Matrox DigiSuite LX MAX, Руководство пользователя и инструкция по установке

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Appendix B, DigiSuite Glossary
Use this glossary as a reference for many of the
basic terms in the DigiSuite manuals and related
documentation.
Numerics
1394 See IEEE-1394.
2D
Short for two-dimensional. An image that
has height and width only.
3D Short for three-dimensional. An object in
three dimensions has height, width, and depth.
Various techniques are used to show 3D images on
2D surfaces like your computer screen.
3D tile A Matrox effect that uses rotating tiled
patterns with various numbers of rows and
columns.
4:2:2P@ML
4:2:2 Profile@Main Level. An
international standard video compression profile
introduced by MPEG-2. It supports 4:2:2
luminance/chrominance sampling at up to
720×608 pixel resolution, and data transfer rates
up to 50 Mb/sec (5.96 MB/sec). This profile is
used for high-quality distribution and for
archiving.
See also MP@ML.
A
A/B roll Typically, A/B roll is an editing
technique where scenes or sounds on two source
reels (called roll A and roll B) are played
simultaneously to create dissolves, wipes, and
other effects. On nonlinear editing systems, A/B
roll refers to using two source streams (
.avi , .wav ,
.tga , and so on) to create an effect.
accelerated print-to-disk The process of
rendering to an .avi file a realtime sequence of
effects on DigiSuite (excluding Inscriber/CG
rolling and crawling titles).
See also multi-layer
compositing.
AGP slot
Connection slot to a type of
expansion bus found in most current computers.
The AGP slot is used to house the display card.
aliasing
A display characteristic of computer-
generated text or graphics that appears as jagged or
stair-stepped edges on diagonal lines.
See also
anti-aliasing.
alpha key An effect that makes parts of a
foreground image fully or partially transparent
based on alpha (transparency) values stored within
the image’s file, so that an underlying image can
show through.
analog component video See component
video.
analog signal A video or audio signal that
varies continuously, as opposed to a digital signal
which varies only by fixed steps.
anti-aliasing A technique that smooths jagged
edges in computer-generated text or graphics.
artifacting A video defect in which old
information remains in the display even as new
information is being updated.
aspect ratio
A width-to-height ratio. For
example, a 12-by-9-inch image has an aspect ratio
of 4:3 (four-to-three). Most TV screens have a 4:3
aspect ratio. HDTV screens have a 16:9 aspect
ratio.
See also pixel, square.
assemble editing Recording new video and
audio material sequentially onto tape. Because all
the signals are recorded (video, audio, and control
track), the new material completely replaces any
previously recorded material on the tape.
See also
insert editing.
attenuation A decrease in an electrical signal’s
amplitude.
Glossary of terms