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.