Multimedia Security Group

Multimedia Data is an integral component of our daily communication. Smartphones and other low-cost consumer devices allow to view, capture, and share images, video and audio in real time and with minimum effort. Captured multimedia content is used for communication, entertainment, or record-keeping.
From a security perspective, these wide-spread use cases raise questions of authenticity and origin of controversial content. The Multimedia Security Group aims to provide algorithmic tools to these common questions on multimedia content:

• has an image or video been edited, and if so, how, where, and to what extend?
• is it possible to link an image or video to a particular user?
• what information can be forensically retrieved from degraded multimedia data
  or physical documents?
• how can multimedia content be actively armored to support post-hoc analysis
  of manipulations or attribution?

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