 2015; 15(6):12959-12982. doi:10.3390/s150612959
Abstract: 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.
Sponsor: This work has been supported by the Ambient Assisted Living Joint Programme and Innovate UK under Project “BREATHEPlatform for self-assessment and efficient management for informal caregivers” (AAL-JP-2012-5-045). José Ramón Padilla-López and Alexandros Andre Chaaraoui acknowledge financial support by the Conselleria d’Educació, Formació i Ocupació of the Generalitat Valenciana (fellowships ACIF/2012/064 and ACIF/2011/160, respectively).
ISSN: 1424-8220
DOI: 10.3390/s150612959
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (
Peer Review: si
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