Matrox Meteor-II /1394 Installation And Hardware Reference page 41

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DCF
Digitizer Configuration Format. A DCF defines the input
data format and among other things, how to accept or
generate video timing signals such as horizontal sync,
vertical sync, and pixel clock.
Field
One of the two halves that make up an image. One half
consists of the image's odd lines (known as the odd field); the
other half consists of the image's even lines (known as the
even field).
Frame
A single image grabbed from a video camera.
Grab
To acquire an image from a camera.
Horizontal sync
The part of a video signal that indicates the end of a line and
the start of a new one.
See also vertical sync.
HSL
A color space that represents color using components of hue,
saturation, and luminance. The hue component describes the
actual color of a pixel. The saturation component describes
the concentration of that color. The luminance component
describes the combined brightness of the primary colors.
Host
In general, Host refers to the principal CPU in one's
computer.