THOMSON GRASS VALLEY KayakDD-1, User Manual

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KayakDD - Digital Production Switcher
Frame
One complete scan of a video image. For interlace video, alternate lines are
scanned, and so a frame containing all the picture information consists of two
fields.
cond. For interlace systems the frame
rate is half the field presentation rate.
ain
An amplification factor applied to a key control signal by a keyer that determines
how much, if any, of the background and key fill video will be mixed together at
the key edge areas. Low gain (1, or unity) generally results in a linear key.
General Purpose Interface (GP)
An interface that allows limited remote control of some of a device’s functions.
GPI General Purpose Interface Input
GPO General Purpose Interface Output
General Purpose Interface (GPO)
An interface that allows limited remote control of some of a device’s functions.
House Sync
Sync generated within a facility that is used as a reference for generating and/or
timing other signals.
Hue
The location of a color on the color spectrum (i.e. red, yellow, green, blue).
Chroma, hue, and luminance make up the three characteristics of television
color.
Interlace
A system of video scanning where the odd and even numbered lines of a picture
are presented consecutively as two separate interleaved fields. The two fields
required to make a complete picture are called a frame.
Jitter
An undesirable variation in the timing of transitions in a digital signal.
Positioner
A hardware positioner with control of multiple axes.
Key
An effect where a portion of a background scene is replaced by a new video.
Key cut and key fill signals are involved, though in some cases the same signal
may be used for both (self key).
Key Cut
In key effects, the key cut signal is used to specify where to cut a hole in the
background that will be filled with the key fill video. The key cut signal
determines the shape of the key effect.
Key Fill
In key effects, the video signal which fills the hole cut in the background video.
Frame Rate
The number of frames presented per se
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