SAMARA, March 3 – RIA Novosti. Scientists at Samara University are developing a fake scanner that can be used to verify the authenticity of a photo or video, the university reports.
“Scientists of the Samara National Research University named after Academician S. P. Korolev will create a web service with the help of which anyone can verify the authenticity of a digital photograph or video and detect signs of forgery,” the message says.
According to the press service, a software package that uses distortion detection algorithms will automatically detect traces of changes made to a digital image or video sequence, and will determine the degree of reliability of the digital material proposed for analysis.
“In essence, we are developing a tool to combat fake news, which uses so-called deepfakes. By the end of this year, we plan to create a web service on the basis of our university that will allow us to verify the authenticity of certain images and videos,” – the press service quotes the words of Andrei Kuznetsov, associate professor of the Department of Geoinformatics and Information Security of Samara University.
It is noted that modern deepfake technologies make it possible to replace a person's face in any video or put words into his mouth that he has never uttered. “When analyzing a digital photograph, the image is split into small squares for analysis, and the video is divided into frames, and in each frame local regions are analyzed for distortions. Contours are checked especially carefully, because if a person's face is replaced in the original video, then our the task is to find unoriginal local areas in the frame, to reveal a seam, a seam between the original and unoriginal images – no matter how you hide it, they are still different, “Kuznetsov explained.
According to him, the web service will be useful to those who constantly work with large volumes of video data, for example, journalists. “As far as I know, there is no such project in Russia yet. We can say that our project is an attempt to maintain a kind of information hygiene on the Internet,” Kuznetsov said.