Procuratorate Synchronized Audio And Video Recording Systems Integration Design And Implementation

People's Procuratorate is the country's legal supervisory body has the right to job-related crimes investigation. Early on the interrogation of criminal suspects more than in the office, hotel or other places, low efficiency, can not guarantee the safety of handling and the prevention of criminal suspects retracted. In order to pass the engineering practice, to construct a system for questioning prosecution of criminal suspects of audio and video post system, can achieve the synchronization of audio and video recording interrogation scene, and can achieve the remote monitoring through the network command.According to the requirements of the Supreme People's Procuratorate, combined with the digital construction of the prosecution, trial, monitor the construction of reconnaissance and command operational needs, the use of advanced audio and video codec technology, streaming media and centralized storage technology, information security technology, computer communications and control technology, database technology to develop a set of interrogation of criminal suspects duty monitoring platform synchronized audio and video recording. The system is a full-featured, advanced technology, stable performance, reliable, user-friendly operation, can be very effective for the public, prosecutors, and judicial departments to provide assistance in handling cases, can effectively fight crime, to prevent unfounded allegations of criminal suspects, torture and other investigators phenomenon reflects handling prosecution and civilized image.The integration of simultaneous audio and video recording system to enable the prosecution at all levels of cadres and policemen to take full advantage of information technology, network, electronic resources, a strong promotion of the prosecution to carry out trials, hierarchical information technology to promote the building of the prosecution. And for the recorded audio-visual materials, paper, a DCT-based video watermarking scheme, experiments show that the program can then generate the key sequence according to options embedded watermark video frame, and each selected video frames are embedded in the complete watermark information, can be a better resistance to noise, filtering, cutting and other attacks. Meanwhile, the watermark position and watermark intensity of the uncertainty can further enhance the resistance to collusion attacks.The synchronized audio and video recordings of the integrated system aimed at ensuring performance of advanced, mature technologies, application of normative, evidence security and adaptability to changes in demand and greatly advanced the work of the prosecution tried the pace of information technology to enrich the prosecution line network application.