Monthly Archive: December 2017

InVID at MIL meeting on social media detection and verification

InVID at MIL meeting on social media detection and verification

The InVID project and the developed technologies for newsworthy media collection and verification, were presented on a meeting focusing on tools for detection and verification of videos shared on social networks, that was organized by the Media Informatics Lab of the Journalism & Mass Media Dept. of the Aristotle University of Thessaloniki, on Thursday 14th of December 2017.

An audience (approx. 80 people), comprised by professors, academics and students of the Journalism & Mass Media Dept, journalists and media verification experts, was initially informed about the InVID project by the project co-ordinator Dr. Vasileios Mezaris, who introduced the project’s motivation, goals, overall concept and integrated technologies for newsworthy media collection and verification.

Following, Mr. Evlampios Apostolidis from CERTH-ITI, gave a talk on fake news that rely on video reuse and the way that InVID handles such fakes. In particular, he presented the developed web application for video fragmentation and reverse keyframe search, that assists journalists to perform reverse video search at the fragment-level, and detect previously published versions of the same video online.

Then, Dr. Symeon Papadopoulos from CERTH-ITI, discussed methods for automated detection of fake posts on social media and highlighted the efficiency and functionality of an InVID tool (which was based on one of the outcomes of the Reveal EU-funded project) for contextual analysis. This tool is capable to identify and evaluate verification-related content, and provide clues about the trustworthiness of a social media item to the journalists.

Subsequently, Dr. Markos Zampoglou from CERTH-ITI, presented the developed tools for image forensic analysis. Dr. Zampoglou described, with the help of some representative examples, different types of image tampering, explained the InVID apprach to identidy many of them, and outlined the challenges of this task, the limitations of existing approaches as well as some future directions.

Finally, Mr. Denis Teyssou from AFP, joined the meeting via Google Hangouts and gave a nice presentation about the verification functionalities of the developed plugin for fake news video debunking.

Details about the event (in Greek) are available at:

The program of the event (in Greek) is available at:

InVID at UN experts’ meeting on Digital Image Authentication and Classification

InVID logo

Members of the InVID team will take part in a focused workshop organized by the UN High Commission for Human Rights (OHCHR) in Geneva on December 6-7.

This experts’ meeting on “Digital Image Authentication and Classification” will look into:

  • how human rights investigations are conducted by OHCHR & NGOs;
  • what image- and multimedia-related problems and technical challenges are encountered in the course of such investigations;
  • and how existing and under-development tools for authenticating, analyzing, and classifying digital images (including tools we are developing in InVID!) could contribute to the work of human rights investigators.