{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T20:07:28Z","timestamp":1776110848028,"version":"3.50.1"},"reference-count":51,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2015,6,4]],"date-time":"2015-06-04T00:00:00Z","timestamp":1433376000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003359","name":"Generalitat Valenciana","doi-asserted-by":"publisher","award":["ACIF\/2012\/064"],"award-info":[{"award-number":["ACIF\/2012\/064"]}],"id":[{"id":"10.13039\/501100003359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003359","name":"Generalitat Valenciana","doi-asserted-by":"publisher","award":["ACIF\/2011\/160"],"award-info":[{"award-number":["ACIF\/2011\/160"]}],"id":[{"id":"10.13039\/501100003359","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Ambient Assisted Living Joint Programme","award":["AAL-JP-2012-5-045"],"award-info":[{"award-number":["AAL-JP-2012-5-045"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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\u2019s 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.<\/jats:p>","DOI":"10.3390\/s150612959","type":"journal-article","created":{"date-parts":[[2015,6,4]],"date-time":"2015-06-04T11:54:59Z","timestamp":1433418899000},"page":"12959-12982","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":43,"title":["Visual Privacy by Context: Proposal and Evaluation of a Level-Based Visualisation Scheme"],"prefix":"10.3390","volume":"15","author":[{"given":"Jos\u00e9","family":"Padilla-L\u00f3pez","sequence":"first","affiliation":[{"name":"Department of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandros","family":"Chaaraoui","sequence":"additional","affiliation":[{"name":"Department of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Feng","family":"Gu","sequence":"additional","affiliation":[{"name":"Faculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, KT1 2EE Kingston upon Thames, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3391-711X","authenticated-orcid":false,"given":"Francisco","family":"Fl\u00f3rez-Revuelta","sequence":"additional","affiliation":[{"name":"Department of Computer Technology, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain"},{"name":"Faculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, KT1 2EE Kingston upon Thames, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,6,4]]},"reference":[{"key":"ref_1","unstructured":"(2008). Seniorwatch 2. Assessment of the Senior Market for ICT Progress and Developments, European Commission Information Society and Media Directorate General. Technical Report."},{"key":"ref_2","unstructured":"(2009). Overview of the European strategy in ICT for Ageing Well, European Commission. Technical Report."},{"key":"ref_3","first-page":"103","article-title":"Ambient Intelligence in Assisted Living: Enable Elderly People to Handle Future Interfaces","volume":"Volume 4555","author":"Stephanidis","year":"2007","journal-title":"Universal Access in Human-Computer Interaction. 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