2:1 Interlace
2:1 interlace is a term referred in CCTV system. Two fields comprise one frame. For two adjacent fields, lines are scanned alternately with equal interval of time and phase relations.
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2:1 interlace is a term referred in CCTV system. Two fields comprise one frame. For two adjacent fields, lines are scanned alternately with equal interval of time and phase relations.


