Grass Valley 4300 Krystal Reference Manual v.3.1 - Manual (Page 311)

Krystal 4300 Reference Glossary-7
have paths. In these cases, the path deter-
mines the rate of change of the interpolated
parameters.
Pattern Modulation
An oscillation or modulation of the vertical
and/or horizontal dimensions of a pattern
edge.
Perspective
The apparent distortion of an image as it
moves toward or away from the viewer. Re-
lated to the location of the vanishing point.
Physical Channel
A Video Processor frame able to receive, ma-
nipulate, and output processed video and
key sources. A physical channel can be con-
trolled by a Logical Channel on the Krystal
Control Panel.
Picture
The video image displayed on the monitor.
Posterization
Changing the appearance of the video image
by modifying the luminance quantization
levels.
R
R-Y
The designator used to describe the Red mi-
nus Luminance color portion of a component
video signal.
RAM (Random Access Memory)
A computer memory system that allows rap-
id storage and retrieval of information. It is
(usually) considered volatile in that the in-
formation is lost if power is interrupted. Also
see NV RAM
Recursive Loop
Refers to the part of the Video Processor used
to build special effects such as: Mosaic, Mon-
tage, Strobe, etc.
Register
See Effect Register.
Resource Manager
A module that routes control data from each
Effect Managers to the Video Processors ac-
quired by each Effect manager.
RGB
Red, green, blue; the three primary colors
used in video transmission/reception, often
referring to the three (unencoded) color com-
ponent outputs of a color camera.
S
S-Linear
In path control, applies a linear or straight
change between keyframes, with accelera-
tion and deceleration applied at the begin-
ning and end of each keyframe, respectively.
Screen
The surface of the monitor on which images
are viewed.
Safe Action Area
Markers that define the area of the screen vis-
ible on most home television sets.
Safe Title Area
Markers that define the area where text can
be placed and remain legible on most home
television sets.
Saturation
The intensity of a color; the degree by which
the eye perceives a color as departing from a
gray or white scale of the same brightness. A
saturated color does not contain any white.