MediaMixer will hold a half day tutorial on Re-mixing Media on the Web at this year’s WWW2014 conference on April 7 2014 in Seoul, S Korea. This tutorial will address the state of the art in the area of online media analysis, annotation and linking, reflecting that a number of Web-based specifications and technologies are now emerging that in combination can provide the technical solution for media owners to be enabled to manage and re-use their online media at a fragment level.

To join, just include the Tutorial in your conference registration at

For more information about the topics and speakers at the tutorial, see

Our colleague Vasileios Mezaris (CERTH) will hold the next live Webinar on 14 November (1100 CET) at  It is titled “Fragmenting your Media Assets meaningfully – media analysis for fragment detection and extraction“.

The Webinar will discuss a set of video processing techniques for media fragment creation and annotation. These include techniques for the temporal segmentation of the video into shots and scenes, the re-detection of appearances of specific objects throughout the video, and the detection of concepts that describe the temporal video fragments. Such techniques are the first step towards converting the raw video material into meaningful media fragments.

Join the live presentation and discuss with us via Twitter @project_mmixer. Webinars are also recorded and will be available online at later. MediaMixer community members receive regular mails reminding them of MediaMixer activities – join free at 

The daily news shows have become the TV broadcaster´s first reference to their viewers. But unfortunately, the delivery of just-in-time, high quality news shows has become more challenging over the last years, by the needs 1) to serve the cross-department workflow integrating the growing number of input channels, 2) for a more complex composition of news contents to serve additional distribution channels and 3) to further exploit the available vast archives and raw materials.

Regarding this challenges, the MediaMixer project offers to shift the workflow more towards the Media Fragment level and employ the MediaMixer toolset in a SmartNews use case. This allows to improve the news production through:

  • the cross-department retrieval for specific persons, places or objects inside the vast video content,
  • the establishment of a repository with re-usable video snippets improving the collaboration and shorten production time and
  • the more flexible composition of contents to serve different distribution channels such as Internet, TV, HbbTV or mobile TV. In addition, the semi-automatic Media Fragment identification and annotation of the MediaMixer toolset enables to better exploit the vast amount of footage and raw materials.

The MediaMixer project provides a demonstrator offering retrieval, recommendation and re-use of Media Fragments for newsroom editors in the “Climate” and “Renewable Energy” domains. 


News video material storage and retrieval for the broadcasters’ newsroom is promoted by the partner CONDAT providing search and recommendation support for the newsroom tool of ANNOVA1 GmbH for MediaMixer.

1 ANNOVA is one of the leading TV newsroom providers in Europe

The MediaMixer project is pleased to announce the release of the recording of our recent Webinar on Describing Media Assets, given by Raphael Troncy of EURECOM. In this talk he explains how semantic descriptions of non-textual media available on the Web can facilitate retrieval, re-use and presentation of media assets.

He first presents the Media Fragment URI specification, a recent W3C recommendation that enables to uniquely identifying sub-parts of media assets in the same way that the fragment identifier in the URI can refer to part of an HTML or XML document. Then models and ontologies are described that we will illustrate with several real world applications using semantic annotations attached to media fragments.

This is the second in a set of Webinars on MediaMixer technology and their benefits for the enterprise, see for the full schedule and past Webinar recordings.

MediaMixer Webinars are made possible thanks to the Jozef Stefan Institute and VideoLectures.NET.

In today’s Grand Challenge session at ACM Multimedia 2013, two paper-solutions for the MediaMixer / VideoLectures.NET challenge on temporal segmentation of e-learning videos were presented:

1) MUST VIS system (IDIAP Switzerland) offers an appealing visualisation of video-to-video and segment-to-segment linking based on video analysis and tagging, and their associations. A first demo was presented which can be seen at

2) The Hasso Platner Institute (HPI) presented a solution based purely on OCR analysis of the accompanying lecture slides, using common partners to provide for solutions for Global and Partial Segmentation of the video, being more accurate than the use of shot segmentation techniques relying on transitions between video frames. The slideset is available at

While the global Grand Challenge winners will be announced tonight, the MediaMixer project has already selected their Grand Challenge winner, and congratulates IDIAP Switzerland on an appealing visualisation of video fragment associations which can be of great usability value in our VideoLecturesMashup demonstrator. The authors win a chance to visit the VideoLectures team in Ljubljana, Slovenia and collaborate with us on a new version of VideoLecturesMashup!


The W3C recommendation on the Media Fragment URI specification is an important part of the technological solution promoted by MediaMixer. It provides a standardised manner to refer to spatial and temporal fragments of a media item with the goal that this can be used across software systems in a media workflow. Now MediaMixer has published links on its community portal to two background presentations on Media Fragments:

Material on Media Fragments will also be updated after the summer and the subject of a dedicated Webinar by MediaMixer, stay tuned!

MediaMixer has published two new tutorials on its community portal, free to access by registered members:

They cover techniques and technologies to analyse media assets in order to determine the significant spatial and temporal regions which can be defined as separate media fragments. Each fragment can then be individually annotated with the concepts and topics they represent, using structured annotation models and ontologies to allow for semantic search and machine-automated processing.

The combination of these technologies can allow media owners to better prepare their media for retrieval and re-use, both internally and if desired by external parties who may have to agree to a specified license and/or pay a fee. Future tutorials by MediaMixer will address the topics of media fragment management, rights and re-use!

MediaMixer as a project is promoting the use of innovative semantic technology for analysing, annotating, managing and re-using media assets at the fragment level to the benefit of both the media owner and the media consumer.

However, any new technology needs explanation: what technology exists for each task? where is it and how can I use it? what does it support, what not, and what experiences have been had with it? MediaMixer supports interested adopters on its community portal with lists of useful software and demonstrators, and can directly help community members via online forums, events and offers of knowledge and technology transfer*.

As part of this, we just published the first version of the Core Technology Set.  This document introduces the different aspects of MediaMixer technology with a state of the art, existing technology and specifications, and links to further information and downloads. We cover:

  • Media Fragment specification, server playout and client playout
  • Media Fragment creation via visual analysis
  • Media Fragment description using annotation models and controlled vocabularies
  • Media Fragment rights management
  • Media Fragment asset management including fragment identification
  • Media Fragment re-use via search and retrieval in IT systems

This technology is in flux and we will update the Core Technology Set when necessary. Any registered community member (registration is free) can access the document, and if you have questions or comments on it, you can start a discussion in our What is MediaMixer? forum.