Matrox Meteor-II/Camera Link Installation And Hardware Reference page 59

• Composite sync
A synchronization signal made up of two components: one horizontal and one
vertical.
• 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.
• Display memory
See frame buffer.
• Exposure time
Refers to the period during which the image sensor of a camera is exposed to light.
As the length of this period increases, so does the image brightness.
• 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.
• Frame buffer
A frame buffer is a dedicated storage area often used for data transfers between
devices of differing speeds. For example, since a computer sends out data faster
than a screen can display it, the data is temporarily stored in the frame buffer. The
buffer is generally thought of as a two-dimensional surface with a certain pixel
depth.
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