This chapter explains the difference between NTSC and PAL closed-circuit television (CCTV) technology and digital video surveillance, including how the traditional analog waveforms are encoded for digital transmissions over an IP network. The various digital resolutions for display and recording are explained, and the required architecture to support high definition for surveillance is discussed.
KeywordsNTSC; PAL; megapixel; encoding; decoding; interlacing; progressive scan; pixels; MPEG-4; H.264; MJPEG; macroblocks; bandwidth; storage
The difference between digital video and standard analog video is the method of delivery. Digital video follows the laws of all digital technology, breaking down video imagery into ...
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