Date and time: 03.12.2018 14:15-15:00

Speaker: Chi Man Pun is Associate Professor and Head of the Department of Computer and Information Science, University of Macau, Macau S.A.R.

Title: Digital Forgery and Multimedia Security Technologies

Place: C115

Slides can be found here (TBA)

Abstract: Along with the development of computer technology and the popularity of software for multimedia information processing, digital forgery is increasingly easily to achieve, which reduces the credibility of the multimedia data such as digital images, videos and audios greatly. Therefore, multimedia forgery detection and information security have been becoming more and more important in recent years. Among the existing kinds of digital forgeries, copy-move forgery is one of the most common ones, which is to paste a copied region of an image into another part of the same image. During the copy and move operation, some image processing methods such as rotation, scaling, blurring, compression, and noise addition are applied to ensure the imperceptibility of the copied region; however, which can increase the difficulties of forgery detection at the same time.  In this talk, we will study the recent advances of multimedia forgery and the related detection methods such as copy-move or splicing forgeries, and multimedia security techniques such as digital watermarking methods.