{"id":4747,"date":"2013-09-30T09:51:24","date_gmt":"2013-09-30T07:51:24","guid":{"rendered":"http:\/\/www.ftf.or.at\/?p=4747"},"modified":"2013-10-07T13:39:31","modified_gmt":"2013-10-07T11:39:31","slug":"adaptation-of-video-contents-and-perception-quality","status":"publish","type":"post","link":"https:\/\/www.ftf.or.at\/?p=4747","title":{"rendered":"Adaptation of video contents and perception quality"},"content":{"rendered":"

Abstract:<\/p>\n

The ubiquitous access to the Web and, more generally to digital contents has dramatically changed the \u201cdigital experience\u201d everyone daily lives. However, the diversity of contexts (technical contexts, social contexts, personal contexts), the diversity of users, the diversity of digital contents have definitely made mandatory the (or at least, some) personalization of the users\u2019 experience.
\nThe notion of \u201cUniversal Multimedia Experience (UME)\u201d has been coined to represent this attempt to put the user at the center of the content delivery process. The key idea that underpins this concept is the notion of adaptation: adaptation of the delivery process to the network conditions, adaptation of the type of content to the user\u2019s preferences and profile, adaptation of the content itself to the user\u2019s terminal capabilities and user\u2019s activity, etc.
\nThis talk will address some of the key issues related to multimedia content adaptation and multimedia quality of experience.
\nFirst, we will focus on the modeling of the user\u2019s context. Indeed, a basic condition to adaptation is the capture (or the inference) and the representation of the user\u2019s \u201ccontext\u201d i.e., the technical conditions (network, terminal), the user\u2019s activity, the user\u2019s intention, the user\u2019s profile and preferences.
\nThen, the core of the talk will be dedicated to the specific issues of video content adaptation. By their isochronous nature; by the richness and complexity of the information they carry; by the multiplicity of their stakeholders (end user, creator, video broadcaster), video contents raise specific and complex issues related to both semantic, perceptual and even legal constraints and conflicts.
\nTo address these issues, we will introduce the concept of Utility Function, which aims at integrating in one multi-dimensional optimization space, semantic constraints, user\u2019s context characteristics and perceptual considerations.
\nAs a side effect of this modeling of the video adaptation process, we will analyze how the enforcement of access control rules on video contents can be formalized as a problem of content adaptation.
\nFinally, we will investigate some still open issues related to video delivery optimization in P2P and delay-tolerant networks, complex multi-dimensional semantic constraints, visual aesthetics, privacy and security.
\nThis talk will be illustrated by research works developed in the International Doctoral College and Federative Laboratory \u201cMultimedia Distributed and Pervasive Secure Systems\u201d (MDPS) which comprises researchers from the National Institute of Applied Sciences (INSA) of Lyon, France (Pr. L. Brunie\u2019s team), the University of Passau (Pr. H. Kosch\u2019s team), Germany and the University of Milan, Italy (Pr. E. Damiani\u2019s team).<\/p>\n

CV:<\/p>\n

<\/p>\n

<\/p>\n

Lionel Brunie is full professor at the National Institute of Applied Sciences (INSA) of Lyon, France, where he leads the LIRIS DRIM research team.
\nWith 10 permanent researchers and 15+ PhD students, the DRIM team is specialized in distributed data management, multimedia information systems, information retrieval, and sec<\/span>\"photo<\/a><\/span>ur<\/span>ity\/p<\/span>rivacy.
\nIn 2007, along with Pr Harald Kosch (University of Passau, Germany), Lionel Brunie created the French-German doctoral college in \u201cMultimedia Distributed and Pervasive Secur<\/span>e Systems (MDPS)\u201d. MDPS was extended in 2009 to the University of Milan, Italy (Pr. Ernesto Damiani\u2019s team). MDPS proposes both a framework for international co-supervised PhDs and a federative research ins<\/span>titute that develops a joint research agenda.
\nLionel Brunie\u2019s main topics of interest include: data management in large scale and pervasive systems, collaborative multimedia information systems, security and privacy, e-health applications.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Abstract: The ubiquitous access to the Web and, more generally to digital contents has dramatically changed the \u201cdigital experience\u201d everyone daily lives. However, the diversity of contexts (technical contexts, social contexts, personal contexts), the diversity of users, the diversity of … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"sfsi_plus_gutenberg_text_before_share":"","sfsi_plus_gutenberg_show_text_before_share":"","sfsi_plus_gutenberg_icon_type":"","sfsi_plus_gutenberg_icon_alignemt":"","sfsi_plus_gutenburg_max_per_row":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-4747","post","type-post","status-publish","format-standard","hentry","category-tewi-kolloquium"],"_links":{"self":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts\/4747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4747"}],"version-history":[{"count":6,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts\/4747\/revisions"}],"predecessor-version":[{"id":4771,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=\/wp\/v2\/posts\/4747\/revisions\/4771"}],"wp:attachment":[{"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ftf.or.at\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}