PANAVISION Genesis, Руководство пользователя

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Panavision Genesis Manual v1.3
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151
V39
14.3 About the recording format options
444 stands for 4:4:4 R G B
The 4:4:4 is the full bandwidth uncompressed signal of the Genesis.
4:4:4 (444 for short) stands for an even ratio between the Red,
Green and Blue components of the signal. 444 has more information
than 422
422 stands for 4:2:2 Y Cb Cr
4:2:2 is a way of compressing the 4:4:4 signal to achieve less data.
4:2:2 represents the ratio of Luminance (Y) information to the Blue
and Red digital color difference signals. The actual ratio is an old
historical reference to multiples of NTSC sub-carrier. The important
thing to retain is that, for every 4 samples of luminance, there are 2
samples of each of the color difference components.
P stands for Progressive Scan
In Progressive Scan the entire frame is captured at once, like film.
I stands for Interlace Scan
Interlace Scan means that every odd line (lines 1, 3, 5, etc) is
captured in one moment, and then every even line (lines 2, 4, 6
etc) in the next moment. Interlace scan is typically used in
television broadcast.
sF stands for Segmented Frames
Segmented Frame means that the Progressive Frame is broken
down into 2 Fields (half-frames) for recording purposes