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Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media.

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Frame rate, the number of still pictures per unit of time of video, ranges from six or eight frames per second (frame/s) for old mechanical cameras to 120 or more frames per second for new professional cameras. PAL standards (Europe, Asia, Australia, etc.) and SECAM (France, Russia, parts of Africa etc.) specify 25 frame/s, while NTSC standards (USA, Canada, Japan, etc.) Film is shot at the slower frame rate of 24 frames per second, which slightly complicates the process of transferring a cinematic motion picture to video. The minimum frame rate to achieve a comfortable illusion of a moving image is about sixteen frames per second.

Video can be interlaced or progressive. Interlacing was invented as a way to reduce flicker in early mechanical and CRT Video displays without increasing the number of complete frames per second, which would have sacrificed image detail to remain within the limitations of a narrow bandwidth. The horizontal scan lines of each complete frame are treated as if numbered consecutively, and captured as two fields: an odd field (upper field) consisting of the odd-numbered lines and an even field (lower field) consisting of the even-numbered lines.

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How To Analyze Security Your Needs

Developing a comprehensive security plan requires methodical and deliberate analysis. The resulting series of recommendations are orchestrated to complement and support each other. NorthEast Remote Surveillance can review your security needs and develop a comprehensive plan, including Video Surveillance Systems and Access control. Its Security Camera Installers are professionals at Security Camera Integration Pa.

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