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

Sensors

José Ramón Padilla-López²  Alexandros Andre Chaaraoui²  Feng Gu³  Francisco Flórez-Revuelta²  Jesús Fontecha¹ 

[1] Department of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain;;Department of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain; E-Mails:;Faculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, KT1 2EE Kingston upon Thames, UK; E-Mail:

关键词: privacy;    context;    intelligent monitoring;    ambient-assisted living;   

DOI  :  10.3390/s150612959

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.