Video Watermarking

People

Ronaldo Rigonni
Pedro Garcia Freitas

Description

In the past few years a rapid diffusion of the Internet along with a proliferation of digital multimedia data has been witnessed. The use of digital techniques make copying, modifying and illegally delivering these data easier. Therefore, it has become important to develop effective methods to identify the owner of digital data and discourage 'piracy’. A common way to do this is to embed some identification data in the file (watermark embedding). Recently, embedding techniques have also been used for different purposes: finger printing, multimedia indexing, context base retrieval, channel quality assessment, etc.

The goal of this project is to study methods and applications of data hiding and watermarking for video processing. Currently, we are investigating the use of video watermark to avoid tempering of copyrighted material. We are also investigating the application of watermarking in different areas, such as error concealment, video quality, and QoS.

Publications

Freitas, Pedro Garcia ; RIGONI, R. ; Farias, Mylene C.Q. ; Araújo, Aletéia P. F. . Error Concealment Using a Halftoning Watermarking Technique. In: SIBGRAPI 2012 - Conference on Graphics, Patterns and Images, 2012, Ouro Preto, MG.
Freitas, Pedro Garcia ; FARIAS, Mylene Christine Queiroz de ; Araújo, Aletéia P. F. . Fast Inverse Halftoning Algorithm for Ordered Dithered Images. In: 2011 24th SIBGRAPI Conference on Graphics, Patterns and Images (Sibgrapi), 2011, Alagoas.
FARIAS, Mylene Christine Queiroz de ; Carvalho, Marcelo M. . Video Quality Assessment Based on Data Hiding for IEEE 802.11 Wireless Networks. In: IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, 2010, Shanghai, China.
FARIAS, Mylene Christine Queiroz de, CARLI, Marco, MITRA, Sanjit K; Objective Video Quality Metric based on Data Hiding. IEEE Transactions on Consumer Electronics. , v.51, p.983 - 992, 2005.
CARLI, Marco ; FARIAS, Mylene Christine Queiroz de ; GELASCA, Elisa Drelie ; TEDESCO, Roberto ; NERI, Alessandro . Quality Assessment Using Data Hiding On Perceptually Important Areas. In: IEEE International Conference on Image Processing, 2005, Genova, 2005.
Adsumilli, Chowdary .b., FARIAS, Mylene Christine Queiroz de, Carli, Marco, Mitra, Sanjit K; A Robust Error Concealment Technique using Data Hiding for Image/Video Transmission over Lossy Wireled/Wireless Channels. IEEE Transactions on Circuits An Systems for Video Technology. , v.15, p.1394 - 1406, 2005.