A multimedia system for the surveillance of unattended railway stations

In this paper a multimedia system for surveying remote environments is presented. The goal of the proposed system is to alert the surveillance operator when an abandoned object is detected in waiting rooms of unattended railway stations. The system is based on a monochromatic TV-camera acquiring video data about the surveyed environment; this data are processed at local level to reduce redundancy and only necessary data and images are sent to the remote control centre. The paper is focused on describing two main aspects: 1) image sequence processing 2) channel coding transmission strategies for security issues.