Milestone XProtect Smart Client 2013 - Manual (Page 171)

Milestone XProtect ® Smart Client
2014
User's Manual
www.milestonesys.com 171 Glossary of Terms
floor plan, photo, etc. used in a view (on page
173).
Matrix
Product integrated into selected surveillance
systems, enabling control of live camera views
on remote computers for distributed viewing.
Computers on which Matrix-triggered video
can be viewed are commonly known as Matrix
recipients (see "Matrix Recipient" on page
171).
Matrix Recipient
Computer on which Matrix-triggered video can
be viewed.
Monitor
An individual monitor in a Smart Wall (a.k.a.
monitor wall or video wall).
MPEG
A group of compression standards and file
formats for digital video, developed by the
Moving Pictures Experts Group (MPEG).
MPEG standards use so-called lossy
compression as they store only the changes
between keyframes, removing often
considerable amounts of redundant
information: Keyframes stored at specified
intervals record the entire view of the camera,
whereas the following frames record only
pixels that change. This helps greatly reduce
the size of MPEG files.
O
Output
Data going out of a computer. On IP
surveillance systems, output is frequently used
for activating devices such as gates, sirens,
strobe lights, etc.
Overlay Button
Button appearing as a layer upon the video
when you move your mouse cursor over
individual camera positions in views on the
Live tab. With overlay buttons it is possible to
activate speakers, events, output, move PTZ
(on page 172) cameras, start recording, clear
signals from cameras, etc.
P
Pane
Small groups of buttons, fields, etc. located in
the left side of the Smart Client window. Panes
have a sky blue background, and give you
access to the majority of the Smart Client 's
features. Exactly which panes you will see
depends on your Smart Client configuration
and on your task, for example on whether you
are viewing live video on the Live tab or
recorded video on the Playback tab.
P-Frame
Short name for predictive frame. The MPEG
(on page 171) standard for digital video
compression uses P-frames together with I-
frames (see "I-Frame" on page 170). An I-
frame, also known as a keyframe, is a single
frame stored at specified intervals. The I-frame
records the entire view of the camera, whereas
the following frames (the P-frames) record only
the pixels that change. This helps greatly
reduce the size of MPEG files.
Port
A logical endpoint for data traffic. Networks
use different ports for different types of data
traffic. Therefore it is sometimes, but not
always, necessary to specify which port to use
for particular data communication. Most ports
are used automatically based on the types of
data included in the communication. On
TCP/IP networks, port numbers range from 0
to 65536, but only ports 0 to 1024 are reserved
for particular purposes. For example, port 80 is
used for HTTP traffic which is used when
viewing web pages.
Preset