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This study presents an automatic, fragile-watermarking-based scheme for monitoring the visual quality and authenticity of video streams broadcast by a communications satellite. In the proposed approach, watermark information is embedded in designated motion vectors within the frames of the original video stream prior to it encryption, modulation and transmission to the satellite. Following the reception...
An effective and real-time technique called "detection-prevention-geolocation (DPG)" system is developed to provide capabilities of detection, prevention and location for a satellite monitoring system (SMS). The proposed mechanism mainly includes three functions: detection, prevention and location. In detection component, to provide the video sequence authentication, the authorized code...
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