Recently, manufacturers have been promoting CCTV cameras with resolution specifications
higher than 540 HTVL, implying that video security customers will benefit from enhanced
resolution. It turns out, however, that even if a CCTV camera can pass a test that validates a resolution specification over 540 HTVL, the end-user is not going to get more than 540 lines out of a typical installation because of system limitations common to all real-world CCTV applications.
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Data compression is the process of encoding information to reduce the number of bits as compared to the uncompressed version of the information. A compression process will reduce the disk space required to store the information, and bandwidth required to transmit information.
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A Digital Video Management System acts as the front end interface to the operators of a security system. It is the most visible component in a security and surveillance installation and often the most important component to decide on. The DVMS features and level of integration with cameras and other security sensor devices will ultimately determine if it will meet the needs of your organization or customer.
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