V
value set -
A control used to present a series
of mutually exclusive graphical choices. A tool palette in a paint program
can be implemented using a value set.
VCR
-
VDD
-
VDH
-
VDP
-
vector
graphics -
vendor
specific drivers -
An extension to an MCD to
execute hardware specific commands.
VHS -
Very high speed. A consumer and industrial tape
format (VHS format).
vicon -
A
vicon, or video icon, can be an animation or motion video segment in icon
size. Usually this would be a short, repeating segment, such as an animation
of a cassette tape with turning wheels.
video
-
Pertaining to the portion of recorded information
that can be seen.
video aspect ratio -
video attribute control
-
Provides access to and operation of the standard
video attributes: brightness, contrast, freeze, hue, saturation, and sharpness.
All device communication and user interface support is handled by the control.
video attributes -
Refers
to the standard video attributes: brightness, contrast, freeze, hue, saturation,
and sharpness.
video clip -
A
section of filmed or videotaped material.
video
clipping -
video
digitizer -
Any system for converting analog
video material to digital representation. (For example, see DVI.)
video display buffer -
The
buffer containing the visual information to be displayed. This buffer is
read by the video display controller.
video display
controller -
The graphics or video adapter that
connects to a display and presents visual information.
video
encoder -
A device (adapter) that transforms
the high-resolution digital image from the computer into a standard television
signal, thereby allowing the computer to create graphics for use in video
production.
video graphics adapter -
A
graphics controller for color displays. The pel resolution of the video
graphics adapter is 4:4.
video image -
(1)
A still video image that has been captured. (2) Synonymous with image
and still image.
video monitor
-
A display device capable of accepting a video signal
that is not modulated for broadcast either on cable or over the air; in
videotaping, a television screen located away from the set where the footage
can be viewed as it is being recorded.
video
overlay -
video
overlay device -
video plane -
In
a dual plane video system, the video plane contains the video. This video
plane will be combined with the graphics plane to create an entire display
image.
video programming interface (VPI)
-
A subsystem that performs output from video source
to video window.
video quality -
The
compression quality level setting to be set for the CODEC. This value is
in the range of 0 (min) - 100 (max).
video record
rate -
Frame rate for recording as an integral
number of frames per second. This sets the target capture rate, but there
are no assurances this rate will be attained. Drop frame records will be
inserted into the output data stream to indicate frames dropped during the
capture/record process.
video record frame duration
-
Frame rate for recording as the time duration
of each frame in microseconds. Useful for setting
non-integer frame rates, for example, 12.5 FPS of a PAL videodisc: 1000000/12.5
= 8000 microseconds.
video signal -
An
electrical signal containing video information. The signal must be in some
standard format, such as NTSC or PAL.
VSD
-
video
scaling -
(1) Expanding or reducing video information
in size or area. (2) See also aspect ratio.
video
scan converter -
A device that emits a video
signal in one standard into another device of different resolution or scan
rate.
video segment -
A
contiguous set of recorded data from a video track. A video segment might
or might not be associated with an audio segment.
video
signal -
An electrical signal containing video
information. The signal must be in some standard format, such as NTSC or
PAL.
video source selection -
The
ability of an application to change to an alternate video input using the
connector command.
video tearing -
video
teleconferencing -
A means of telecommunication
characterized by audio and video transmission, usually involving several
parties. Desktop video teleconferencing could involve having the audio
and video processed by the user's computer system, that is, with the other
users' voices coming through the computer's speaker, and video windows of
the other users displayed on the computer's screen.
videocassette
recorder (VCR) -
A device for recording or playing
back videocassettes.
videodisc -
A
disc on which programs have been recorded for playback on a computer (or
a television set); a recording on a videodisc. The most common format in
the United States and Japan is an NTSC signal recorded on the optical reflective
format.
videodisc player control -
Provides
access to and operation of the following videodisc functions: eject, pause,
play forward, play reverse, position, record, repeat, rewind, scan forward,
scan reverse, step forward, step reverse, and stop. All device communication
and user interface support is handled by the control.
videotape
-
(1) The tape used to record visual images
and sound. (2) To make a videotape of. (3) A recording of visual images
and sound made on magnetic tape. (All shooting is done in this format,
even if the results are later transferred to videodisc or film.)
videotape
recorder (VTR) -
A device for recording and
playing back videotapes. (The professional counterpart of a consumer VCR.)
videotex -
A system
that provides two-way interactive information services, including the exchange
of alphanumeric and graphic information, over common carrier facilities
to a mass consumer market using modified TV displays with special decoders
and modems.
video windows -
Graphical
PM-style windows in which video is displayed. Most often associated with
the video overlay device.
view -
The
form in which an object is presented. The four kinds of views are: composed,
contents, settings, and help.
viewport -
An area on the usable area of the display surface
over which the developer has control of the size, location, and scaling,
and in which the user can view all or a portion
of the data outlined by the window.
virtual device
helper -
A system service that is available
to perform essential functions.
VO -
Script
abbreviation for voice-over.
voice-over
-
(1) The voice of an unseen narrator in a video
presentation. (2) A voice indicating the thoughts of a visible character
without the character's lips moving.
volume
-
The intensity of sound. A volume of 0 is minimum
volume. A volume of 100 is maximum volume.
VPI
-
Video programming interface.
VTR
-
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