Time-lapse Videotape Recordings Research Articles

Automatic and rapid visual analysis of sleep stages and epileptic activity. A preliminary report

Closed-circuit television and EEG radio-telemetry have been used in the observation of epileptic patients. Since day-time recording sessions last for 5 or 6 h and overnight sessions for considerably longer, the system includes time-lapse video-tape recording to allow accelerated play-back of video-taped material. A method of automatic EEG analysis has been developed so that quantitative studies of sleep, and of epileptic activity during sleep, can be made when the clinical problem demands it.

Engineering management considerations in data center security

This paper presents an overview of some of the technical and managerial aspects of protecting the personnel, data processing systems and computer facility from deliberate or accidental damage by internal or external forces.With regard to site planning, the environmental compatibility between the computer system, its data communication and electric energy systems must be established. Electro-magnetic spectrum area profiles are utilized to detect high energy transmitters which could necessitate shielding of the facility and filtering of all incoming wire lines. The effects of magnetic fields on magnetic storage media is also discussed.The unique requirements of real-time, on-line systems, i.e. airline reservation, satellite tracking, require special solutions related to uniterruptable power systems (UPS). In this context this paper will also examine the management decisions which must be made regarding the cost effectiveness of a "fail safe" vs "fail soft" system.Data security is examined in light of the time-value relationship of information applied to programming changes, data transmission to remote terminals, available software and hardward cryptography systems.The application of various electro mechanical devices and computing systems for use in area control situations is examined. Additionally, the relatively new use of voice, hand and fingerprints for access control is surveyed.The use of closed circuit television and its effect on personnel management will also be considered. Low light level techniques and time-lapse video tape recording sub systems applied to unmanned surveillance of critical areas or processes is discussed.