Frame Aspect Ratios
MPEG-2 HDV and Apple Intermediate Codec feature a 16:9 widescreen aspect ratio for all resolutions.
The 1080i format features 1080 lines (1440 pixels per line), interlaced, using non-square pixels to display a screen ratio of 16:9 (equivalent to 1920 x 1080). The 720p format features 720 lines (equivalent to 1280 x 720) with a progressive scan.
Read more about this topic: Apple Intermediate Codec
Famous quotes containing the words frame, aspect and/or ratios:
“she drew back a while,
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With frantic gesture and short breathless cry
Folded his frame in her dissolving arms.
Now blackness veiled his dizzy eyes, and night
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Rolled back its impulse on his vacant brain.”
—Percy Bysshe Shelley (1792–1822)
“Great feelings will often take the aspect of error, and great faith the aspect of illusion.”
—George Eliot [Mary Ann (or Marian)
“Typography is not only a technology but is in itself a natural resource or staple, like cotton or timber or radio; and, like any staple, it shapes not only private sense ratios but also patterns of communal interdependence.”
—Marshall McLuhan (1911–1980)