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MNL presented a study on the effects of Video Transcoding Parameters on Event Detection for Surveillance Systems

Dr. Emmanouil Kafetzakis presented a full paper at IEEE International Symposium on Multimedia (ISM), held at Anaheim Marriott Hotel, California, U.S.A., 9-11 December 2013.
The ISM conference is an international forum for researchers to exchange information regarding advances in the state of the art and practice of multimedia computing, as well as to identify the emerging research topics and define the future of multimedia computing.
The paper, entitled “The Impact of Video Transcoding Parameters on Event Detection for Surveillance Systems”, explains the need for transcoding and studies different video quality metrics. Commonly used algorithms for motion and person detection are briefly described, with emphasis in investigating the optimum transcoding configuration parameters. The analysis of the experimental results reveals that the existing video quality metrics are not suitable for automated systems, and that the detection of persons is affected by the reduction of bit rate and resolution, while motion detection is more sensitive to frame rate.
The paper was co-authored by C. Xilouris (NCSRD), M. A. Kourtis (NCSRD), M. Nieto (Vicomtech), I. Jargalsaikhan (Dublin City University), and S. Little (Dublin City University).
The conference proceedings will be published by the IEEE.

Media Networking for Cloud-based Media Surveillance Platform: MNL participating in FP7/SEC SAVASA project

Media Networks Laboratory is participating in the FP7/SEC SAVASA Project, with a total budget of Eur 4M, aiming at providing a common platform for Surveillance Systems based on a cloud infrastructure. in the frame of this project MNL will implement the distributed video surveillance network (using cloud computing technology). Additionally MNL will develop the network security components for secure archive access and retrieval in the distributed video archive architecture based on an IP environment. The project started on December 12, 2011.

Project overview: The SAVASA project aims to create a common platform that provides for the decoupling of CCTV and Video Archive installations from technologies that are generally proprietary and based on diverse technical principles. The SAVASA project introduces an innovative cloud based service for the secure search and access to remote video archives namely Video Surveillance as a Service (VSaaS).