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Marc
Chaumont was born in November 1976, in France. He received his Engineer Diploma
in Computer Sciences at the INSA (National Institute of Applied Sciences) of
Rennes, France in 1999 and his Ph.D. in Computer Sciences at the IRISA Rennes (INRIA,
CNRS, University of Rennes 2, and INSA) in 2003. His Ph.D. thesis was about
video objects representations, with dynamic coding and scalability
functionalities, in the video compression area. He has carried on for one year
its research activity at the INRIA Rennes and for one another year at the
University Technological Institute of Bayonne, France as a Visiting Assistant
Professor. During this last year, he focused on face tracking using a
deformable 3D face model. Since September 2005, he is an Assistant Professor in
the LIRMM (Laboratory of Computer Science, Robotic and Microelectronic) of
Montpellier and the University of Nîmes. His current interests areas are
watermarking, steganography, video & image compression, and to a lesser
extent segmentation & tracking in videos. |
Research Topics :Steganography:... Watermarking: Watermarking is the art of modifying a media (picture, sound, vidéo...) in order to hide a message, most of the time related with the media and most of the time in an inperceptible way. We are looking to watermarking scheme which are robust to the degredations occuring after the watermarking. Those degredations may be classical treatments such as filtering, compression... We study informed approaches (appeared in 1998). We are also working on the security issues (watermarking community is working on it since 2005) to ensure the secret communication. An attacker should not be able to extract a secret information such a key or a message. Compression: Compression is the art of reducing the information redondancy. Compression is a major concern of data storage and data tranmission. For videos, pictures or sounds, compression is often lossy. We are proposing improvements, or fonctionalities adds, to video/image compression standards such as H.264/AVC (MPEG-4 Part10), SVC (Scalable Video Coding) or JPEG2000. The watermarking is one of the fonctionality we are looking to intergrate into video/image codecs. Analysis, Image and Video Treatments (segmentation, tracking in vidéos, …): I have essentially worked on this topic until 2006. I still occasionally contribute in it. I have worked on segmentation and on videos objects tracking. I have also worked on real-time face tracking with a deformable 3D model using active models. Key-words: Watermarking, Steganography, Security, Compression, Segmentation, Video tracking. |