Follow us on: GitHub YouTube Vimeo Twitter

Media Production, Consumption and Sharing

Technological advances are resulting in a complex media ecosystem, in which streaming media can reach a variety of end-devices using a heterogeneous set of delivery methods. Such development allows ubiquitous media consumption, where users consume digital content via a connected ecosystem of devices, whenever they want and wherever they are. Still many challenges remain at the production, distribution, and user levels. The group is developing novel mechanisms for group-based consumption, enriching, and sharing of media content. This results in research breakthroughs such as production tools for facilitating “on demand” temporal media-based compilations for multi-screen consumption of media, communication infrastructures that enable rich media-based shared experiences, optimization algorithms for ubiquitous rendering of media based on the user context and intention, and seminal works on secondary screens and social TV.


  • Object-based production platforms for developing and deploying immersive and interactive multi-screen productions;
  • Socially-aware multimedia authoring for empowering end-users to create and share media based on storytelling principles;
  • Multimedia systems support for social interaction between remote participants in small (multi-party and domestic video conferencing) and large (distributed theatre) mediated communication scenarios;
  • Definition of languages (e.g. SMIL) for the coordinated presentation of temporal objects within container documents. This includes the modeling of user interaction and metadata
  • Production workflows in the area of digital humanities, for providing enriched access to cultural collections and heritage, and enabling social transformation



Open Source


  • T. Röggla, J. Li, S. Fjellsten, J. Jansen, I. Kegel, L. Pilgrim, M. Trimby, D. Williams, and P. Cesar From the Lab to the OB Truck: Object-based Broadcasting at the FA Cup in Wembley Stadium. In Extended Abstracts of the SIGCHI Conference on Human Factors in Computing Systems (ACM CHI), Glasgow, UK, pp. 1-8, 2019.
  • Best Paper
    J. Li, T. Röggla, M. Glancy, J. Jansen, and P. Cesar A New Production Platform for Authoring Object-based Multiscreen TV Viewing Experiences. In Proceedings of the ACM International Conference on Interactive Experiences for Television and Online Video (ACM TVX 2018), Seoul, South Korea, pp. 115-126, 2018.
  • M. Montagud, P. Cesar, F. Boronat, J. Jansen MediaSync: Handbook on Multimedia Synchronization. Handbook on Multimedia Synchronization, Springer-Verlag, 2018, ISBN: 978-3-319-65839-1
  • M.O. van Deventer, H. Stokking, M. Hammond, J. Le Feuvre, and P. Cesar Standards for Multi-stream and Multi-device Media Synchronization. IEEE Communications Magazine, 54(3) : pp. 16-21, 2016.
  • M. Obrist, P. Cesar, D. Geerts, T. Bartindale, and E.F. Churchill Online Video and Interactive TV Experiences. ACM Interactions, 22(5) : pp. 32-37, 2015.
  • D. Williams, P. Cesar, M.F. Ursu, I. Kegel, J. Jansen, and E. Geelhoed Experiments with Distributed Theatre. IEEE MultiMedia (IEEE MM), 22(3) : pp. 4-9, 2015.
  • D.C.A. Bulterman, P. Cesar, and R.L. Guimaraes Socially-aware Multimedia Authoring: Past, Present, and Future. ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM), 9(1s) , 2013.
  • J. Jansen, P. Cesar, D.C.A. Bulterman, T. Stevens, I. Kegel, and J. Issing Enabling Composition-Based Video-Conferencing for the Home. IEEE Transactions on Multimedia, 13(5) : pp. 869-881, 2011.
  • R.L. Guimaraes, P. Cesar, D.C.A. Bulterman, V. Zsombori, and I. Kegel Creating Personalized Memories from Social Events: Community-Based Support for Multi-Camera Recordings of School Concerts. In In Proceedings of the ACM Multimedia Conference (MM'11), Scottsdale, AZ, USA, pp. 303-312, 2011.
  • P. Cesar, D.C.A. Bulterman, J. Jansen, D. Geerts, H. Knoche, and W. Seager Fragment, Tag, Enrich, and Send: Enhancing the Social Sharing of Videos. ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM), 5(3) : pp. 1-27, 2009.
  • J. Jansen, and D.C.A Bulterman SMIL State: an architecture and implementation for adaptive time-based web applications. International Journal on Multimedia Tools and Applications, 43(3) : pp. 203, 2009.
  • P. Cesar, D.C.A. Bulterman, and J.A. Jansen Usages of the Secondary Screen in an Interactive Television Environment: Control, Enrich, Share, and Transfer Television Content. In European Conference on Interactive Television (EuroITV), Salzburg, Austria, pp. 168-177, 2008.



  • Mario Montagud Climent, Design, Development and Evaluation of an Adaptive RTCP-based IDMS Solution, Universidad Politecnica de Valencia, Spain. PhD Thesis, 2015.
  • Rodrigo Laiola Guimaraes, Socially-Aware Multimedia Authoring, Vrije Universiteit Amsterdam, The Netherlands. PhD Thesis, 2014.
  • Ishan Vaishnavi, Coherence in Synchronous Shared Experiences, Vrije Universiteit Amsterdam, The Netherlands. PhD Thesis, 2011.