INTERLACE
Interlacing is a method of displaying images on a raster-scanned display device, such as a cathode ray tube (CRT). The method causes less visible flickering than non-interlaced methods. The display alternates between drawing the even-numbered lines and the odd-numbered lines of each picture. In the PAL and NTSC standards, the lower (even) field is always drawn first.
ALSO SEE: PROGRESSIVE SCAN, LINE DOUBLING
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